./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa34b6970b46b2c3f1bda76d086482188f10831dd44cba913e5171769601c6f3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:11:31,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:11:31,925 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 02:11:31,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:11:31,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:11:31,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:11:31,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:11:31,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:11:31,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:11:31,957 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:11:31,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:11:31,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:11:31,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:11:31,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:11:31,959 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:11:31,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:11:31,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:11:31,961 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:11:31,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:11:31,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:11:31,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:11:31,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:11:31,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:11:31,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:11:31,966 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:11:31,967 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:11:31,967 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:11:31,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:11:31,968 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:11:31,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:11:31,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:11:31,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:11:31,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:11:31,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:11:31,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:11:31,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:11:31,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:11:31,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:11:31,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:11:31,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:11:31,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:11:31,971 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:11:31,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:11:31,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:11:31,972 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa34b6970b46b2c3f1bda76d086482188f10831dd44cba913e5171769601c6f3 [2023-11-29 02:11:32,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:11:32,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:11:32,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:11:32,221 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:11:32,222 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:11:32,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound10.c [2023-11-29 02:11:34,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:11:35,083 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:11:35,083 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound10.c [2023-11-29 02:11:35,090 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/data/9695aee09/ebe22d5d2b4c43ecb2c0feff0fbc3963/FLAG422adf5af [2023-11-29 02:11:35,103 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/data/9695aee09/ebe22d5d2b4c43ecb2c0feff0fbc3963 [2023-11-29 02:11:35,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:11:35,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:11:35,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:11:35,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:11:35,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:11:35,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b30579c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35, skipping insertion in model container [2023-11-29 02:11:35,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,136 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:11:35,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:11:35,289 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:11:35,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:11:35,322 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:11:35,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35 WrapperNode [2023-11-29 02:11:35,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:11:35,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:11:35,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:11:35,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:11:35,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,364 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 160 [2023-11-29 02:11:35,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:11:35,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:11:35,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:11:35,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:11:35,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,377 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,389 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:11:35,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,394 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:11:35,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:11:35,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:11:35,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:11:35,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (1/1) ... [2023-11-29 02:11:35,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:11:35,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:35,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:11:35,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:11:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:11:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 02:11:35,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 02:11:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:11:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:11:35,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:11:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 02:11:35,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 02:11:35,535 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:11:35,538 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:11:35,934 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:11:35,960 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:11:35,960 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 02:11:35,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:11:35 BoogieIcfgContainer [2023-11-29 02:11:35,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:11:35,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:11:35,964 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:11:35,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:11:35,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:11:35" (1/3) ... [2023-11-29 02:11:35,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c648339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:11:35, skipping insertion in model container [2023-11-29 02:11:35,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:35" (2/3) ... [2023-11-29 02:11:35,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c648339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:11:35, skipping insertion in model container [2023-11-29 02:11:35,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:11:35" (3/3) ... [2023-11-29 02:11:35,971 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_unwindbound10.c [2023-11-29 02:11:35,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:11:35,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2023-11-29 02:11:36,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:11:36,050 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32fb1de9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:11:36,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2023-11-29 02:11:36,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 84 states have (on average 1.9047619047619047) internal successors, (160), 153 states have internal predecessors, (160), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:11:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 02:11:36,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:36,062 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:36,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:36,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:36,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1933443539, now seen corresponding path program 1 times [2023-11-29 02:11:36,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:36,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898174294] [2023-11-29 02:11:36,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:36,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:36,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:36,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898174294] [2023-11-29 02:11:36,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 02:11:36,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151177929] [2023-11-29 02:11:36,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:36,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:36,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:36,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:36,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:11:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:36,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:11:36,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:36,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:11:36,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:36,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151177929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:36,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:36,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:11:36,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561050432] [2023-11-29 02:11:36,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:36,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:11:36,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:36,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:11:36,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:11:36,347 INFO L87 Difference]: Start difference. First operand has 165 states, 84 states have (on average 1.9047619047619047) internal successors, (160), 153 states have internal predecessors, (160), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:11:36,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:36,388 INFO L93 Difference]: Finished difference Result 327 states and 367 transitions. [2023-11-29 02:11:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:11:36,391 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 02:11:36,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:36,398 INFO L225 Difference]: With dead ends: 327 [2023-11-29 02:11:36,399 INFO L226 Difference]: Without dead ends: 161 [2023-11-29 02:11:36,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:11:36,405 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:36,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:11:36,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-29 02:11:36,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-11-29 02:11:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 83 states have (on average 1.8433734939759037) internal successors, (153), 150 states have internal predecessors, (153), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 02:11:36,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 171 transitions. [2023-11-29 02:11:36,453 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 171 transitions. Word has length 13 [2023-11-29 02:11:36,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:36,453 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 171 transitions. [2023-11-29 02:11:36,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:11:36,454 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 171 transitions. [2023-11-29 02:11:36,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 02:11:36,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:36,455 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:36,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:11:36,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 02:11:36,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:36,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:36,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1970343789, now seen corresponding path program 1 times [2023-11-29 02:11:36,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:36,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660937452] [2023-11-29 02:11:36,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:36,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:36,677 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:36,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352533728] [2023-11-29 02:11:36,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:36,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:36,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:36,679 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:36,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:11:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:36,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:11:36,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:11:36,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:36,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:36,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660937452] [2023-11-29 02:11:36,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:36,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352533728] [2023-11-29 02:11:36,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352533728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:36,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:36,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:11:36,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674966470] [2023-11-29 02:11:36,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:36,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:11:36,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:36,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:11:36,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:11:36,846 INFO L87 Difference]: Start difference. First operand 161 states and 171 transitions. Second operand has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:11:37,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:37,122 INFO L93 Difference]: Finished difference Result 161 states and 171 transitions. [2023-11-29 02:11:37,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:11:37,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 02:11:37,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:37,125 INFO L225 Difference]: With dead ends: 161 [2023-11-29 02:11:37,125 INFO L226 Difference]: Without dead ends: 159 [2023-11-29 02:11:37,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:11:37,128 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 431 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:37,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 248 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:11:37,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-29 02:11:37,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-11-29 02:11:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 83 states have (on average 1.819277108433735) internal successors, (151), 148 states have internal predecessors, (151), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 02:11:37,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 169 transitions. [2023-11-29 02:11:37,146 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 169 transitions. Word has length 13 [2023-11-29 02:11:37,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:37,147 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 169 transitions. [2023-11-29 02:11:37,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:11:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 169 transitions. [2023-11-29 02:11:37,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 02:11:37,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:37,148 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:37,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 02:11:37,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:37,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:37,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:37,354 INFO L85 PathProgramCache]: Analyzing trace with hash 951115354, now seen corresponding path program 1 times [2023-11-29 02:11:37,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:37,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825959134] [2023-11-29 02:11:37,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:37,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:37,366 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:37,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661381473] [2023-11-29 02:11:37,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:37,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:37,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:37,368 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:37,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:11:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:37,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:11:37,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:11:37,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:37,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:37,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825959134] [2023-11-29 02:11:37,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:37,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661381473] [2023-11-29 02:11:37,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661381473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:37,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:37,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:11:37,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126880317] [2023-11-29 02:11:37,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:37,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:11:37,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:37,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:11:37,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:11:37,473 INFO L87 Difference]: Start difference. First operand 159 states and 169 transitions. Second operand has 6 states, 4 states have (on average 2.5) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 02:11:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:37,684 INFO L93 Difference]: Finished difference Result 159 states and 169 transitions. [2023-11-29 02:11:37,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:11:37,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-29 02:11:37,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:37,686 INFO L225 Difference]: With dead ends: 159 [2023-11-29 02:11:37,686 INFO L226 Difference]: Without dead ends: 158 [2023-11-29 02:11:37,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:11:37,688 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 143 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:37,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 262 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:11:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-29 02:11:37,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-11-29 02:11:37,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 83 states have (on average 1.8072289156626506) internal successors, (150), 147 states have internal predecessors, (150), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 02:11:37,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2023-11-29 02:11:37,701 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 14 [2023-11-29 02:11:37,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:37,702 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2023-11-29 02:11:37,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 02:11:37,702 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2023-11-29 02:11:37,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 02:11:37,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:37,703 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:37,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:11:37,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:37,907 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:37,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:37,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1564000962, now seen corresponding path program 1 times [2023-11-29 02:11:37,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:37,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673372643] [2023-11-29 02:11:37,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:37,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:37,918 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:37,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724839706] [2023-11-29 02:11:37,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:37,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:37,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:37,919 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:37,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:11:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:37,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:11:37,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:38,017 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:11:38,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:38,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:38,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673372643] [2023-11-29 02:11:38,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:38,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724839706] [2023-11-29 02:11:38,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724839706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:38,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:38,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:11:38,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041961654] [2023-11-29 02:11:38,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:38,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:11:38,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:38,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:11:38,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:11:38,020 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 02:11:38,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:38,055 INFO L93 Difference]: Finished difference Result 199 states and 210 transitions. [2023-11-29 02:11:38,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:11:38,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2023-11-29 02:11:38,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:38,057 INFO L225 Difference]: With dead ends: 199 [2023-11-29 02:11:38,057 INFO L226 Difference]: Without dead ends: 198 [2023-11-29 02:11:38,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:11:38,059 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 42 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:38,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 466 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:11:38,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-29 02:11:38,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 174. [2023-11-29 02:11:38,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 97 states have (on average 1.7835051546391754) internal successors, (173), 161 states have internal predecessors, (173), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:11:38,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 193 transitions. [2023-11-29 02:11:38,074 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 193 transitions. Word has length 28 [2023-11-29 02:11:38,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:38,075 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 193 transitions. [2023-11-29 02:11:38,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 02:11:38,075 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 193 transitions. [2023-11-29 02:11:38,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 02:11:38,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:38,076 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:38,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:11:38,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:38,281 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:38,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:38,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1239389620, now seen corresponding path program 1 times [2023-11-29 02:11:38,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:38,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833322863] [2023-11-29 02:11:38,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:38,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:38,292 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:38,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579155824] [2023-11-29 02:11:38,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:38,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:38,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:38,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:38,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:11:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:38,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:11:38,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:38,386 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:11:38,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:38,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:38,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833322863] [2023-11-29 02:11:38,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:38,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579155824] [2023-11-29 02:11:38,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579155824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:38,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:38,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:11:38,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98206854] [2023-11-29 02:11:38,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:38,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:11:38,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:38,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:11:38,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:11:38,389 INFO L87 Difference]: Start difference. First operand 174 states and 193 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 02:11:38,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:38,419 INFO L93 Difference]: Finished difference Result 204 states and 221 transitions. [2023-11-29 02:11:38,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:11:38,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-11-29 02:11:38,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:38,422 INFO L225 Difference]: With dead ends: 204 [2023-11-29 02:11:38,423 INFO L226 Difference]: Without dead ends: 174 [2023-11-29 02:11:38,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:11:38,424 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 3 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:38,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 469 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:11:38,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-29 02:11:38,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2023-11-29 02:11:38,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 97 states have (on average 1.7628865979381443) internal successors, (171), 161 states have internal predecessors, (171), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:11:38,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 191 transitions. [2023-11-29 02:11:38,437 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 191 transitions. Word has length 29 [2023-11-29 02:11:38,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:38,437 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 191 transitions. [2023-11-29 02:11:38,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 02:11:38,437 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 191 transitions. [2023-11-29 02:11:38,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 02:11:38,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:38,438 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:38,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:11:38,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:38,641 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:38,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:38,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1177615479, now seen corresponding path program 1 times [2023-11-29 02:11:38,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:38,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240525286] [2023-11-29 02:11:38,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:38,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:38,652 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:38,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324517317] [2023-11-29 02:11:38,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:38,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:38,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:38,653 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:38,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:11:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:38,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:11:38,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:38,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:38,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:38,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240525286] [2023-11-29 02:11:38,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:38,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324517317] [2023-11-29 02:11:38,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324517317] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:11:38,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:11:38,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-11-29 02:11:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831380006] [2023-11-29 02:11:38,802 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:38,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:11:38,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:38,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:11:38,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:11:38,803 INFO L87 Difference]: Start difference. First operand 174 states and 191 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 02:11:39,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:39,087 INFO L93 Difference]: Finished difference Result 283 states and 300 transitions. [2023-11-29 02:11:39,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:11:39,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2023-11-29 02:11:39,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:39,090 INFO L225 Difference]: With dead ends: 283 [2023-11-29 02:11:39,090 INFO L226 Difference]: Without dead ends: 253 [2023-11-29 02:11:39,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:11:39,091 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 328 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:39,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 445 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:11:39,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-29 02:11:39,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 212. [2023-11-29 02:11:39,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 133 states have (on average 1.8270676691729324) internal successors, (243), 196 states have internal predecessors, (243), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 02:11:39,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 269 transitions. [2023-11-29 02:11:39,104 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 269 transitions. Word has length 32 [2023-11-29 02:11:39,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:39,105 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 269 transitions. [2023-11-29 02:11:39,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 02:11:39,105 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 269 transitions. [2023-11-29 02:11:39,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 02:11:39,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:39,106 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:39,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:11:39,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:39,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:39,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:39,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2146343301, now seen corresponding path program 1 times [2023-11-29 02:11:39,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:39,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68862771] [2023-11-29 02:11:39,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:39,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:39,320 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:39,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377036644] [2023-11-29 02:11:39,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:39,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:39,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:39,321 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:39,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:11:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:39,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:11:39,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:11:39,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:39,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:39,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68862771] [2023-11-29 02:11:39,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:39,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377036644] [2023-11-29 02:11:39,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377036644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:39,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:39,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:11:39,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547839977] [2023-11-29 02:11:39,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:39,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:11:39,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:39,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:11:39,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:11:39,399 INFO L87 Difference]: Start difference. First operand 212 states and 269 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 02:11:39,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:39,450 INFO L93 Difference]: Finished difference Result 212 states and 269 transitions. [2023-11-29 02:11:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:11:39,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2023-11-29 02:11:39,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:39,453 INFO L225 Difference]: With dead ends: 212 [2023-11-29 02:11:39,453 INFO L226 Difference]: Without dead ends: 210 [2023-11-29 02:11:39,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:11:39,454 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 166 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:39,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 459 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:11:39,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-29 02:11:39,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2023-11-29 02:11:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 133 states have (on average 1.8045112781954886) internal successors, (240), 194 states have internal predecessors, (240), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 02:11:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 266 transitions. [2023-11-29 02:11:39,468 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 266 transitions. Word has length 33 [2023-11-29 02:11:39,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:39,468 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 266 transitions. [2023-11-29 02:11:39,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 02:11:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 266 transitions. [2023-11-29 02:11:39,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 02:11:39,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:39,470 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:39,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 02:11:39,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:39,671 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:39,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:39,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2112132818, now seen corresponding path program 1 times [2023-11-29 02:11:39,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:39,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812798402] [2023-11-29 02:11:39,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:39,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:39,680 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:39,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284362935] [2023-11-29 02:11:39,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:39,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:39,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:39,682 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:39,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:11:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:39,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:11:39,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:39,753 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:11:39,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:39,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:39,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812798402] [2023-11-29 02:11:39,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:39,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284362935] [2023-11-29 02:11:39,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284362935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:39,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:39,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:11:39,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115794005] [2023-11-29 02:11:39,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:39,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:11:39,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:39,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:11:39,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:11:39,756 INFO L87 Difference]: Start difference. First operand 210 states and 266 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 02:11:39,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:39,822 INFO L93 Difference]: Finished difference Result 248 states and 306 transitions. [2023-11-29 02:11:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:11:39,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2023-11-29 02:11:39,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:39,825 INFO L225 Difference]: With dead ends: 248 [2023-11-29 02:11:39,825 INFO L226 Difference]: Without dead ends: 247 [2023-11-29 02:11:39,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:11:39,826 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 53 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:39,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 636 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:11:39,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-29 02:11:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 227. [2023-11-29 02:11:39,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 148 states have (on average 1.7635135135135136) internal successors, (261), 210 states have internal predecessors, (261), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 02:11:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 289 transitions. [2023-11-29 02:11:39,841 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 289 transitions. Word has length 34 [2023-11-29 02:11:39,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:39,841 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 289 transitions. [2023-11-29 02:11:39,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 02:11:39,842 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 289 transitions. [2023-11-29 02:11:39,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 02:11:39,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:39,842 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:39,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 02:11:40,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 02:11:40,043 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:40,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1759895408, now seen corresponding path program 1 times [2023-11-29 02:11:40,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:40,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166740604] [2023-11-29 02:11:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:40,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:40,053 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:40,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [81003068] [2023-11-29 02:11:40,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:40,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:40,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:40,055 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:40,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:11:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:40,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:11:40,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:40,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:40,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:40,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166740604] [2023-11-29 02:11:40,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:40,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81003068] [2023-11-29 02:11:40,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81003068] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:11:40,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:11:40,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:11:40,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961649940] [2023-11-29 02:11:40,286 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:40,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:11:40,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:40,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:11:40,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:11:40,288 INFO L87 Difference]: Start difference. First operand 227 states and 289 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 02:11:40,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:40,675 INFO L93 Difference]: Finished difference Result 268 states and 290 transitions. [2023-11-29 02:11:40,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:11:40,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-11-29 02:11:40,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:40,678 INFO L225 Difference]: With dead ends: 268 [2023-11-29 02:11:40,678 INFO L226 Difference]: Without dead ends: 266 [2023-11-29 02:11:40,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:11:40,679 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 322 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:40,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 414 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:11:40,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-29 02:11:40,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2023-11-29 02:11:40,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 148 states have (on average 1.75) internal successors, (259), 210 states have internal predecessors, (259), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 02:11:40,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 287 transitions. [2023-11-29 02:11:40,693 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 287 transitions. Word has length 36 [2023-11-29 02:11:40,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:40,693 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 287 transitions. [2023-11-29 02:11:40,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 02:11:40,694 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 287 transitions. [2023-11-29 02:11:40,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 02:11:40,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:40,695 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:40,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 02:11:40,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 02:11:40,900 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:40,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:40,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1277817118, now seen corresponding path program 1 times [2023-11-29 02:11:40,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:40,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925277182] [2023-11-29 02:11:40,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:40,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:40,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:40,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134604937] [2023-11-29 02:11:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:40,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:40,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:40,912 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:40,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:11:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:40,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:11:40,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:41,043 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:41,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:41,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:41,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925277182] [2023-11-29 02:11:41,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:41,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134604937] [2023-11-29 02:11:41,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134604937] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:11:41,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:11:41,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:11:41,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808016967] [2023-11-29 02:11:41,142 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:41,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:11:41,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:41,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:11:41,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:11:41,143 INFO L87 Difference]: Start difference. First operand 227 states and 287 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 02:11:41,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:41,524 INFO L93 Difference]: Finished difference Result 349 states and 378 transitions. [2023-11-29 02:11:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:11:41,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2023-11-29 02:11:41,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:41,527 INFO L225 Difference]: With dead ends: 349 [2023-11-29 02:11:41,528 INFO L226 Difference]: Without dead ends: 347 [2023-11-29 02:11:41,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:11:41,529 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 401 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:41,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 456 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:11:41,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-29 02:11:41,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 273. [2023-11-29 02:11:41,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.7789473684210526) internal successors, (338), 252 states have internal predecessors, (338), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 02:11:41,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 374 transitions. [2023-11-29 02:11:41,545 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 374 transitions. Word has length 37 [2023-11-29 02:11:41,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:41,546 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 374 transitions. [2023-11-29 02:11:41,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 02:11:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 374 transitions. [2023-11-29 02:11:41,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 02:11:41,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:41,547 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:41,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 02:11:41,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 02:11:41,748 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:41,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:41,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1277816128, now seen corresponding path program 1 times [2023-11-29 02:11:41,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:41,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141968076] [2023-11-29 02:11:41,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:41,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:41,756 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:41,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1392700784] [2023-11-29 02:11:41,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:41,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:41,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:41,758 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:41,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:11:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:41,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:11:41,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:11:41,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:41,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:41,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141968076] [2023-11-29 02:11:41,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:41,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392700784] [2023-11-29 02:11:41,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392700784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:41,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:41,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:11:41,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876401467] [2023-11-29 02:11:41,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:41,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:11:41,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:41,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:11:41,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:11:41,864 INFO L87 Difference]: Start difference. First operand 273 states and 374 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 02:11:41,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:41,919 INFO L93 Difference]: Finished difference Result 429 states and 543 transitions. [2023-11-29 02:11:41,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:11:41,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2023-11-29 02:11:41,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:41,922 INFO L225 Difference]: With dead ends: 429 [2023-11-29 02:11:41,922 INFO L226 Difference]: Without dead ends: 273 [2023-11-29 02:11:41,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:11:41,924 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 5 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:41,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 753 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:11:41,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-29 02:11:41,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2023-11-29 02:11:41,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.7736842105263158) internal successors, (337), 252 states have internal predecessors, (337), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 02:11:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 373 transitions. [2023-11-29 02:11:41,939 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 373 transitions. Word has length 37 [2023-11-29 02:11:41,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:41,939 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 373 transitions. [2023-11-29 02:11:41,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 02:11:41,939 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 373 transitions. [2023-11-29 02:11:41,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 02:11:41,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:41,940 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:41,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 02:11:42,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:42,141 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:42,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:42,141 INFO L85 PathProgramCache]: Analyzing trace with hash -957624910, now seen corresponding path program 1 times [2023-11-29 02:11:42,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:42,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532523236] [2023-11-29 02:11:42,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:42,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:42,149 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:42,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945365861] [2023-11-29 02:11:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:42,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:42,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:42,150 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:42,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 02:11:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:42,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:11:42,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:42,262 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:42,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:42,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:42,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532523236] [2023-11-29 02:11:42,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:42,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945365861] [2023-11-29 02:11:42,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945365861] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:11:42,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:11:42,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:11:42,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377645131] [2023-11-29 02:11:42,440 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:42,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:11:42,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:42,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:11:42,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:11:42,441 INFO L87 Difference]: Start difference. First operand 273 states and 373 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:11:43,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:43,239 INFO L93 Difference]: Finished difference Result 420 states and 449 transitions. [2023-11-29 02:11:43,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:11:43,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2023-11-29 02:11:43,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:43,242 INFO L225 Difference]: With dead ends: 420 [2023-11-29 02:11:43,242 INFO L226 Difference]: Without dead ends: 419 [2023-11-29 02:11:43,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:11:43,242 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 617 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:43,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 626 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:11:43,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-29 02:11:43,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 273. [2023-11-29 02:11:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.768421052631579) internal successors, (336), 252 states have internal predecessors, (336), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 02:11:43,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 372 transitions. [2023-11-29 02:11:43,255 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 372 transitions. Word has length 38 [2023-11-29 02:11:43,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:43,255 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 372 transitions. [2023-11-29 02:11:43,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:11:43,255 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 372 transitions. [2023-11-29 02:11:43,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 02:11:43,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:43,256 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:43,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 02:11:43,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:43,461 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:43,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:43,461 INFO L85 PathProgramCache]: Analyzing trace with hash 378398948, now seen corresponding path program 1 times [2023-11-29 02:11:43,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:43,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22492466] [2023-11-29 02:11:43,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:43,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:43,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:43,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [567939056] [2023-11-29 02:11:43,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:43,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:43,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:43,470 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:43,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 02:11:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:43,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:11:43,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:43,626 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:43,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:43,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:43,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22492466] [2023-11-29 02:11:43,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:43,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567939056] [2023-11-29 02:11:43,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567939056] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:11:43,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:11:43,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:11:43,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977681097] [2023-11-29 02:11:43,731 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:43,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:11:43,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:43,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:11:43,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:11:43,732 INFO L87 Difference]: Start difference. First operand 273 states and 372 transitions. Second operand has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 02:11:45,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:45,012 INFO L93 Difference]: Finished difference Result 347 states and 374 transitions. [2023-11-29 02:11:45,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:11:45,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2023-11-29 02:11:45,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:45,014 INFO L225 Difference]: With dead ends: 347 [2023-11-29 02:11:45,014 INFO L226 Difference]: Without dead ends: 345 [2023-11-29 02:11:45,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:11:45,015 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 533 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:45,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 315 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:11:45,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-11-29 02:11:45,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 273. [2023-11-29 02:11:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.7578947368421052) internal successors, (334), 252 states have internal predecessors, (334), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 02:11:45,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 370 transitions. [2023-11-29 02:11:45,026 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 370 transitions. Word has length 39 [2023-11-29 02:11:45,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:45,027 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 370 transitions. [2023-11-29 02:11:45,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 02:11:45,027 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 370 transitions. [2023-11-29 02:11:45,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 02:11:45,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:45,028 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:45,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 02:11:45,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 02:11:45,229 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:45,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:45,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1317127471, now seen corresponding path program 1 times [2023-11-29 02:11:45,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:45,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103973059] [2023-11-29 02:11:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:45,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:45,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:45,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1133615403] [2023-11-29 02:11:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:45,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:45,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:45,239 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:45,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 02:11:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:45,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:11:45,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:45,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:45,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:45,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103973059] [2023-11-29 02:11:45,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:45,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133615403] [2023-11-29 02:11:45,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133615403] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:11:45,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:11:45,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 02:11:45,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811744822] [2023-11-29 02:11:45,554 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:45,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:11:45,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:45,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:11:45,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:11:45,556 INFO L87 Difference]: Start difference. First operand 273 states and 370 transitions. Second operand has 10 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:11:48,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:48,040 INFO L93 Difference]: Finished difference Result 339 states and 402 transitions. [2023-11-29 02:11:48,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:11:48,041 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 45 [2023-11-29 02:11:48,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:48,043 INFO L225 Difference]: With dead ends: 339 [2023-11-29 02:11:48,043 INFO L226 Difference]: Without dead ends: 338 [2023-11-29 02:11:48,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:11:48,043 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 482 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:48,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 363 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 02:11:48,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-11-29 02:11:48,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 280. [2023-11-29 02:11:48,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 196 states have (on average 1.75) internal successors, (343), 258 states have internal predecessors, (343), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 02:11:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 381 transitions. [2023-11-29 02:11:48,055 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 381 transitions. Word has length 45 [2023-11-29 02:11:48,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:48,056 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 381 transitions. [2023-11-29 02:11:48,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:11:48,056 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 381 transitions. [2023-11-29 02:11:48,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 02:11:48,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:48,057 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:48,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 02:11:48,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 02:11:48,261 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:48,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:48,261 INFO L85 PathProgramCache]: Analyzing trace with hash 2118721450, now seen corresponding path program 1 times [2023-11-29 02:11:48,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:48,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91285290] [2023-11-29 02:11:48,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:48,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:48,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:48,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512908670] [2023-11-29 02:11:48,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:48,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:48,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:48,268 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:48,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 02:11:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:48,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:11:48,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:48,436 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:48,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:48,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:48,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91285290] [2023-11-29 02:11:48,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:48,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512908670] [2023-11-29 02:11:48,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512908670] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:11:48,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:11:48,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 02:11:48,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241276622] [2023-11-29 02:11:48,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:48,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:11:48,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:48,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:11:48,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:11:48,554 INFO L87 Difference]: Start difference. First operand 280 states and 381 transitions. Second operand has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:11:50,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:50,404 INFO L93 Difference]: Finished difference Result 340 states and 401 transitions. [2023-11-29 02:11:50,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:11:50,404 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 46 [2023-11-29 02:11:50,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:50,406 INFO L225 Difference]: With dead ends: 340 [2023-11-29 02:11:50,406 INFO L226 Difference]: Without dead ends: 339 [2023-11-29 02:11:50,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:11:50,407 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 656 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:50,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 453 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 02:11:50,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-11-29 02:11:50,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 281. [2023-11-29 02:11:50,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 197 states have (on average 1.736040609137056) internal successors, (342), 259 states have internal predecessors, (342), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 02:11:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 380 transitions. [2023-11-29 02:11:50,419 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 380 transitions. Word has length 46 [2023-11-29 02:11:50,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:50,419 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 380 transitions. [2023-11-29 02:11:50,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:11:50,419 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 380 transitions. [2023-11-29 02:11:50,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 02:11:50,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:50,420 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:50,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 02:11:50,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:50,620 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:50,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:50,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1255855603, now seen corresponding path program 1 times [2023-11-29 02:11:50,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:50,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746188895] [2023-11-29 02:11:50,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:50,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:50,627 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:50,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [979450294] [2023-11-29 02:11:50,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:50,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:50,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:50,629 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:50,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 02:11:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:50,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:11:50,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:50,744 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:50,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:50,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746188895] [2023-11-29 02:11:50,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:50,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979450294] [2023-11-29 02:11:50,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979450294] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:11:50,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:11:50,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 02:11:50,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802175153] [2023-11-29 02:11:50,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:50,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:11:50,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:50,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:11:50,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:11:50,870 INFO L87 Difference]: Start difference. First operand 281 states and 380 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:11:52,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:52,113 INFO L93 Difference]: Finished difference Result 324 states and 384 transitions. [2023-11-29 02:11:52,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:11:52,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 47 [2023-11-29 02:11:52,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:52,115 INFO L225 Difference]: With dead ends: 324 [2023-11-29 02:11:52,115 INFO L226 Difference]: Without dead ends: 323 [2023-11-29 02:11:52,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:11:52,115 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 431 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:52,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 492 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:11:52,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-11-29 02:11:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 282. [2023-11-29 02:11:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.7222222222222223) internal successors, (341), 260 states have internal predecessors, (341), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 02:11:52,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 379 transitions. [2023-11-29 02:11:52,128 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 379 transitions. Word has length 47 [2023-11-29 02:11:52,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:52,128 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 379 transitions. [2023-11-29 02:11:52,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:11:52,129 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 379 transitions. [2023-11-29 02:11:52,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 02:11:52,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:52,130 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:52,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 02:11:52,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 02:11:52,332 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:52,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:52,333 INFO L85 PathProgramCache]: Analyzing trace with hash 276818124, now seen corresponding path program 1 times [2023-11-29 02:11:52,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:52,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136015574] [2023-11-29 02:11:52,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:52,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:52,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:52,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [672596005] [2023-11-29 02:11:52,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:52,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:52,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:52,342 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:52,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 02:11:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:52,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:11:52,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:11:52,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:52,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:52,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136015574] [2023-11-29 02:11:52,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:52,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672596005] [2023-11-29 02:11:52,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672596005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:52,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:52,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:11:52,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283842253] [2023-11-29 02:11:52,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:52,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:11:52,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:52,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:11:52,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:11:52,470 INFO L87 Difference]: Start difference. First operand 282 states and 379 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:11:52,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:52,608 INFO L93 Difference]: Finished difference Result 318 states and 380 transitions. [2023-11-29 02:11:52,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:11:52,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2023-11-29 02:11:52,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:52,611 INFO L225 Difference]: With dead ends: 318 [2023-11-29 02:11:52,611 INFO L226 Difference]: Without dead ends: 317 [2023-11-29 02:11:52,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:11:52,612 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 207 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:52,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 226 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:11:52,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-29 02:11:52,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 282. [2023-11-29 02:11:52,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.7121212121212122) internal successors, (339), 260 states have internal predecessors, (339), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 02:11:52,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2023-11-29 02:11:52,628 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 48 [2023-11-29 02:11:52,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:52,629 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2023-11-29 02:11:52,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:11:52,629 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2023-11-29 02:11:52,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 02:11:52,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:52,630 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:52,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 02:11:52,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 02:11:52,831 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:52,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:52,831 INFO L85 PathProgramCache]: Analyzing trace with hash -8572651, now seen corresponding path program 1 times [2023-11-29 02:11:52,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:52,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631009389] [2023-11-29 02:11:52,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:52,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:52,838 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:52,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774917219] [2023-11-29 02:11:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:52,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:52,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:52,840 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:52,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 02:11:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:52,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:11:52,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:53,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:53,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:53,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631009389] [2023-11-29 02:11:53,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:53,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774917219] [2023-11-29 02:11:53,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774917219] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:11:53,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:11:53,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 02:11:53,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201491924] [2023-11-29 02:11:53,127 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:53,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:11:53,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:53,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:11:53,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:11:53,129 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 02:11:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:53,393 INFO L93 Difference]: Finished difference Result 317 states and 378 transitions. [2023-11-29 02:11:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:11:53,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2023-11-29 02:11:53,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:53,396 INFO L225 Difference]: With dead ends: 317 [2023-11-29 02:11:53,396 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 02:11:53,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:11:53,397 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 207 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:53,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 406 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:11:53,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 02:11:53,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 282. [2023-11-29 02:11:53,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.702020202020202) internal successors, (337), 260 states have internal predecessors, (337), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 02:11:53,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 375 transitions. [2023-11-29 02:11:53,410 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 375 transitions. Word has length 49 [2023-11-29 02:11:53,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:53,411 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 375 transitions. [2023-11-29 02:11:53,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 02:11:53,411 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 375 transitions. [2023-11-29 02:11:53,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 02:11:53,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:53,412 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:53,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 02:11:53,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 02:11:53,612 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:53,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:53,613 INFO L85 PathProgramCache]: Analyzing trace with hash -265752082, now seen corresponding path program 1 times [2023-11-29 02:11:53,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:53,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70762249] [2023-11-29 02:11:53,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:53,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:53,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:53,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292091136] [2023-11-29 02:11:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:53,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:53,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:53,621 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:53,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 02:11:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:53,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:11:53,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 02:11:53,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:55,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:55,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70762249] [2023-11-29 02:11:55,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:55,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292091136] [2023-11-29 02:11:55,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292091136] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:11:55,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:11:55,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:11:55,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069706462] [2023-11-29 02:11:55,449 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:55,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:11:55,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:55,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:11:55,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:11:55,450 INFO L87 Difference]: Start difference. First operand 282 states and 375 transitions. Second operand has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:11:56,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:56,864 INFO L93 Difference]: Finished difference Result 324 states and 384 transitions. [2023-11-29 02:11:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:11:56,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2023-11-29 02:11:56,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:56,867 INFO L225 Difference]: With dead ends: 324 [2023-11-29 02:11:56,867 INFO L226 Difference]: Without dead ends: 323 [2023-11-29 02:11:56,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:11:56,868 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 362 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:56,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 428 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 02:11:56,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-11-29 02:11:56,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 282. [2023-11-29 02:11:56,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.6919191919191918) internal successors, (335), 260 states have internal predecessors, (335), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 02:11:56,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 373 transitions. [2023-11-29 02:11:56,884 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 373 transitions. Word has length 50 [2023-11-29 02:11:56,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:56,885 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 373 transitions. [2023-11-29 02:11:56,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:11:56,885 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 373 transitions. [2023-11-29 02:11:56,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 02:11:56,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:56,886 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:56,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 02:11:57,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:57,086 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:57,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:57,086 INFO L85 PathProgramCache]: Analyzing trace with hash -682195484, now seen corresponding path program 1 times [2023-11-29 02:11:57,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:57,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867088887] [2023-11-29 02:11:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:57,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:57,092 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:57,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88201377] [2023-11-29 02:11:57,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:57,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:57,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:57,094 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:57,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 02:11:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:57,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:11:57,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:57,283 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:11:57,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:57,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:57,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867088887] [2023-11-29 02:11:57,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:57,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88201377] [2023-11-29 02:11:57,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88201377] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:11:57,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:11:57,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:11:57,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723450261] [2023-11-29 02:11:57,365 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:57,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:11:57,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:57,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:11:57,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:11:57,366 INFO L87 Difference]: Start difference. First operand 282 states and 373 transitions. Second operand has 7 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:11:58,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:58,439 INFO L93 Difference]: Finished difference Result 321 states and 382 transitions. [2023-11-29 02:11:58,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:11:58,440 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 56 [2023-11-29 02:11:58,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:58,441 INFO L225 Difference]: With dead ends: 321 [2023-11-29 02:11:58,441 INFO L226 Difference]: Without dead ends: 319 [2023-11-29 02:11:58,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:11:58,442 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 279 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:58,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 357 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 02:11:58,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-29 02:11:58,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 282. [2023-11-29 02:11:58,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.6717171717171717) internal successors, (331), 260 states have internal predecessors, (331), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 02:11:58,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 369 transitions. [2023-11-29 02:11:58,457 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 369 transitions. Word has length 56 [2023-11-29 02:11:58,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:58,458 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 369 transitions. [2023-11-29 02:11:58,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:11:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 369 transitions. [2023-11-29 02:11:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 02:11:58,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:58,459 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:58,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 02:11:58,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:58,659 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:11:58,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:58,660 INFO L85 PathProgramCache]: Analyzing trace with hash 326776580, now seen corresponding path program 1 times [2023-11-29 02:11:58,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:58,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833712478] [2023-11-29 02:11:58,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:58,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:58,667 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:58,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124403983] [2023-11-29 02:11:58,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:58,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:58,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:58,669 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:58,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 02:11:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:58,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:11:58,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:11:58,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:59,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:59,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833712478] [2023-11-29 02:11:59,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:59,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124403983] [2023-11-29 02:11:59,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124403983] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:11:59,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:11:59,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:11:59,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026893617] [2023-11-29 02:11:59,032 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:59,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:11:59,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:59,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:11:59,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:11:59,033 INFO L87 Difference]: Start difference. First operand 282 states and 369 transitions. Second operand has 7 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:11:59,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:59,978 INFO L93 Difference]: Finished difference Result 321 states and 378 transitions. [2023-11-29 02:11:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:11:59,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2023-11-29 02:11:59,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:59,981 INFO L225 Difference]: With dead ends: 321 [2023-11-29 02:11:59,981 INFO L226 Difference]: Without dead ends: 319 [2023-11-29 02:11:59,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:11:59,982 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 338 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:59,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 351 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:11:59,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-29 02:11:59,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 282. [2023-11-29 02:12:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.6515151515151516) internal successors, (327), 260 states have internal predecessors, (327), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 02:12:00,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 365 transitions. [2023-11-29 02:12:00,010 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 365 transitions. Word has length 57 [2023-11-29 02:12:00,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:00,010 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 365 transitions. [2023-11-29 02:12:00,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:12:00,011 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 365 transitions. [2023-11-29 02:12:00,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 02:12:00,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:00,012 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:00,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 02:12:00,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:00,217 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:00,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:00,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1540139494, now seen corresponding path program 1 times [2023-11-29 02:12:00,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:00,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693959279] [2023-11-29 02:12:00,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:00,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:00,224 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:00,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079375006] [2023-11-29 02:12:00,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:00,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:00,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:00,225 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:00,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 02:12:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:00,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:12:00,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:00,355 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:12:00,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:12:00,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:00,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693959279] [2023-11-29 02:12:00,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:00,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079375006] [2023-11-29 02:12:00,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079375006] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:12:00,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:12:00,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 02:12:00,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073758716] [2023-11-29 02:12:00,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:00,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:12:00,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:00,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:12:00,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:12:00,486 INFO L87 Difference]: Start difference. First operand 282 states and 365 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 02:12:02,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:02,242 INFO L93 Difference]: Finished difference Result 359 states and 413 transitions. [2023-11-29 02:12:02,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:12:02,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 58 [2023-11-29 02:12:02,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:02,244 INFO L225 Difference]: With dead ends: 359 [2023-11-29 02:12:02,244 INFO L226 Difference]: Without dead ends: 357 [2023-11-29 02:12:02,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:12:02,245 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 592 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:02,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 491 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 02:12:02,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-29 02:12:02,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 288. [2023-11-29 02:12:02,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 204 states have (on average 1.6323529411764706) internal successors, (333), 265 states have internal predecessors, (333), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:12:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 373 transitions. [2023-11-29 02:12:02,259 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 373 transitions. Word has length 58 [2023-11-29 02:12:02,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:02,259 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 373 transitions. [2023-11-29 02:12:02,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 02:12:02,260 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 373 transitions. [2023-11-29 02:12:02,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 02:12:02,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:02,260 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:02,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 02:12:02,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 02:12:02,460 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:02,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:02,461 INFO L85 PathProgramCache]: Analyzing trace with hash 499684166, now seen corresponding path program 1 times [2023-11-29 02:12:02,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:02,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339019903] [2023-11-29 02:12:02,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:02,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:02,468 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:02,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937266900] [2023-11-29 02:12:02,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:02,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:02,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:02,469 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:02,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 02:12:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:02,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:12:02,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:02,604 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:12:02,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:02,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:02,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339019903] [2023-11-29 02:12:02,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:02,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937266900] [2023-11-29 02:12:02,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937266900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:02,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:02,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:12:02,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127731070] [2023-11-29 02:12:02,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:02,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:12:02,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:02,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:12:02,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:02,606 INFO L87 Difference]: Start difference. First operand 288 states and 373 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:12:02,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:02,992 INFO L93 Difference]: Finished difference Result 331 states and 390 transitions. [2023-11-29 02:12:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:12:02,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2023-11-29 02:12:02,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:02,995 INFO L225 Difference]: With dead ends: 331 [2023-11-29 02:12:02,995 INFO L226 Difference]: Without dead ends: 329 [2023-11-29 02:12:02,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:02,996 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 276 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:02,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 167 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:12:02,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-29 02:12:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 288. [2023-11-29 02:12:03,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 204 states have (on average 1.6127450980392157) internal successors, (329), 265 states have internal predecessors, (329), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:12:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 369 transitions. [2023-11-29 02:12:03,012 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 369 transitions. Word has length 59 [2023-11-29 02:12:03,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:03,013 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 369 transitions. [2023-11-29 02:12:03,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:12:03,013 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 369 transitions. [2023-11-29 02:12:03,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 02:12:03,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:03,014 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:03,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 02:12:03,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 02:12:03,214 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:03,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:03,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1689659928, now seen corresponding path program 1 times [2023-11-29 02:12:03,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:03,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397827068] [2023-11-29 02:12:03,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:03,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:03,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:03,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1414866420] [2023-11-29 02:12:03,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:03,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:03,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:03,221 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:03,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 02:12:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:03,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:12:03,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:03,417 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:12:03,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:03,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:03,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397827068] [2023-11-29 02:12:03,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:03,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414866420] [2023-11-29 02:12:03,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414866420] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:12:03,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:12:03,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 02:12:03,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752557365] [2023-11-29 02:12:03,469 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:03,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:12:03,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:03,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:12:03,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:12:03,470 INFO L87 Difference]: Start difference. First operand 288 states and 369 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:12:04,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:04,381 INFO L93 Difference]: Finished difference Result 321 states and 378 transitions. [2023-11-29 02:12:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:12:04,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2023-11-29 02:12:04,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:04,383 INFO L225 Difference]: With dead ends: 321 [2023-11-29 02:12:04,383 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 02:12:04,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:12:04,384 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 194 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:04,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 299 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:12:04,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 02:12:04,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 291. [2023-11-29 02:12:04,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.5748792270531402) internal successors, (326), 268 states have internal predecessors, (326), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:12:04,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 366 transitions. [2023-11-29 02:12:04,395 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 366 transitions. Word has length 60 [2023-11-29 02:12:04,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:04,395 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 366 transitions. [2023-11-29 02:12:04,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:12:04,395 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 366 transitions. [2023-11-29 02:12:04,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 02:12:04,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:04,396 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:04,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 02:12:04,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 02:12:04,596 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:04,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:04,597 INFO L85 PathProgramCache]: Analyzing trace with hash -839850104, now seen corresponding path program 1 times [2023-11-29 02:12:04,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:04,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788005546] [2023-11-29 02:12:04,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:04,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:04,603 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:04,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [946947459] [2023-11-29 02:12:04,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:04,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:04,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:04,604 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:04,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 02:12:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:04,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:12:04,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:04,851 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 02:12:04,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:05,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:05,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788005546] [2023-11-29 02:12:05,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:05,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946947459] [2023-11-29 02:12:05,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946947459] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:12:05,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:12:05,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:12:05,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565467211] [2023-11-29 02:12:05,257 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:05,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:12:05,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:05,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:12:05,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:12:05,258 INFO L87 Difference]: Start difference. First operand 291 states and 366 transitions. Second operand has 10 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:12:07,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:07,941 INFO L93 Difference]: Finished difference Result 316 states and 370 transitions. [2023-11-29 02:12:07,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:12:07,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 61 [2023-11-29 02:12:07,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:07,943 INFO L225 Difference]: With dead ends: 316 [2023-11-29 02:12:07,943 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 02:12:07,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:12:07,944 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 396 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:07,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 529 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 02:12:07,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 02:12:07,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 291. [2023-11-29 02:12:07,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.565217391304348) internal successors, (324), 268 states have internal predecessors, (324), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:12:07,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 364 transitions. [2023-11-29 02:12:07,967 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 364 transitions. Word has length 61 [2023-11-29 02:12:07,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:07,968 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 364 transitions. [2023-11-29 02:12:07,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:12:07,968 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 364 transitions. [2023-11-29 02:12:07,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 02:12:07,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:07,969 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:07,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 02:12:08,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 02:12:08,169 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:08,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:08,170 INFO L85 PathProgramCache]: Analyzing trace with hash 29219433, now seen corresponding path program 1 times [2023-11-29 02:12:08,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:08,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148826300] [2023-11-29 02:12:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:08,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:08,177 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:08,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960922161] [2023-11-29 02:12:08,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:08,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:08,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:08,179 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:08,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 02:12:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:08,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:12:08,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 02:12:08,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:08,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:08,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148826300] [2023-11-29 02:12:08,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:08,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960922161] [2023-11-29 02:12:08,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960922161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:08,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:08,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:12:08,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778664354] [2023-11-29 02:12:08,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:08,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:12:08,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:08,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:12:08,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:08,376 INFO L87 Difference]: Start difference. First operand 291 states and 364 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:12:08,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:08,502 INFO L93 Difference]: Finished difference Result 323 states and 376 transitions. [2023-11-29 02:12:08,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:12:08,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2023-11-29 02:12:08,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:08,504 INFO L225 Difference]: With dead ends: 323 [2023-11-29 02:12:08,504 INFO L226 Difference]: Without dead ends: 322 [2023-11-29 02:12:08,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:08,505 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 116 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:08,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 234 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:12:08,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-29 02:12:08,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 291. [2023-11-29 02:12:08,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.5555555555555556) internal successors, (322), 268 states have internal predecessors, (322), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:12:08,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 362 transitions. [2023-11-29 02:12:08,523 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 362 transitions. Word has length 69 [2023-11-29 02:12:08,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:08,523 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 362 transitions. [2023-11-29 02:12:08,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:12:08,524 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 362 transitions. [2023-11-29 02:12:08,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 02:12:08,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:08,525 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:08,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 02:12:08,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 02:12:08,731 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:08,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:08,731 INFO L85 PathProgramCache]: Analyzing trace with hash 905802544, now seen corresponding path program 1 times [2023-11-29 02:12:08,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:08,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834829837] [2023-11-29 02:12:08,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:08,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:08,738 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:08,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043308735] [2023-11-29 02:12:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:08,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:08,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:08,739 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:08,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 02:12:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:08,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:12:08,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 02:12:08,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:08,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:08,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834829837] [2023-11-29 02:12:08,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:08,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043308735] [2023-11-29 02:12:08,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043308735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:08,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:08,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:12:08,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238416425] [2023-11-29 02:12:08,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:08,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:12:08,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:12:08,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:12:08,892 INFO L87 Difference]: Start difference. First operand 291 states and 362 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:12:09,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:09,053 INFO L93 Difference]: Finished difference Result 322 states and 374 transitions. [2023-11-29 02:12:09,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:12:09,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2023-11-29 02:12:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:09,055 INFO L225 Difference]: With dead ends: 322 [2023-11-29 02:12:09,055 INFO L226 Difference]: Without dead ends: 321 [2023-11-29 02:12:09,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:12:09,056 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 58 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:09,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 561 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:12:09,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-11-29 02:12:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 291. [2023-11-29 02:12:09,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.5458937198067633) internal successors, (320), 268 states have internal predecessors, (320), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:12:09,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 360 transitions. [2023-11-29 02:12:09,074 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 360 transitions. Word has length 70 [2023-11-29 02:12:09,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:09,074 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 360 transitions. [2023-11-29 02:12:09,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:12:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 360 transitions. [2023-11-29 02:12:09,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 02:12:09,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:09,075 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:09,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 02:12:09,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 02:12:09,276 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:09,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:09,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1984892085, now seen corresponding path program 1 times [2023-11-29 02:12:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:09,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964137741] [2023-11-29 02:12:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:09,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:09,290 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:09,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285037305] [2023-11-29 02:12:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:09,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:09,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:09,292 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:09,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 02:12:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:09,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:12:09,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:09,380 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 02:12:09,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:09,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:09,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964137741] [2023-11-29 02:12:09,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:09,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285037305] [2023-11-29 02:12:09,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285037305] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:09,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:09,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:12:09,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132005427] [2023-11-29 02:12:09,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:09,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:12:09,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:09,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:12:09,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:09,381 INFO L87 Difference]: Start difference. First operand 291 states and 360 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:12:10,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:10,398 INFO L93 Difference]: Finished difference Result 313 states and 364 transitions. [2023-11-29 02:12:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:12:10,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2023-11-29 02:12:10,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:10,401 INFO L225 Difference]: With dead ends: 313 [2023-11-29 02:12:10,401 INFO L226 Difference]: Without dead ends: 311 [2023-11-29 02:12:10,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:10,402 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 67 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:10,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 341 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:12:10,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-29 02:12:10,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 291. [2023-11-29 02:12:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.5265700483091786) internal successors, (316), 268 states have internal predecessors, (316), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:12:10,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 356 transitions. [2023-11-29 02:12:10,420 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 356 transitions. Word has length 71 [2023-11-29 02:12:10,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:10,421 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 356 transitions. [2023-11-29 02:12:10,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:12:10,421 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 356 transitions. [2023-11-29 02:12:10,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 02:12:10,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:10,422 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:10,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 02:12:10,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 02:12:10,622 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:10,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:10,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1402112366, now seen corresponding path program 1 times [2023-11-29 02:12:10,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:10,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429932495] [2023-11-29 02:12:10,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:10,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:10,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:10,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144665088] [2023-11-29 02:12:10,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:10,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:10,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:10,632 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:10,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 02:12:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:10,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:12:10,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:10,742 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 02:12:10,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:10,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:10,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429932495] [2023-11-29 02:12:10,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:10,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144665088] [2023-11-29 02:12:10,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144665088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:10,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:10,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:12:10,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791343942] [2023-11-29 02:12:10,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:10,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:12:10,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:10,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:12:10,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:10,744 INFO L87 Difference]: Start difference. First operand 291 states and 356 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:12:11,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:11,999 INFO L93 Difference]: Finished difference Result 311 states and 360 transitions. [2023-11-29 02:12:11,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:12:11,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2023-11-29 02:12:12,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:12,001 INFO L225 Difference]: With dead ends: 311 [2023-11-29 02:12:12,001 INFO L226 Difference]: Without dead ends: 309 [2023-11-29 02:12:12,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:12,002 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 65 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:12,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 344 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:12:12,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-29 02:12:12,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 291. [2023-11-29 02:12:12,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.5072463768115942) internal successors, (312), 268 states have internal predecessors, (312), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:12:12,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 352 transitions. [2023-11-29 02:12:12,020 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 352 transitions. Word has length 72 [2023-11-29 02:12:12,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:12,020 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 352 transitions. [2023-11-29 02:12:12,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:12:12,020 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 352 transitions. [2023-11-29 02:12:12,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 02:12:12,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:12,021 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:12,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-29 02:12:12,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 02:12:12,221 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:12,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:12,222 INFO L85 PathProgramCache]: Analyzing trace with hash 291086520, now seen corresponding path program 1 times [2023-11-29 02:12:12,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:12,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971947453] [2023-11-29 02:12:12,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:12,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:12,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:12,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132219220] [2023-11-29 02:12:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:12,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:12,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:12,230 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:12,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 02:12:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:12,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:12:12,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:12,508 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 02:12:12,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 02:12:12,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:12,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971947453] [2023-11-29 02:12:12,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:12,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132219220] [2023-11-29 02:12:12,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132219220] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:12:12,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:12:12,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 02:12:12,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594599246] [2023-11-29 02:12:12,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:12,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:12:12,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:12,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:12:12,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:12:12,833 INFO L87 Difference]: Start difference. First operand 291 states and 352 transitions. Second operand has 11 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 02:12:15,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:15,921 INFO L93 Difference]: Finished difference Result 362 states and 396 transitions. [2023-11-29 02:12:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:12:15,921 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 78 [2023-11-29 02:12:15,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:15,923 INFO L225 Difference]: With dead ends: 362 [2023-11-29 02:12:15,923 INFO L226 Difference]: Without dead ends: 361 [2023-11-29 02:12:15,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:12:15,924 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 277 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:15,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 422 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 02:12:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-29 02:12:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 307. [2023-11-29 02:12:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 222 states have (on average 1.527027027027027) internal successors, (339), 283 states have internal predecessors, (339), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 02:12:15,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 381 transitions. [2023-11-29 02:12:15,938 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 381 transitions. Word has length 78 [2023-11-29 02:12:15,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:15,938 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 381 transitions. [2023-11-29 02:12:15,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 02:12:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 381 transitions. [2023-11-29 02:12:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 02:12:15,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:15,939 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:15,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 02:12:16,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:16,139 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:16,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:16,139 INFO L85 PathProgramCache]: Analyzing trace with hash 433747667, now seen corresponding path program 1 times [2023-11-29 02:12:16,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:16,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816703534] [2023-11-29 02:12:16,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:16,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:16,146 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:16,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [896666322] [2023-11-29 02:12:16,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:16,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:16,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:16,147 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:16,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 02:12:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:16,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:12:16,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:12:16,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:21,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:21,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816703534] [2023-11-29 02:12:21,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:21,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896666322] [2023-11-29 02:12:21,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896666322] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:12:21,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:12:21,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:12:21,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267216389] [2023-11-29 02:12:21,133 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:21,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:12:21,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:12:21,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2023-11-29 02:12:21,134 INFO L87 Difference]: Start difference. First operand 307 states and 381 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:12:24,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:24,786 INFO L93 Difference]: Finished difference Result 324 states and 385 transitions. [2023-11-29 02:12:24,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:12:24,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 79 [2023-11-29 02:12:24,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:24,788 INFO L225 Difference]: With dead ends: 324 [2023-11-29 02:12:24,788 INFO L226 Difference]: Without dead ends: 321 [2023-11-29 02:12:24,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=37, Invalid=94, Unknown=1, NotChecked=0, Total=132 [2023-11-29 02:12:24,788 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 256 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:24,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 393 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-29 02:12:24,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-11-29 02:12:24,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 307. [2023-11-29 02:12:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 222 states have (on average 1.5) internal successors, (333), 283 states have internal predecessors, (333), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 02:12:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 375 transitions. [2023-11-29 02:12:24,801 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 375 transitions. Word has length 79 [2023-11-29 02:12:24,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:24,801 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 375 transitions. [2023-11-29 02:12:24,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:12:24,801 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 375 transitions. [2023-11-29 02:12:24,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 02:12:24,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:24,802 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:24,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 02:12:25,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:25,002 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:25,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:25,003 INFO L85 PathProgramCache]: Analyzing trace with hash 561275930, now seen corresponding path program 1 times [2023-11-29 02:12:25,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:25,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95486078] [2023-11-29 02:12:25,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:25,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:25,009 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:25,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523394367] [2023-11-29 02:12:25,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:25,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:25,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:25,010 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:25,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 02:12:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:25,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:12:25,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 02:12:25,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:25,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:25,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95486078] [2023-11-29 02:12:25,437 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:25,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523394367] [2023-11-29 02:12:25,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523394367] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:12:25,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:12:25,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:12:25,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070116143] [2023-11-29 02:12:25,438 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:25,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:12:25,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:25,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:12:25,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:12:25,439 INFO L87 Difference]: Start difference. First operand 307 states and 375 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:12:27,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:27,765 INFO L93 Difference]: Finished difference Result 317 states and 375 transitions. [2023-11-29 02:12:27,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:12:27,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2023-11-29 02:12:27,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:27,768 INFO L225 Difference]: With dead ends: 317 [2023-11-29 02:12:27,768 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 02:12:27,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:12:27,768 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 211 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:27,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 392 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 02:12:27,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 02:12:27,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 307. [2023-11-29 02:12:27,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 222 states have (on average 1.490990990990991) internal successors, (331), 283 states have internal predecessors, (331), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 02:12:27,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 373 transitions. [2023-11-29 02:12:27,785 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 373 transitions. Word has length 80 [2023-11-29 02:12:27,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:27,785 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 373 transitions. [2023-11-29 02:12:27,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:12:27,785 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 373 transitions. [2023-11-29 02:12:27,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 02:12:27,785 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:27,785 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:27,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 02:12:27,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 02:12:27,986 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:27,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:27,986 INFO L85 PathProgramCache]: Analyzing trace with hash -900465954, now seen corresponding path program 1 times [2023-11-29 02:12:27,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:27,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689519539] [2023-11-29 02:12:27,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:27,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:27,993 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:27,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681016315] [2023-11-29 02:12:27,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:27,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:27,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:27,994 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:27,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 02:12:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:28,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:12:28,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:29,663 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 02:12:29,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:38,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:38,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689519539] [2023-11-29 02:12:38,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:38,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681016315] [2023-11-29 02:12:38,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681016315] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:12:38,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:12:38,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:12:38,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633788795] [2023-11-29 02:12:38,452 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:38,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:12:38,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:38,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:12:38,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=119, Unknown=2, NotChecked=0, Total=156 [2023-11-29 02:12:38,453 INFO L87 Difference]: Start difference. First operand 307 states and 373 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:12:40,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:40,998 INFO L93 Difference]: Finished difference Result 318 states and 375 transitions. [2023-11-29 02:12:40,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:12:40,998 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2023-11-29 02:12:40,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:41,000 INFO L225 Difference]: With dead ends: 318 [2023-11-29 02:12:41,000 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 02:12:41,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=43, Invalid=165, Unknown=2, NotChecked=0, Total=210 [2023-11-29 02:12:41,001 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 246 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:41,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 466 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 02:12:41,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 02:12:41,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 307. [2023-11-29 02:12:41,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 222 states have (on average 1.472972972972973) internal successors, (327), 283 states have internal predecessors, (327), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 02:12:41,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 369 transitions. [2023-11-29 02:12:41,015 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 369 transitions. Word has length 84 [2023-11-29 02:12:41,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:41,015 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 369 transitions. [2023-11-29 02:12:41,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:12:41,015 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 369 transitions. [2023-11-29 02:12:41,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 02:12:41,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:41,016 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:41,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 02:12:41,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:41,217 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:41,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:41,217 INFO L85 PathProgramCache]: Analyzing trace with hash -2100544102, now seen corresponding path program 1 times [2023-11-29 02:12:41,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:41,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132159454] [2023-11-29 02:12:41,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:41,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:41,225 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:41,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891599745] [2023-11-29 02:12:41,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:41,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:41,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:41,226 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:41,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 02:12:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:41,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:12:41,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:41,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:41,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:41,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132159454] [2023-11-29 02:12:41,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:41,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891599745] [2023-11-29 02:12:41,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891599745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:41,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:41,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:12:41,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235823222] [2023-11-29 02:12:41,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:41,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:12:41,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:41,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:12:41,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:12:41,293 INFO L87 Difference]: Start difference. First operand 307 states and 369 transitions. Second operand has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 02:12:41,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:41,344 INFO L93 Difference]: Finished difference Result 307 states and 369 transitions. [2023-11-29 02:12:41,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:12:41,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 93 [2023-11-29 02:12:41,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:41,346 INFO L225 Difference]: With dead ends: 307 [2023-11-29 02:12:41,346 INFO L226 Difference]: Without dead ends: 306 [2023-11-29 02:12:41,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:12:41,347 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 48 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:41,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 251 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:12:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-11-29 02:12:41,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-11-29 02:12:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 222 states have (on average 1.4594594594594594) internal successors, (324), 282 states have internal predecessors, (324), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 02:12:41,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 366 transitions. [2023-11-29 02:12:41,361 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 366 transitions. Word has length 93 [2023-11-29 02:12:41,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:41,361 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 366 transitions. [2023-11-29 02:12:41,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 02:12:41,361 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 366 transitions. [2023-11-29 02:12:41,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 02:12:41,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:41,362 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:41,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 02:12:41,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:41,562 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:41,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:41,563 INFO L85 PathProgramCache]: Analyzing trace with hash 362782761, now seen corresponding path program 1 times [2023-11-29 02:12:41,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:41,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574709721] [2023-11-29 02:12:41,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:41,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:41,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:41,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823599665] [2023-11-29 02:12:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:41,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:41,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:41,572 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:41,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 02:12:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:41,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:12:41,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:41,689 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:41,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:41,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:41,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574709721] [2023-11-29 02:12:41,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:41,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823599665] [2023-11-29 02:12:41,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823599665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:41,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:41,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:12:41,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123393800] [2023-11-29 02:12:41,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:41,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:12:41,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:41,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:12:41,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:12:41,691 INFO L87 Difference]: Start difference. First operand 306 states and 366 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 02:12:41,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:41,930 INFO L93 Difference]: Finished difference Result 316 states and 370 transitions. [2023-11-29 02:12:41,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:12:41,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 96 [2023-11-29 02:12:41,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:41,932 INFO L225 Difference]: With dead ends: 316 [2023-11-29 02:12:41,932 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 02:12:41,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:12:41,933 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 14 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:41,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 531 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:12:41,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 02:12:41,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 307. [2023-11-29 02:12:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 223 states have (on average 1.4573991031390134) internal successors, (325), 283 states have internal predecessors, (325), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 02:12:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 367 transitions. [2023-11-29 02:12:41,947 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 367 transitions. Word has length 96 [2023-11-29 02:12:41,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:41,947 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 367 transitions. [2023-11-29 02:12:41,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 02:12:41,947 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 367 transitions. [2023-11-29 02:12:41,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 02:12:41,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:41,948 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:41,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 02:12:42,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 02:12:42,149 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:42,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:42,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1638636118, now seen corresponding path program 1 times [2023-11-29 02:12:42,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:42,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960538863] [2023-11-29 02:12:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:42,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:42,156 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:42,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250814401] [2023-11-29 02:12:42,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:42,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:42,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:42,158 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:42,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 02:12:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:42,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:12:42,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:42,362 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:42,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:42,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:42,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960538863] [2023-11-29 02:12:42,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:42,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250814401] [2023-11-29 02:12:42,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250814401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:42,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:42,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:12:42,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047138487] [2023-11-29 02:12:42,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:42,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:12:42,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:42,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:12:42,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:42,364 INFO L87 Difference]: Start difference. First operand 307 states and 367 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 02:12:43,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:43,121 INFO L93 Difference]: Finished difference Result 315 states and 369 transitions. [2023-11-29 02:12:43,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:12:43,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 97 [2023-11-29 02:12:43,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:43,123 INFO L225 Difference]: With dead ends: 315 [2023-11-29 02:12:43,123 INFO L226 Difference]: Without dead ends: 314 [2023-11-29 02:12:43,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:12:43,123 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 15 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:43,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 319 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:12:43,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-29 02:12:43,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 308. [2023-11-29 02:12:43,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 224 states have (on average 1.4553571428571428) internal successors, (326), 284 states have internal predecessors, (326), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 02:12:43,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 368 transitions. [2023-11-29 02:12:43,138 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 368 transitions. Word has length 97 [2023-11-29 02:12:43,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:43,138 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 368 transitions. [2023-11-29 02:12:43,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 02:12:43,138 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 368 transitions. [2023-11-29 02:12:43,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 02:12:43,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:43,139 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:43,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 02:12:43,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 02:12:43,341 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:43,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:43,341 INFO L85 PathProgramCache]: Analyzing trace with hash 741888075, now seen corresponding path program 1 times [2023-11-29 02:12:43,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:43,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285685593] [2023-11-29 02:12:43,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:43,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:43,348 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:43,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887122642] [2023-11-29 02:12:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:43,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:43,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:43,350 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:43,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 02:12:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:43,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:12:43,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:43,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:43,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:43,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285685593] [2023-11-29 02:12:43,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:43,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887122642] [2023-11-29 02:12:43,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887122642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:43,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:43,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:12:43,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393907860] [2023-11-29 02:12:43,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:43,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:12:43,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:43,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:12:43,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:43,538 INFO L87 Difference]: Start difference. First operand 308 states and 368 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:12:43,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:43,623 INFO L93 Difference]: Finished difference Result 322 states and 376 transitions. [2023-11-29 02:12:43,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:12:43,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2023-11-29 02:12:43,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:43,625 INFO L225 Difference]: With dead ends: 322 [2023-11-29 02:12:43,625 INFO L226 Difference]: Without dead ends: 321 [2023-11-29 02:12:43,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:43,626 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 43 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:43,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 228 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:12:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-11-29 02:12:43,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 309. [2023-11-29 02:12:43,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 225 states have (on average 1.4533333333333334) internal successors, (327), 285 states have internal predecessors, (327), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 02:12:43,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 369 transitions. [2023-11-29 02:12:43,648 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 369 transitions. Word has length 98 [2023-11-29 02:12:43,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:43,649 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 369 transitions. [2023-11-29 02:12:43,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:12:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 369 transitions. [2023-11-29 02:12:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 02:12:43,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:43,650 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:43,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 02:12:43,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:43,850 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:43,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:43,851 INFO L85 PathProgramCache]: Analyzing trace with hash 133311324, now seen corresponding path program 1 times [2023-11-29 02:12:43,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:43,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473187740] [2023-11-29 02:12:43,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:43,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:43,858 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:43,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1913754157] [2023-11-29 02:12:43,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:43,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:43,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:43,859 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:43,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 02:12:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:43,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:12:43,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:43,981 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:43,981 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:44,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:44,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473187740] [2023-11-29 02:12:44,061 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:44,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913754157] [2023-11-29 02:12:44,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913754157] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:12:44,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:12:44,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 02:12:44,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627332152] [2023-11-29 02:12:44,062 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:44,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:12:44,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:44,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:12:44,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:12:44,063 INFO L87 Difference]: Start difference. First operand 309 states and 369 transitions. Second operand has 12 states, 11 states have (on average 10.818181818181818) internal successors, (119), 12 states have internal predecessors, (119), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 02:12:44,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:44,288 INFO L93 Difference]: Finished difference Result 736 states and 804 transitions. [2023-11-29 02:12:44,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:12:44,289 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.818181818181818) internal successors, (119), 12 states have internal predecessors, (119), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2023-11-29 02:12:44,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:44,291 INFO L225 Difference]: With dead ends: 736 [2023-11-29 02:12:44,292 INFO L226 Difference]: Without dead ends: 735 [2023-11-29 02:12:44,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:12:44,293 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 496 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:44,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1011 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:12:44,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2023-11-29 02:12:44,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 537. [2023-11-29 02:12:44,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 433 states have (on average 1.4549653579676673) internal successors, (630), 493 states have internal predecessors, (630), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 02:12:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 706 transitions. [2023-11-29 02:12:44,321 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 706 transitions. Word has length 99 [2023-11-29 02:12:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:44,322 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 706 transitions. [2023-11-29 02:12:44,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.818181818181818) internal successors, (119), 12 states have internal predecessors, (119), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 02:12:44,322 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 706 transitions. [2023-11-29 02:12:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 02:12:44,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:44,323 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:44,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 02:12:44,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 02:12:44,523 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:44,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1523694028, now seen corresponding path program 1 times [2023-11-29 02:12:44,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:44,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886112621] [2023-11-29 02:12:44,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:44,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:44,530 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:44,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083882738] [2023-11-29 02:12:44,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:44,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:44,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:44,531 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:44,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 02:12:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:44,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:12:44,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:44,717 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:44,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:44,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:44,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886112621] [2023-11-29 02:12:44,717 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:44,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083882738] [2023-11-29 02:12:44,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083882738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:44,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:44,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:12:44,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345602528] [2023-11-29 02:12:44,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:44,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:12:44,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:44,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:12:44,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:44,719 INFO L87 Difference]: Start difference. First operand 537 states and 706 transitions. Second operand has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:12:44,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:44,875 INFO L93 Difference]: Finished difference Result 561 states and 724 transitions. [2023-11-29 02:12:44,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:12:44,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 99 [2023-11-29 02:12:44,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:44,878 INFO L225 Difference]: With dead ends: 561 [2023-11-29 02:12:44,878 INFO L226 Difference]: Without dead ends: 560 [2023-11-29 02:12:44,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:12:44,879 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 81 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:44,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 312 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:12:44,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-11-29 02:12:44,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 544. [2023-11-29 02:12:44,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 440 states have (on average 1.4477272727272728) internal successors, (637), 500 states have internal predecessors, (637), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 02:12:44,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 713 transitions. [2023-11-29 02:12:44,913 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 713 transitions. Word has length 99 [2023-11-29 02:12:44,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:44,913 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 713 transitions. [2023-11-29 02:12:44,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:12:44,913 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 713 transitions. [2023-11-29 02:12:44,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 02:12:44,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:44,914 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:44,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 02:12:45,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 02:12:45,114 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:45,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash -10125203, now seen corresponding path program 1 times [2023-11-29 02:12:45,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:45,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995014165] [2023-11-29 02:12:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:45,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:45,121 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:45,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [761494767] [2023-11-29 02:12:45,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:45,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:45,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:45,122 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:45,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 02:12:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:45,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:12:45,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:45,249 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:45,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:45,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:45,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995014165] [2023-11-29 02:12:45,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:45,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761494767] [2023-11-29 02:12:45,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761494767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:45,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:45,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:12:45,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354788522] [2023-11-29 02:12:45,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:45,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:12:45,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:45,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:12:45,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:12:45,251 INFO L87 Difference]: Start difference. First operand 544 states and 713 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 02:12:45,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:45,420 INFO L93 Difference]: Finished difference Result 556 states and 719 transitions. [2023-11-29 02:12:45,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:12:45,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 100 [2023-11-29 02:12:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:45,422 INFO L225 Difference]: With dead ends: 556 [2023-11-29 02:12:45,422 INFO L226 Difference]: Without dead ends: 555 [2023-11-29 02:12:45,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:12:45,423 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 17 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:45,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 442 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:12:45,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-11-29 02:12:45,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 546. [2023-11-29 02:12:45,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 442 states have (on average 1.4479638009049773) internal successors, (640), 502 states have internal predecessors, (640), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 02:12:45,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 716 transitions. [2023-11-29 02:12:45,453 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 716 transitions. Word has length 100 [2023-11-29 02:12:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:45,454 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 716 transitions. [2023-11-29 02:12:45,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 02:12:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 716 transitions. [2023-11-29 02:12:45,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 02:12:45,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:45,454 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:45,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 02:12:45,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 02:12:45,655 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:45,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:45,655 INFO L85 PathProgramCache]: Analyzing trace with hash -313881106, now seen corresponding path program 1 times [2023-11-29 02:12:45,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:45,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652537528] [2023-11-29 02:12:45,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:45,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:45,664 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:45,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061018042] [2023-11-29 02:12:45,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:45,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:45,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:45,665 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:45,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 02:12:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:45,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:12:45,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:45,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:45,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:45,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652537528] [2023-11-29 02:12:45,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:45,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061018042] [2023-11-29 02:12:45,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061018042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:45,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:45,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:12:45,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74627479] [2023-11-29 02:12:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:45,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:12:45,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:45,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:12:45,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:12:45,956 INFO L87 Difference]: Start difference. First operand 546 states and 716 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:12:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:46,435 INFO L93 Difference]: Finished difference Result 555 states and 718 transitions. [2023-11-29 02:12:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:12:46,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 101 [2023-11-29 02:12:46,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:46,438 INFO L225 Difference]: With dead ends: 555 [2023-11-29 02:12:46,438 INFO L226 Difference]: Without dead ends: 554 [2023-11-29 02:12:46,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:12:46,439 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 20 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:46,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 359 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:12:46,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-29 02:12:46,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 547. [2023-11-29 02:12:46,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.4469525959367946) internal successors, (641), 503 states have internal predecessors, (641), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 02:12:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 717 transitions. [2023-11-29 02:12:46,465 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 717 transitions. Word has length 101 [2023-11-29 02:12:46,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:46,465 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 717 transitions. [2023-11-29 02:12:46,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:12:46,466 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 717 transitions. [2023-11-29 02:12:46,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 02:12:46,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:46,466 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:46,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 02:12:46,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:46,667 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:46,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:46,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1367017996, now seen corresponding path program 1 times [2023-11-29 02:12:46,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:46,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747365354] [2023-11-29 02:12:46,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:46,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:46,674 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:46,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [788693234] [2023-11-29 02:12:46,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:46,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:46,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:46,676 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:46,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 02:12:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:46,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:12:46,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:47,012 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 02:12:47,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:47,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:47,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747365354] [2023-11-29 02:12:47,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:47,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788693234] [2023-11-29 02:12:47,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788693234] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:12:47,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:12:47,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:12:47,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468216225] [2023-11-29 02:12:47,231 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:47,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:12:47,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:47,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:12:47,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:12:47,233 INFO L87 Difference]: Start difference. First operand 547 states and 717 transitions. Second operand has 10 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:12:48,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:48,409 INFO L93 Difference]: Finished difference Result 559 states and 718 transitions. [2023-11-29 02:12:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:12:48,410 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 102 [2023-11-29 02:12:48,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:48,413 INFO L225 Difference]: With dead ends: 559 [2023-11-29 02:12:48,413 INFO L226 Difference]: Without dead ends: 557 [2023-11-29 02:12:48,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:12:48,414 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 451 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:48,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 438 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:12:48,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-29 02:12:48,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 547. [2023-11-29 02:12:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.4424379232505644) internal successors, (639), 503 states have internal predecessors, (639), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 02:12:48,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 715 transitions. [2023-11-29 02:12:48,444 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 715 transitions. Word has length 102 [2023-11-29 02:12:48,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:48,444 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 715 transitions. [2023-11-29 02:12:48,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:12:48,445 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 715 transitions. [2023-11-29 02:12:48,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 02:12:48,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:48,445 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:48,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-29 02:12:48,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:48,646 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:48,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:48,646 INFO L85 PathProgramCache]: Analyzing trace with hash 572115168, now seen corresponding path program 1 times [2023-11-29 02:12:48,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:48,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044312528] [2023-11-29 02:12:48,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:48,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:48,654 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:48,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699174002] [2023-11-29 02:12:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:48,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:48,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:48,655 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:48,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 02:12:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:48,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:12:48,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:48,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:48,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:48,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044312528] [2023-11-29 02:12:48,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:48,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699174002] [2023-11-29 02:12:48,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699174002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:48,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:48,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:12:48,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958146427] [2023-11-29 02:12:48,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:48,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:12:48,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:48,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:12:48,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:12:48,753 INFO L87 Difference]: Start difference. First operand 547 states and 715 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 02:12:49,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:49,071 INFO L93 Difference]: Finished difference Result 650 states and 780 transitions. [2023-11-29 02:12:49,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:12:49,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 103 [2023-11-29 02:12:49,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:49,075 INFO L225 Difference]: With dead ends: 650 [2023-11-29 02:12:49,075 INFO L226 Difference]: Without dead ends: 649 [2023-11-29 02:12:49,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:12:49,076 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 297 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:49,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 580 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:12:49,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-11-29 02:12:49,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 547. [2023-11-29 02:12:49,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.4288939051918736) internal successors, (633), 503 states have internal predecessors, (633), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 02:12:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 709 transitions. [2023-11-29 02:12:49,115 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 709 transitions. Word has length 103 [2023-11-29 02:12:49,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:49,116 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 709 transitions. [2023-11-29 02:12:49,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 02:12:49,116 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 709 transitions. [2023-11-29 02:12:49,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 02:12:49,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:49,117 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:49,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 02:12:49,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:49,317 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:49,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:49,317 INFO L85 PathProgramCache]: Analyzing trace with hash 555701110, now seen corresponding path program 1 times [2023-11-29 02:12:49,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:49,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255028791] [2023-11-29 02:12:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:49,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:49,325 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:49,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630027702] [2023-11-29 02:12:49,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:49,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:49,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:49,326 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:49,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 02:12:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:49,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:12:49,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:49,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:49,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:49,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255028791] [2023-11-29 02:12:49,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:49,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630027702] [2023-11-29 02:12:49,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630027702] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:12:49,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:12:49,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:12:49,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888812594] [2023-11-29 02:12:49,620 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:49,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:12:49,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:49,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:12:49,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:12:49,622 INFO L87 Difference]: Start difference. First operand 547 states and 709 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:12:50,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:50,096 INFO L93 Difference]: Finished difference Result 613 states and 770 transitions. [2023-11-29 02:12:50,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:12:50,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 104 [2023-11-29 02:12:50,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:50,099 INFO L225 Difference]: With dead ends: 613 [2023-11-29 02:12:50,099 INFO L226 Difference]: Without dead ends: 612 [2023-11-29 02:12:50,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:12:50,099 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 534 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:50,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 482 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:12:50,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-11-29 02:12:50,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 547. [2023-11-29 02:12:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.4266365688487586) internal successors, (632), 503 states have internal predecessors, (632), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 02:12:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 708 transitions. [2023-11-29 02:12:50,127 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 708 transitions. Word has length 104 [2023-11-29 02:12:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:50,128 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 708 transitions. [2023-11-29 02:12:50,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:12:50,128 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 708 transitions. [2023-11-29 02:12:50,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 02:12:50,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:50,128 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:50,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 02:12:50,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 02:12:50,329 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:50,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:50,329 INFO L85 PathProgramCache]: Analyzing trace with hash -688175738, now seen corresponding path program 1 times [2023-11-29 02:12:50,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:50,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217927402] [2023-11-29 02:12:50,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:50,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:50,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:50,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007972836] [2023-11-29 02:12:50,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:50,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:50,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:50,336 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:50,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 02:12:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:50,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:12:50,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:50,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:50,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:50,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217927402] [2023-11-29 02:12:50,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:50,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007972836] [2023-11-29 02:12:50,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007972836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:50,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:50,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:12:50,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935678248] [2023-11-29 02:12:50,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:50,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:12:50,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:50,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:12:50,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:12:50,470 INFO L87 Difference]: Start difference. First operand 547 states and 708 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 02:12:50,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:50,604 INFO L93 Difference]: Finished difference Result 621 states and 744 transitions. [2023-11-29 02:12:50,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:12:50,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 104 [2023-11-29 02:12:50,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:50,608 INFO L225 Difference]: With dead ends: 621 [2023-11-29 02:12:50,608 INFO L226 Difference]: Without dead ends: 620 [2023-11-29 02:12:50,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:12:50,609 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 148 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:50,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 944 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:12:50,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-11-29 02:12:50,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 561. [2023-11-29 02:12:50,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 457 states have (on average 1.4310722100656454) internal successors, (654), 517 states have internal predecessors, (654), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 02:12:50,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 730 transitions. [2023-11-29 02:12:50,641 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 730 transitions. Word has length 104 [2023-11-29 02:12:50,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:50,642 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 730 transitions. [2023-11-29 02:12:50,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 02:12:50,642 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 730 transitions. [2023-11-29 02:12:50,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 02:12:50,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:50,643 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:50,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 02:12:50,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 02:12:50,843 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:50,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:50,844 INFO L85 PathProgramCache]: Analyzing trace with hash 88081325, now seen corresponding path program 1 times [2023-11-29 02:12:50,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:50,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33054705] [2023-11-29 02:12:50,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:50,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:50,850 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:50,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654100353] [2023-11-29 02:12:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:50,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:50,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:50,851 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:50,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 02:12:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:50,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:12:50,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:51,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:12:51,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:51,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33054705] [2023-11-29 02:12:51,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:51,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654100353] [2023-11-29 02:12:51,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654100353] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:12:51,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:12:51,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-29 02:12:51,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590375969] [2023-11-29 02:12:51,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:51,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:12:51,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:51,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:12:51,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:12:51,172 INFO L87 Difference]: Start difference. First operand 561 states and 730 transitions. Second operand has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 02:12:51,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:51,363 INFO L93 Difference]: Finished difference Result 1064 states and 1373 transitions. [2023-11-29 02:12:51,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:12:51,363 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 106 [2023-11-29 02:12:51,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:51,367 INFO L225 Difference]: With dead ends: 1064 [2023-11-29 02:12:51,367 INFO L226 Difference]: Without dead ends: 730 [2023-11-29 02:12:51,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:12:51,369 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 159 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:51,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 1151 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:12:51,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-11-29 02:12:51,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 645. [2023-11-29 02:12:51,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 534 states have (on average 1.453183520599251) internal successors, (776), 594 states have internal predecessors, (776), 42 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 02:12:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 860 transitions. [2023-11-29 02:12:51,409 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 860 transitions. Word has length 106 [2023-11-29 02:12:51,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:51,409 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 860 transitions. [2023-11-29 02:12:51,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 02:12:51,409 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 860 transitions. [2023-11-29 02:12:51,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 02:12:51,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:51,410 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:51,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 02:12:51,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 02:12:51,610 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:51,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:51,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1564448137, now seen corresponding path program 1 times [2023-11-29 02:12:51,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:51,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210068782] [2023-11-29 02:12:51,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:51,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:51,617 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:51,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1287339175] [2023-11-29 02:12:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:51,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:51,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:51,618 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:51,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 02:12:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:51,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:12:51,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 02:12:51,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 02:12:51,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:51,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210068782] [2023-11-29 02:12:51,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:51,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287339175] [2023-11-29 02:12:51,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287339175] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:12:51,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:12:51,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-11-29 02:12:51,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975103932] [2023-11-29 02:12:51,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:51,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:12:51,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:51,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:12:51,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:12:51,869 INFO L87 Difference]: Start difference. First operand 645 states and 860 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 02:12:52,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:52,660 INFO L93 Difference]: Finished difference Result 1614 states and 2150 transitions. [2023-11-29 02:12:52,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:12:52,661 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 107 [2023-11-29 02:12:52,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:52,667 INFO L225 Difference]: With dead ends: 1614 [2023-11-29 02:12:52,667 INFO L226 Difference]: Without dead ends: 1585 [2023-11-29 02:12:52,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 201 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:12:52,667 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1023 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:52,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1107 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:12:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2023-11-29 02:12:52,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 992. [2023-11-29 02:12:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 857 states have (on average 1.5775962660443408) internal successors, (1352), 917 states have internal predecessors, (1352), 66 states have call successors, (66), 9 states have call predecessors, (66), 9 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 02:12:52,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1484 transitions. [2023-11-29 02:12:52,715 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1484 transitions. Word has length 107 [2023-11-29 02:12:52,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:52,716 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1484 transitions. [2023-11-29 02:12:52,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 02:12:52,716 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1484 transitions. [2023-11-29 02:12:52,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 02:12:52,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:52,716 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:52,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 02:12:52,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 02:12:52,917 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:52,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:52,917 INFO L85 PathProgramCache]: Analyzing trace with hash 466493278, now seen corresponding path program 1 times [2023-11-29 02:12:52,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:52,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405641881] [2023-11-29 02:12:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:52,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:52,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:52,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [6299784] [2023-11-29 02:12:52,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:52,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:52,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:52,924 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:52,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 02:12:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:52,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:12:52,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:53,080 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 02:12:53,080 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:53,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:53,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405641881] [2023-11-29 02:12:53,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:53,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6299784] [2023-11-29 02:12:53,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6299784] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:12:53,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:12:53,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:12:53,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158283049] [2023-11-29 02:12:53,236 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:53,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:12:53,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:12:53,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:12:53,237 INFO L87 Difference]: Start difference. First operand 992 states and 1484 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 02:12:54,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:54,384 INFO L93 Difference]: Finished difference Result 1629 states and 2167 transitions. [2023-11-29 02:12:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:12:54,385 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 111 [2023-11-29 02:12:54,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:54,391 INFO L225 Difference]: With dead ends: 1629 [2023-11-29 02:12:54,391 INFO L226 Difference]: Without dead ends: 1626 [2023-11-29 02:12:54,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:12:54,392 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 1016 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:54,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 1054 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:12:54,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2023-11-29 02:12:54,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 992. [2023-11-29 02:12:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 857 states have (on average 1.5635939323220536) internal successors, (1340), 917 states have internal predecessors, (1340), 66 states have call successors, (66), 9 states have call predecessors, (66), 9 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 02:12:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1472 transitions. [2023-11-29 02:12:54,447 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1472 transitions. Word has length 111 [2023-11-29 02:12:54,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:54,448 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1472 transitions. [2023-11-29 02:12:54,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 02:12:54,448 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1472 transitions. [2023-11-29 02:12:54,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 02:12:54,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:54,448 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:54,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 02:12:54,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 02:12:54,649 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:12:54,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:54,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1576389812, now seen corresponding path program 1 times [2023-11-29 02:12:54,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:12:54,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257836988] [2023-11-29 02:12:54,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:54,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:12:54,657 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:12:54,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055129051] [2023-11-29 02:12:54,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:54,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:12:54,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:12:54,658 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:12:54,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 02:12:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:54,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:12:54,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:54,817 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 02:12:54,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:12:58,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:12:58,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257836988] [2023-11-29 02:12:58,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:12:58,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055129051] [2023-11-29 02:12:58,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055129051] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:12:58,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:12:58,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:12:58,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681026851] [2023-11-29 02:12:58,998 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:12:58,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:12:58,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:12:58,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:12:58,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=105, Unknown=1, NotChecked=0, Total=132 [2023-11-29 02:12:58,999 INFO L87 Difference]: Start difference. First operand 992 states and 1472 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 02:13:00,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:13:00,226 INFO L93 Difference]: Finished difference Result 1656 states and 2148 transitions. [2023-11-29 02:13:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:13:00,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 112 [2023-11-29 02:13:00,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:13:00,232 INFO L225 Difference]: With dead ends: 1656 [2023-11-29 02:13:00,232 INFO L226 Difference]: Without dead ends: 1654 [2023-11-29 02:13:00,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=126, Invalid=379, Unknown=1, NotChecked=0, Total=506 [2023-11-29 02:13:00,233 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 1120 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:13:00,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 1094 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:13:00,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2023-11-29 02:13:00,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 992. [2023-11-29 02:13:00,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 857 states have (on average 1.558926487747958) internal successors, (1336), 917 states have internal predecessors, (1336), 66 states have call successors, (66), 9 states have call predecessors, (66), 9 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 02:13:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1468 transitions. [2023-11-29 02:13:00,283 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1468 transitions. Word has length 112 [2023-11-29 02:13:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:13:00,283 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1468 transitions. [2023-11-29 02:13:00,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 02:13:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1468 transitions. [2023-11-29 02:13:00,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 02:13:00,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:13:00,285 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:13:00,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 02:13:00,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 02:13:00,485 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:13:00,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:13:00,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1212843466, now seen corresponding path program 1 times [2023-11-29 02:13:00,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:13:00,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742963512] [2023-11-29 02:13:00,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:00,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:13:00,498 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:13:00,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611555999] [2023-11-29 02:13:00,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:00,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:00,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:13:00,499 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:13:00,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 02:13:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:13:00,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:13:00,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:13:00,805 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 02:13:00,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:13:01,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:13:01,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742963512] [2023-11-29 02:13:01,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:13:01,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611555999] [2023-11-29 02:13:01,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611555999] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:13:01,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:13:01,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:13:01,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764829828] [2023-11-29 02:13:01,035 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:13:01,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:13:01,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:13:01,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:13:01,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:13:01,036 INFO L87 Difference]: Start difference. First operand 992 states and 1468 transitions. Second operand has 10 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 02:13:04,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:13:04,035 INFO L93 Difference]: Finished difference Result 1614 states and 2260 transitions. [2023-11-29 02:13:04,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:13:04,035 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 114 [2023-11-29 02:13:04,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:13:04,044 INFO L225 Difference]: With dead ends: 1614 [2023-11-29 02:13:04,045 INFO L226 Difference]: Without dead ends: 1612 [2023-11-29 02:13:04,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:13:04,046 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 1156 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:13:04,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 750 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 02:13:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2023-11-29 02:13:04,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1112. [2023-11-29 02:13:04,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 969 states have (on average 1.5810113519091846) internal successors, (1532), 1029 states have internal predecessors, (1532), 74 states have call successors, (74), 9 states have call predecessors, (74), 9 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 02:13:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1680 transitions. [2023-11-29 02:13:04,132 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1680 transitions. Word has length 114 [2023-11-29 02:13:04,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:13:04,133 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1680 transitions. [2023-11-29 02:13:04,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 02:13:04,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1680 transitions. [2023-11-29 02:13:04,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 02:13:04,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:13:04,134 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:13:04,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 02:13:04,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:04,335 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:13:04,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:13:04,335 INFO L85 PathProgramCache]: Analyzing trace with hash -223082845, now seen corresponding path program 1 times [2023-11-29 02:13:04,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:13:04,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431475542] [2023-11-29 02:13:04,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:04,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:13:04,342 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:13:04,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369970970] [2023-11-29 02:13:04,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:04,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:04,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:13:04,343 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:13:04,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 02:13:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:13:04,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:13:04,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:13:04,836 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 02:13:04,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:13:04,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:13:04,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431475542] [2023-11-29 02:13:04,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:13:04,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369970970] [2023-11-29 02:13:04,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369970970] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:13:04,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:13:04,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:13:04,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946694472] [2023-11-29 02:13:04,952 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:13:04,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:13:04,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:13:04,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:13:04,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:13:04,953 INFO L87 Difference]: Start difference. First operand 1112 states and 1680 transitions. Second operand has 10 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 02:13:06,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:13:06,974 INFO L93 Difference]: Finished difference Result 1316 states and 1952 transitions. [2023-11-29 02:13:06,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:13:06,975 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 120 [2023-11-29 02:13:06,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:13:06,982 INFO L225 Difference]: With dead ends: 1316 [2023-11-29 02:13:06,982 INFO L226 Difference]: Without dead ends: 1315 [2023-11-29 02:13:06,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:13:06,983 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 779 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:13:06,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 510 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 02:13:06,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2023-11-29 02:13:07,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1112. [2023-11-29 02:13:07,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 969 states have (on average 1.5799793601651186) internal successors, (1531), 1029 states have internal predecessors, (1531), 74 states have call successors, (74), 9 states have call predecessors, (74), 9 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 02:13:07,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1679 transitions. [2023-11-29 02:13:07,076 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1679 transitions. Word has length 120 [2023-11-29 02:13:07,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:13:07,076 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1679 transitions. [2023-11-29 02:13:07,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 02:13:07,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1679 transitions. [2023-11-29 02:13:07,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 02:13:07,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:13:07,078 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:13:07,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 02:13:07,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:07,278 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:13:07,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:13:07,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1674366488, now seen corresponding path program 1 times [2023-11-29 02:13:07,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:13:07,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133741772] [2023-11-29 02:13:07,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:07,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:13:07,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:13:07,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1543194875] [2023-11-29 02:13:07,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:07,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:07,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:13:07,289 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:13:07,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 02:13:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:13:07,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:13:07,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:13:07,873 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 02:13:07,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:13:08,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:13:08,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133741772] [2023-11-29 02:13:08,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:13:08,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543194875] [2023-11-29 02:13:08,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543194875] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:13:08,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:13:08,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:13:08,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564438590] [2023-11-29 02:13:08,299 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:13:08,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:13:08,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:13:08,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:13:08,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:13:08,300 INFO L87 Difference]: Start difference. First operand 1112 states and 1679 transitions. Second operand has 10 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 02:13:10,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:13:10,458 INFO L93 Difference]: Finished difference Result 1315 states and 1951 transitions. [2023-11-29 02:13:10,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:13:10,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 121 [2023-11-29 02:13:10,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:13:10,465 INFO L225 Difference]: With dead ends: 1315 [2023-11-29 02:13:10,466 INFO L226 Difference]: Without dead ends: 1314 [2023-11-29 02:13:10,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:13:10,474 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 718 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:13:10,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 564 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 02:13:10,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2023-11-29 02:13:10,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1112. [2023-11-29 02:13:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 969 states have (on average 1.5789473684210527) internal successors, (1530), 1029 states have internal predecessors, (1530), 74 states have call successors, (74), 9 states have call predecessors, (74), 9 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 02:13:10,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1678 transitions. [2023-11-29 02:13:10,531 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1678 transitions. Word has length 121 [2023-11-29 02:13:10,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:13:10,532 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1678 transitions. [2023-11-29 02:13:10,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 02:13:10,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1678 transitions. [2023-11-29 02:13:10,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 02:13:10,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:13:10,533 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:13:10,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2023-11-29 02:13:10,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:10,733 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:13:10,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:13:10,734 INFO L85 PathProgramCache]: Analyzing trace with hash 365753669, now seen corresponding path program 1 times [2023-11-29 02:13:10,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:13:10,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783772751] [2023-11-29 02:13:10,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:10,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:13:10,740 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:13:10,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72976223] [2023-11-29 02:13:10,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:10,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:10,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:13:10,741 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:13:10,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 02:13:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:13:10,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:13:10,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:13:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 02:13:11,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:13:11,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:13:11,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783772751] [2023-11-29 02:13:11,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:13:11,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72976223] [2023-11-29 02:13:11,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72976223] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:13:11,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:13:11,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:13:11,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646008826] [2023-11-29 02:13:11,210 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:13:11,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:13:11,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:13:11,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:13:11,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:13:11,211 INFO L87 Difference]: Start difference. First operand 1112 states and 1678 transitions. Second operand has 8 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 02:13:13,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:13:13,713 INFO L93 Difference]: Finished difference Result 1549 states and 2349 transitions. [2023-11-29 02:13:13,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:13:13,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 122 [2023-11-29 02:13:13,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:13:13,720 INFO L225 Difference]: With dead ends: 1549 [2023-11-29 02:13:13,720 INFO L226 Difference]: Without dead ends: 1547 [2023-11-29 02:13:13,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:13:13,722 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 424 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:13:13,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 463 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 02:13:13,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-11-29 02:13:13,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1144. [2023-11-29 02:13:13,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 998 states have (on average 1.5831663326653307) internal successors, (1580), 1059 states have internal predecessors, (1580), 77 states have call successors, (77), 9 states have call predecessors, (77), 9 states have return successors, (77), 75 states have call predecessors, (77), 77 states have call successors, (77) [2023-11-29 02:13:13,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1734 transitions. [2023-11-29 02:13:13,804 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1734 transitions. Word has length 122 [2023-11-29 02:13:13,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:13:13,805 INFO L495 AbstractCegarLoop]: Abstraction has 1144 states and 1734 transitions. [2023-11-29 02:13:13,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 02:13:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1734 transitions. [2023-11-29 02:13:13,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 02:13:13,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:13:13,805 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:13:13,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 02:13:14,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:14,006 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:13:14,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:13:14,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1546538054, now seen corresponding path program 1 times [2023-11-29 02:13:14,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:13:14,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676347583] [2023-11-29 02:13:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:14,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:13:14,013 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:13:14,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958081820] [2023-11-29 02:13:14,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:14,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:14,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:13:14,014 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:13:14,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 02:13:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:13:14,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:13:14,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:13:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 02:13:14,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:13:14,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:13:14,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676347583] [2023-11-29 02:13:14,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:13:14,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958081820] [2023-11-29 02:13:14,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958081820] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:13:14,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:13:14,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:13:14,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837214537] [2023-11-29 02:13:14,693 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:13:14,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:13:14,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:13:14,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:13:14,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:13:14,694 INFO L87 Difference]: Start difference. First operand 1144 states and 1734 transitions. Second operand has 8 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 02:13:16,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:13:16,931 INFO L93 Difference]: Finished difference Result 1549 states and 2346 transitions. [2023-11-29 02:13:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:13:16,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 123 [2023-11-29 02:13:16,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:13:16,936 INFO L225 Difference]: With dead ends: 1549 [2023-11-29 02:13:16,937 INFO L226 Difference]: Without dead ends: 1547 [2023-11-29 02:13:16,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:13:16,938 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 359 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:13:16,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 596 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 02:13:16,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-11-29 02:13:17,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1486. [2023-11-29 02:13:17,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1313 states have (on average 1.613861386138614) internal successors, (2119), 1374 states have internal predecessors, (2119), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:13:17,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2327 transitions. [2023-11-29 02:13:17,014 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2327 transitions. Word has length 123 [2023-11-29 02:13:17,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:13:17,014 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 2327 transitions. [2023-11-29 02:13:17,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 02:13:17,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2327 transitions. [2023-11-29 02:13:17,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 02:13:17,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:13:17,015 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:13:17,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 02:13:17,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:17,215 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:13:17,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:13:17,216 INFO L85 PathProgramCache]: Analyzing trace with hash -698039321, now seen corresponding path program 1 times [2023-11-29 02:13:17,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:13:17,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574986204] [2023-11-29 02:13:17,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:17,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:13:17,230 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:13:17,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2119678439] [2023-11-29 02:13:17,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:17,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:17,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:13:17,231 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:13:17,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 02:13:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:13:17,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:13:17,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:13:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-29 02:13:20,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:13:21,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:13:21,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574986204] [2023-11-29 02:13:21,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:13:21,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119678439] [2023-11-29 02:13:21,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119678439] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:13:21,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:13:21,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 02:13:21,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121915050] [2023-11-29 02:13:21,732 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:13:21,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:13:21,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:13:21,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:13:21,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:13:21,733 INFO L87 Difference]: Start difference. First operand 1486 states and 2327 transitions. Second operand has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 12 states have internal predecessors, (91), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-29 02:13:28,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:13:38,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:13:38,234 INFO L93 Difference]: Finished difference Result 1524 states and 2328 transitions. [2023-11-29 02:13:38,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:13:38,235 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 12 states have internal predecessors, (91), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 124 [2023-11-29 02:13:38,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:13:38,239 INFO L225 Difference]: With dead ends: 1524 [2023-11-29 02:13:38,239 INFO L226 Difference]: Without dead ends: 1523 [2023-11-29 02:13:38,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:13:38,240 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 316 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:13:38,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 739 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2023-11-29 02:13:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2023-11-29 02:13:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1486. [2023-11-29 02:13:38,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1313 states have (on average 1.6108149276466108) internal successors, (2115), 1374 states have internal predecessors, (2115), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:13:38,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2323 transitions. [2023-11-29 02:13:38,323 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2323 transitions. Word has length 124 [2023-11-29 02:13:38,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:13:38,323 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 2323 transitions. [2023-11-29 02:13:38,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 12 states have internal predecessors, (91), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-29 02:13:38,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2323 transitions. [2023-11-29 02:13:38,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 02:13:38,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:13:38,324 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:13:38,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 02:13:38,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:38,524 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:13:38,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:13:38,525 INFO L85 PathProgramCache]: Analyzing trace with hash -164382372, now seen corresponding path program 1 times [2023-11-29 02:13:38,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:13:38,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515852861] [2023-11-29 02:13:38,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:38,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:13:38,533 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:13:38,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28640761] [2023-11-29 02:13:38,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:38,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:38,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:13:38,534 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:13:38,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 02:13:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:13:38,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:13:38,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:13:38,777 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 02:13:38,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:13:39,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:13:39,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515852861] [2023-11-29 02:13:39,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:13:39,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28640761] [2023-11-29 02:13:39,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28640761] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:13:39,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:13:39,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 02:13:39,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911095911] [2023-11-29 02:13:39,019 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:13:39,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:13:39,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:13:39,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:13:39,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:13:39,020 INFO L87 Difference]: Start difference. First operand 1486 states and 2323 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 02:13:39,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:13:39,945 INFO L93 Difference]: Finished difference Result 1551 states and 2334 transitions. [2023-11-29 02:13:39,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:13:39,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 125 [2023-11-29 02:13:39,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:13:39,948 INFO L225 Difference]: With dead ends: 1551 [2023-11-29 02:13:39,948 INFO L226 Difference]: Without dead ends: 1548 [2023-11-29 02:13:39,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:13:39,949 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 119 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:13:39,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 522 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 02:13:39,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2023-11-29 02:13:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1489. [2023-11-29 02:13:40,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.6048632218844985) internal successors, (2112), 1377 states have internal predecessors, (2112), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:13:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2320 transitions. [2023-11-29 02:13:40,023 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2320 transitions. Word has length 125 [2023-11-29 02:13:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:13:40,024 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2320 transitions. [2023-11-29 02:13:40,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 02:13:40,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2320 transitions. [2023-11-29 02:13:40,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 02:13:40,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:13:40,024 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:13:40,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 02:13:40,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:40,225 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:13:40,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:13:40,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1625129682, now seen corresponding path program 1 times [2023-11-29 02:13:40,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:13:40,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332659640] [2023-11-29 02:13:40,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:40,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:13:40,232 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:13:40,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917004410] [2023-11-29 02:13:40,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:40,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:40,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:13:40,233 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:13:40,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 02:13:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:13:40,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:13:40,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:13:40,811 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 02:13:40,811 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:13:45,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:13:45,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332659640] [2023-11-29 02:13:45,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:13:45,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917004410] [2023-11-29 02:13:45,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917004410] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:13:45,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:13:45,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:13:45,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916545116] [2023-11-29 02:13:45,035 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:13:45,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:13:45,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:13:45,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:13:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=97, Unknown=1, NotChecked=0, Total=132 [2023-11-29 02:13:45,036 INFO L87 Difference]: Start difference. First operand 1489 states and 2320 transitions. Second operand has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:13:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:13:46,382 INFO L93 Difference]: Finished difference Result 1557 states and 2347 transitions. [2023-11-29 02:13:46,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:13:46,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 131 [2023-11-29 02:13:46,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:13:46,385 INFO L225 Difference]: With dead ends: 1557 [2023-11-29 02:13:46,385 INFO L226 Difference]: Without dead ends: 1554 [2023-11-29 02:13:46,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=38, Invalid=117, Unknown=1, NotChecked=0, Total=156 [2023-11-29 02:13:46,386 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 396 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:13:46,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 665 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:13:46,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2023-11-29 02:13:46,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1489. [2023-11-29 02:13:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5911854103343466) internal successors, (2094), 1377 states have internal predecessors, (2094), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:13:46,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2302 transitions. [2023-11-29 02:13:46,462 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2302 transitions. Word has length 131 [2023-11-29 02:13:46,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:13:46,462 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2302 transitions. [2023-11-29 02:13:46,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:13:46,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2302 transitions. [2023-11-29 02:13:46,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 02:13:46,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:13:46,463 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:13:46,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2023-11-29 02:13:46,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:46,664 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:13:46,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:13:46,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1160587306, now seen corresponding path program 1 times [2023-11-29 02:13:46,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:13:46,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393051113] [2023-11-29 02:13:46,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:46,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:13:46,690 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:13:46,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214609042] [2023-11-29 02:13:46,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:46,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:13:46,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:13:46,694 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:13:46,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 02:13:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:13:46,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:13:46,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:13:47,246 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 02:13:47,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:13:59,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:13:59,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393051113] [2023-11-29 02:13:59,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:13:59,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214609042] [2023-11-29 02:13:59,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214609042] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:13:59,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:13:59,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:13:59,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118395686] [2023-11-29 02:13:59,789 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:13:59,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:13:59,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:13:59,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:13:59,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=94, Unknown=3, NotChecked=0, Total=132 [2023-11-29 02:13:59,790 INFO L87 Difference]: Start difference. First operand 1489 states and 2302 transitions. Second operand has 9 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:14:01,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:14:01,404 INFO L93 Difference]: Finished difference Result 1557 states and 2329 transitions. [2023-11-29 02:14:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:14:01,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 132 [2023-11-29 02:14:01,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:14:01,407 INFO L225 Difference]: With dead ends: 1557 [2023-11-29 02:14:01,407 INFO L226 Difference]: Without dead ends: 1554 [2023-11-29 02:14:01,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=49, Invalid=130, Unknown=3, NotChecked=0, Total=182 [2023-11-29 02:14:01,408 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 359 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:14:01,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 469 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 02:14:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2023-11-29 02:14:01,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1489. [2023-11-29 02:14:01,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5775075987841944) internal successors, (2076), 1377 states have internal predecessors, (2076), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:14:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2284 transitions. [2023-11-29 02:14:01,489 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2284 transitions. Word has length 132 [2023-11-29 02:14:01,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:14:01,489 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2284 transitions. [2023-11-29 02:14:01,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:14:01,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2284 transitions. [2023-11-29 02:14:01,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 02:14:01,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:14:01,490 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:14:01,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 02:14:01,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 02:14:01,691 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:14:01,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:14:01,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1618468012, now seen corresponding path program 1 times [2023-11-29 02:14:01,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:14:01,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146563798] [2023-11-29 02:14:01,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:01,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:14:01,699 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:14:01,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553209685] [2023-11-29 02:14:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:01,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:14:01,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:14:01,700 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:14:01,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 02:14:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:14:01,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:14:01,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:14:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 02:14:02,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:14:06,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:14:06,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146563798] [2023-11-29 02:14:06,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:14:06,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553209685] [2023-11-29 02:14:06,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553209685] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:14:06,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:14:06,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 02:14:06,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152759179] [2023-11-29 02:14:06,544 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:14:06,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:14:06,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:14:06,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:14:06,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=170, Unknown=1, NotChecked=0, Total=210 [2023-11-29 02:14:06,545 INFO L87 Difference]: Start difference. First operand 1489 states and 2284 transitions. Second operand has 11 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:14:08,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:14:08,456 INFO L93 Difference]: Finished difference Result 1537 states and 2301 transitions. [2023-11-29 02:14:08,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:14:08,456 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 133 [2023-11-29 02:14:08,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:14:08,460 INFO L225 Difference]: With dead ends: 1537 [2023-11-29 02:14:08,460 INFO L226 Difference]: Without dead ends: 1536 [2023-11-29 02:14:08,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=87, Invalid=374, Unknown=1, NotChecked=0, Total=462 [2023-11-29 02:14:08,461 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 496 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:14:08,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 560 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 02:14:08,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2023-11-29 02:14:08,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1489. [2023-11-29 02:14:08,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5767477203647415) internal successors, (2075), 1377 states have internal predecessors, (2075), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:14:08,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2283 transitions. [2023-11-29 02:14:08,545 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2283 transitions. Word has length 133 [2023-11-29 02:14:08,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:14:08,545 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2283 transitions. [2023-11-29 02:14:08,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:14:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2283 transitions. [2023-11-29 02:14:08,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 02:14:08,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:14:08,546 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:14:08,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 02:14:08,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 02:14:08,747 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:14:08,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:14:08,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1367099288, now seen corresponding path program 1 times [2023-11-29 02:14:08,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:14:08,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734378406] [2023-11-29 02:14:08,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:08,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:14:08,753 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:14:08,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051826850] [2023-11-29 02:14:08,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:08,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:14:08,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:14:08,754 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:14:08,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 02:14:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:14:08,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:14:08,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:14:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 02:14:09,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:14:22,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:14:22,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734378406] [2023-11-29 02:14:22,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:14:22,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051826850] [2023-11-29 02:14:22,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051826850] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:14:22,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:14:22,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 02:14:22,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670732344] [2023-11-29 02:14:22,116 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:14:22,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:14:22,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:14:22,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:14:22,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=168, Unknown=3, NotChecked=0, Total=210 [2023-11-29 02:14:22,117 INFO L87 Difference]: Start difference. First operand 1489 states and 2283 transitions. Second operand has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:14:24,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:14:24,799 INFO L93 Difference]: Finished difference Result 1536 states and 2300 transitions. [2023-11-29 02:14:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:14:24,799 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 134 [2023-11-29 02:14:24,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:14:24,802 INFO L225 Difference]: With dead ends: 1536 [2023-11-29 02:14:24,802 INFO L226 Difference]: Without dead ends: 1534 [2023-11-29 02:14:24,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=87, Invalid=372, Unknown=3, NotChecked=0, Total=462 [2023-11-29 02:14:24,802 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 491 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:14:24,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 560 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 02:14:24,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2023-11-29 02:14:24,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1489. [2023-11-29 02:14:24,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5706686930091185) internal successors, (2067), 1377 states have internal predecessors, (2067), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:14:24,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2275 transitions. [2023-11-29 02:14:24,884 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2275 transitions. Word has length 134 [2023-11-29 02:14:24,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:14:24,885 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2275 transitions. [2023-11-29 02:14:24,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:14:24,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2275 transitions. [2023-11-29 02:14:24,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 02:14:24,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:14:24,885 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:14:24,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 02:14:25,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 02:14:25,086 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:14:25,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:14:25,086 INFO L85 PathProgramCache]: Analyzing trace with hash -569594922, now seen corresponding path program 1 times [2023-11-29 02:14:25,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:14:25,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134053323] [2023-11-29 02:14:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:25,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:14:25,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:14:25,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889703038] [2023-11-29 02:14:25,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:25,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:14:25,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:14:25,094 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:14:25,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 02:14:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:14:25,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:14:25,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:14:25,522 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 02:14:25,522 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:14:25,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:14:25,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134053323] [2023-11-29 02:14:25,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:14:25,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889703038] [2023-11-29 02:14:25,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889703038] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:14:25,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:14:25,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:14:25,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262259147] [2023-11-29 02:14:25,603 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:14:25,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:14:25,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:14:25,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:14:25,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:14:25,604 INFO L87 Difference]: Start difference. First operand 1489 states and 2275 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:14:27,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:14:27,057 INFO L93 Difference]: Finished difference Result 1567 states and 2311 transitions. [2023-11-29 02:14:27,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:14:27,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 135 [2023-11-29 02:14:27,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:14:27,060 INFO L225 Difference]: With dead ends: 1567 [2023-11-29 02:14:27,060 INFO L226 Difference]: Without dead ends: 1565 [2023-11-29 02:14:27,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:14:27,061 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 261 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:14:27,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 735 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 02:14:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2023-11-29 02:14:27,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1489. [2023-11-29 02:14:27,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5630699088145896) internal successors, (2057), 1377 states have internal predecessors, (2057), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:14:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2265 transitions. [2023-11-29 02:14:27,145 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2265 transitions. Word has length 135 [2023-11-29 02:14:27,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:14:27,145 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2265 transitions. [2023-11-29 02:14:27,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:14:27,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2265 transitions. [2023-11-29 02:14:27,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 02:14:27,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:14:27,146 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:14:27,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2023-11-29 02:14:27,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:14:27,347 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:14:27,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:14:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash -477573286, now seen corresponding path program 1 times [2023-11-29 02:14:27,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:14:27,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007167533] [2023-11-29 02:14:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:27,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:14:27,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:14:27,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977440621] [2023-11-29 02:14:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:27,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:14:27,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:14:27,355 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:14:27,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 02:14:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:14:27,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:14:27,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:14:28,634 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 02:14:28,634 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:14:29,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:14:29,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007167533] [2023-11-29 02:14:29,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:14:29,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977440621] [2023-11-29 02:14:29,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977440621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:14:29,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:14:29,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:14:29,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279632568] [2023-11-29 02:14:29,199 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:14:29,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:14:29,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:14:29,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:14:29,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:14:29,200 INFO L87 Difference]: Start difference. First operand 1489 states and 2265 transitions. Second operand has 12 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:14:33,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:14:33,386 INFO L93 Difference]: Finished difference Result 1533 states and 2282 transitions. [2023-11-29 02:14:33,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:14:33,386 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 136 [2023-11-29 02:14:33,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:14:33,389 INFO L225 Difference]: With dead ends: 1533 [2023-11-29 02:14:33,389 INFO L226 Difference]: Without dead ends: 1532 [2023-11-29 02:14:33,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:14:33,390 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 540 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:14:33,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 548 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 02:14:33,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2023-11-29 02:14:33,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1489. [2023-11-29 02:14:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5600303951367782) internal successors, (2053), 1377 states have internal predecessors, (2053), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:14:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2261 transitions. [2023-11-29 02:14:33,467 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2261 transitions. Word has length 136 [2023-11-29 02:14:33,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:14:33,467 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2261 transitions. [2023-11-29 02:14:33,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:14:33,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2261 transitions. [2023-11-29 02:14:33,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 02:14:33,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:14:33,468 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:14:33,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2023-11-29 02:14:33,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2023-11-29 02:14:33,669 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:14:33,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:14:33,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1658367015, now seen corresponding path program 1 times [2023-11-29 02:14:33,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:14:33,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538848390] [2023-11-29 02:14:33,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:33,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:14:33,676 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:14:33,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15922843] [2023-11-29 02:14:33,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:33,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:14:33,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:14:33,677 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:14:33,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 02:14:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:14:33,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:14:33,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:14:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 3 proven. 38 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 02:14:35,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:14:43,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:14:43,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538848390] [2023-11-29 02:14:43,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:14:43,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15922843] [2023-11-29 02:14:43,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15922843] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:14:43,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:14:43,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:14:43,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828850186] [2023-11-29 02:14:43,888 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:14:43,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:14:43,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:14:43,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:14:43,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=194, Unknown=2, NotChecked=0, Total=240 [2023-11-29 02:14:43,889 INFO L87 Difference]: Start difference. First operand 1489 states and 2261 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 02:14:49,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:14:54,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:14:54,943 INFO L93 Difference]: Finished difference Result 1524 states and 2270 transitions. [2023-11-29 02:14:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:14:54,944 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 6 states have call successors, (11) Word has length 142 [2023-11-29 02:14:54,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:14:54,947 INFO L225 Difference]: With dead ends: 1524 [2023-11-29 02:14:54,947 INFO L226 Difference]: Without dead ends: 1523 [2023-11-29 02:14:54,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=98, Invalid=406, Unknown=2, NotChecked=0, Total=506 [2023-11-29 02:14:54,947 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 673 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:14:54,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 785 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-11-29 02:14:54,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2023-11-29 02:14:55,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1489. [2023-11-29 02:14:55,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5569908814589666) internal successors, (2049), 1377 states have internal predecessors, (2049), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:14:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2257 transitions. [2023-11-29 02:14:55,069 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2257 transitions. Word has length 142 [2023-11-29 02:14:55,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:14:55,070 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2257 transitions. [2023-11-29 02:14:55,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 02:14:55,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2257 transitions. [2023-11-29 02:14:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 02:14:55,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:14:55,071 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:14:55,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2023-11-29 02:14:55,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:14:55,271 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:14:55,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:14:55,272 INFO L85 PathProgramCache]: Analyzing trace with hash 130230204, now seen corresponding path program 1 times [2023-11-29 02:14:55,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:14:55,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851296386] [2023-11-29 02:14:55,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:55,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:14:55,280 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:14:55,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1169574589] [2023-11-29 02:14:55,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:55,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:14:55,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:14:55,281 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:14:55,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 02:14:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:14:55,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:14:55,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:14:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 02:14:55,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:15:00,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:15:00,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851296386] [2023-11-29 02:15:00,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:15:00,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169574589] [2023-11-29 02:15:00,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169574589] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:15:00,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:15:00,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:15:00,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881335846] [2023-11-29 02:15:00,251 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:15:00,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:15:00,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:15:00,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:15:00,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=81, Unknown=1, NotChecked=0, Total=110 [2023-11-29 02:15:00,252 INFO L87 Difference]: Start difference. First operand 1489 states and 2257 transitions. Second operand has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 02:15:00,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:15:00,692 INFO L93 Difference]: Finished difference Result 1552 states and 2284 transitions. [2023-11-29 02:15:00,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:15:00,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 143 [2023-11-29 02:15:00,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:15:00,697 INFO L225 Difference]: With dead ends: 1552 [2023-11-29 02:15:00,697 INFO L226 Difference]: Without dead ends: 1551 [2023-11-29 02:15:00,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2023-11-29 02:15:00,698 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 97 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:15:00,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 862 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:15:00,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2023-11-29 02:15:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1489. [2023-11-29 02:15:00,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5509118541033435) internal successors, (2041), 1377 states have internal predecessors, (2041), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:15:00,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2249 transitions. [2023-11-29 02:15:00,805 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2249 transitions. Word has length 143 [2023-11-29 02:15:00,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:15:00,805 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2249 transitions. [2023-11-29 02:15:00,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 02:15:00,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2249 transitions. [2023-11-29 02:15:00,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 02:15:00,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:15:00,806 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:15:00,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 02:15:01,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:15:01,007 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:15:01,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:15:01,007 INFO L85 PathProgramCache]: Analyzing trace with hash -257830853, now seen corresponding path program 1 times [2023-11-29 02:15:01,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:15:01,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477573106] [2023-11-29 02:15:01,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:01,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:15:01,014 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:15:01,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098259394] [2023-11-29 02:15:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:01,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:15:01,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:15:01,015 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:15:01,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 02:15:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:15:01,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:15:01,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:15:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 18 proven. 40 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 02:15:02,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:15:10,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:15:10,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477573106] [2023-11-29 02:15:10,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:15:10,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098259394] [2023-11-29 02:15:10,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098259394] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:15:10,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:15:10,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:15:10,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449172859] [2023-11-29 02:15:10,463 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:15:10,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:15:10,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:15:10,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:15:10,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=255, Unknown=2, NotChecked=0, Total=306 [2023-11-29 02:15:10,465 INFO L87 Difference]: Start difference. First operand 1489 states and 2249 transitions. Second operand has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:15:15,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:15:15,000 INFO L93 Difference]: Finished difference Result 1530 states and 2266 transitions. [2023-11-29 02:15:15,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:15:15,000 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 144 [2023-11-29 02:15:15,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:15:15,003 INFO L225 Difference]: With dead ends: 1530 [2023-11-29 02:15:15,003 INFO L226 Difference]: Without dead ends: 1529 [2023-11-29 02:15:15,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=75, Invalid=385, Unknown=2, NotChecked=0, Total=462 [2023-11-29 02:15:15,003 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 437 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:15:15,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 699 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 02:15:15,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2023-11-29 02:15:15,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1489. [2023-11-29 02:15:15,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.547872340425532) internal successors, (2037), 1377 states have internal predecessors, (2037), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:15:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2245 transitions. [2023-11-29 02:15:15,091 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2245 transitions. Word has length 144 [2023-11-29 02:15:15,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:15:15,091 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2245 transitions. [2023-11-29 02:15:15,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:15:15,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2245 transitions. [2023-11-29 02:15:15,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 02:15:15,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:15:15,092 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:15:15,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 02:15:15,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:15:15,293 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:15:15,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:15:15,293 INFO L85 PathProgramCache]: Analyzing trace with hash 597178270, now seen corresponding path program 1 times [2023-11-29 02:15:15,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:15:15,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322762496] [2023-11-29 02:15:15,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:15,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:15:15,302 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:15:15,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958908647] [2023-11-29 02:15:15,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:15,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:15:15,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:15:15,303 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:15:15,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 02:15:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:15:15,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:15:15,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:15:16,476 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 18 proven. 41 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 02:15:16,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:15:24,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:15:24,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322762496] [2023-11-29 02:15:24,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:15:24,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958908647] [2023-11-29 02:15:24,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958908647] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:15:24,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:15:24,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:15:24,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276889359] [2023-11-29 02:15:24,382 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:15:24,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:15:24,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:15:24,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:15:24,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=255, Unknown=2, NotChecked=0, Total=306 [2023-11-29 02:15:24,383 INFO L87 Difference]: Start difference. First operand 1489 states and 2245 transitions. Second operand has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:15:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:15:28,885 INFO L93 Difference]: Finished difference Result 1529 states and 2262 transitions. [2023-11-29 02:15:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:15:28,885 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 145 [2023-11-29 02:15:28,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:15:28,888 INFO L225 Difference]: With dead ends: 1529 [2023-11-29 02:15:28,888 INFO L226 Difference]: Without dead ends: 1528 [2023-11-29 02:15:28,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=75, Invalid=385, Unknown=2, NotChecked=0, Total=462 [2023-11-29 02:15:28,889 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 356 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:15:28,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 766 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 02:15:28,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2023-11-29 02:15:28,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1489. [2023-11-29 02:15:28,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5448328267477203) internal successors, (2033), 1377 states have internal predecessors, (2033), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:15:28,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2241 transitions. [2023-11-29 02:15:28,971 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2241 transitions. Word has length 145 [2023-11-29 02:15:28,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:15:28,972 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2241 transitions. [2023-11-29 02:15:28,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:15:28,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2241 transitions. [2023-11-29 02:15:28,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 02:15:28,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:15:28,973 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:15:28,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2023-11-29 02:15:29,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2023-11-29 02:15:29,173 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:15:29,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:15:29,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1332657309, now seen corresponding path program 1 times [2023-11-29 02:15:29,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:15:29,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118936437] [2023-11-29 02:15:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:29,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:15:29,180 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:15:29,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137159647] [2023-11-29 02:15:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:29,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:15:29,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:15:29,181 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:15:29,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 02:15:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:15:29,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 02:15:29,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:15:35,156 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 02:15:35,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:15:35,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:15:35,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118936437] [2023-11-29 02:15:35,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:15:35,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137159647] [2023-11-29 02:15:35,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137159647] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:15:35,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:15:35,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:15:35,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396764119] [2023-11-29 02:15:35,195 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:15:35,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:15:35,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:15:35,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:15:35,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=130, Unknown=1, NotChecked=0, Total=156 [2023-11-29 02:15:35,196 INFO L87 Difference]: Start difference. First operand 1489 states and 2241 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 11 states have internal predecessors, (100), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:15:37,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:15:41,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:15:45,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:15:53,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:15:53,222 INFO L93 Difference]: Finished difference Result 1520 states and 2250 transitions. [2023-11-29 02:15:53,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:15:53,222 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 11 states have internal predecessors, (100), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 146 [2023-11-29 02:15:53,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:15:53,225 INFO L225 Difference]: With dead ends: 1520 [2023-11-29 02:15:53,225 INFO L226 Difference]: Without dead ends: 1519 [2023-11-29 02:15:53,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=63, Invalid=316, Unknown=1, NotChecked=0, Total=380 [2023-11-29 02:15:53,226 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 460 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:15:53,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 636 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1565 Invalid, 1 Unknown, 0 Unchecked, 15.7s Time] [2023-11-29 02:15:53,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2023-11-29 02:15:53,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1489. [2023-11-29 02:15:53,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5417933130699089) internal successors, (2029), 1377 states have internal predecessors, (2029), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:15:53,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2237 transitions. [2023-11-29 02:15:53,329 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2237 transitions. Word has length 146 [2023-11-29 02:15:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:15:53,329 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2237 transitions. [2023-11-29 02:15:53,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 11 states have internal predecessors, (100), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:15:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2237 transitions. [2023-11-29 02:15:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 02:15:53,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:15:53,330 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:15:53,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 02:15:53,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-29 02:15:53,530 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:15:53,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:15:53,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1637296256, now seen corresponding path program 1 times [2023-11-29 02:15:53,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:15:53,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133931463] [2023-11-29 02:15:53,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:53,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:15:53,537 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:15:53,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231724378] [2023-11-29 02:15:53,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:53,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:15:53,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:15:53,539 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:15:53,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 02:15:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:15:53,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 02:15:53,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:15:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 02:15:54,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:15:54,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:15:54,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133931463] [2023-11-29 02:15:54,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:15:54,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231724378] [2023-11-29 02:15:54,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231724378] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:15:54,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:15:54,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:15:54,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849853936] [2023-11-29 02:15:54,418 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:15:54,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:15:54,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:15:54,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:15:54,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:15:54,419 INFO L87 Difference]: Start difference. First operand 1489 states and 2237 transitions. Second operand has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 10 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:15:55,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:15:55,774 INFO L93 Difference]: Finished difference Result 1519 states and 2246 transitions. [2023-11-29 02:15:55,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:15:55,774 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 10 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 147 [2023-11-29 02:15:55,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:15:55,776 INFO L225 Difference]: With dead ends: 1519 [2023-11-29 02:15:55,776 INFO L226 Difference]: Without dead ends: 1518 [2023-11-29 02:15:55,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:15:55,777 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 108 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:15:55,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 785 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:15:55,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2023-11-29 02:15:55,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1489. [2023-11-29 02:15:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5387537993920972) internal successors, (2025), 1377 states have internal predecessors, (2025), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:15:55,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2233 transitions. [2023-11-29 02:15:55,872 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2233 transitions. Word has length 147 [2023-11-29 02:15:55,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:15:55,872 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2233 transitions. [2023-11-29 02:15:55,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 10 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:15:55,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2233 transitions. [2023-11-29 02:15:55,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 02:15:55,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:15:55,873 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:15:55,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 02:15:56,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-29 02:15:56,074 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:15:56,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:15:56,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1250944353, now seen corresponding path program 1 times [2023-11-29 02:15:56,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:15:56,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898773979] [2023-11-29 02:15:56,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:56,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:15:56,082 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:15:56,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [504485001] [2023-11-29 02:15:56,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:56,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:15:56,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:15:56,083 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:15:56,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 02:15:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:15:56,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 02:15:56,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:15:58,397 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 02:15:58,398 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:16:00,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:16:00,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898773979] [2023-11-29 02:16:00,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:16:00,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504485001] [2023-11-29 02:16:00,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504485001] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:16:00,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:16:00,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:16:00,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040400029] [2023-11-29 02:16:00,528 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:16:00,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:16:00,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:16:00,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:16:00,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:16:00,529 INFO L87 Difference]: Start difference. First operand 1489 states and 2233 transitions. Second operand has 14 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 02:16:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:16:07,438 INFO L93 Difference]: Finished difference Result 1518 states and 2242 transitions. [2023-11-29 02:16:07,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:16:07,439 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 150 [2023-11-29 02:16:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:16:07,442 INFO L225 Difference]: With dead ends: 1518 [2023-11-29 02:16:07,442 INFO L226 Difference]: Without dead ends: 1517 [2023-11-29 02:16:07,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:16:07,443 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 538 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:16:07,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 672 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-29 02:16:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2023-11-29 02:16:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1489. [2023-11-29 02:16:07,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5357142857142858) internal successors, (2021), 1377 states have internal predecessors, (2021), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:16:07,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2229 transitions. [2023-11-29 02:16:07,547 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2229 transitions. Word has length 150 [2023-11-29 02:16:07,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:16:07,547 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2229 transitions. [2023-11-29 02:16:07,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 02:16:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2229 transitions. [2023-11-29 02:16:07,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 02:16:07,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:16:07,548 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:16:07,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2023-11-29 02:16:07,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 02:16:07,748 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:16:07,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:16:07,749 INFO L85 PathProgramCache]: Analyzing trace with hash 124569412, now seen corresponding path program 1 times [2023-11-29 02:16:07,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:16:07,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066393093] [2023-11-29 02:16:07,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:16:07,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:16:07,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:16:07,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186558861] [2023-11-29 02:16:07,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:16:07,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:16:07,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:16:07,756 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:16:07,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 02:16:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:16:07,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:16:07,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:16:08,186 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 02:16:08,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:16:08,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:16:08,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066393093] [2023-11-29 02:16:08,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:16:08,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186558861] [2023-11-29 02:16:08,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186558861] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:16:08,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:16:08,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:16:08,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615753453] [2023-11-29 02:16:08,343 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:16:08,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:16:08,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:16:08,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:16:08,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:16:08,344 INFO L87 Difference]: Start difference. First operand 1489 states and 2229 transitions. Second operand has 9 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 02:16:11,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:16:11,474 INFO L93 Difference]: Finished difference Result 1570 states and 2265 transitions. [2023-11-29 02:16:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:16:11,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 151 [2023-11-29 02:16:11,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:16:11,478 INFO L225 Difference]: With dead ends: 1570 [2023-11-29 02:16:11,478 INFO L226 Difference]: Without dead ends: 1568 [2023-11-29 02:16:11,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:16:11,479 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 294 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:16:11,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 800 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 02:16:11,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2023-11-29 02:16:11,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1489. [2023-11-29 02:16:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.527355623100304) internal successors, (2010), 1377 states have internal predecessors, (2010), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 02:16:11,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2218 transitions. [2023-11-29 02:16:11,572 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2218 transitions. Word has length 151 [2023-11-29 02:16:11,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:16:11,572 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2218 transitions. [2023-11-29 02:16:11,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 02:16:11,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2218 transitions. [2023-11-29 02:16:11,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 02:16:11,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:16:11,573 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:16:11,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2023-11-29 02:16:11,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 02:16:11,774 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:16:11,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:16:11,774 INFO L85 PathProgramCache]: Analyzing trace with hash -433315389, now seen corresponding path program 1 times [2023-11-29 02:16:11,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:16:11,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912821266] [2023-11-29 02:16:11,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:16:11,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:16:11,782 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:16:11,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370350787] [2023-11-29 02:16:11,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:16:11,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:16:11,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:16:11,783 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:16:11,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 02:16:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:16:11,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:16:11,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:16:12,141 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 02:16:12,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:16:12,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:16:12,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912821266] [2023-11-29 02:16:12,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:16:12,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370350787] [2023-11-29 02:16:12,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370350787] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:16:12,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:16:12,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:16:12,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232887213] [2023-11-29 02:16:12,278 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:16:12,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:16:12,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:16:12,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:16:12,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:16:12,278 INFO L87 Difference]: Start difference. First operand 1489 states and 2218 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:16:14,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:16:14,684 INFO L93 Difference]: Finished difference Result 2209 states and 3226 transitions. [2023-11-29 02:16:14,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:16:14,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 152 [2023-11-29 02:16:14,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:16:14,688 INFO L225 Difference]: With dead ends: 2209 [2023-11-29 02:16:14,688 INFO L226 Difference]: Without dead ends: 2208 [2023-11-29 02:16:14,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:16:14,689 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 731 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:16:14,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 809 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 02:16:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2023-11-29 02:16:14,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 1881. [2023-11-29 02:16:14,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1680 states have (on average 1.5660714285714286) internal successors, (2631), 1741 states have internal predecessors, (2631), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 130 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-29 02:16:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2895 transitions. [2023-11-29 02:16:14,810 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2895 transitions. Word has length 152 [2023-11-29 02:16:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:16:14,810 INFO L495 AbstractCegarLoop]: Abstraction has 1881 states and 2895 transitions. [2023-11-29 02:16:14,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:16:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2895 transitions. [2023-11-29 02:16:14,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 02:16:14,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:16:14,811 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:16:14,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 02:16:15,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:16:15,012 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:16:15,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:16:15,012 INFO L85 PathProgramCache]: Analyzing trace with hash -547875034, now seen corresponding path program 1 times [2023-11-29 02:16:15,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:16:15,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984656154] [2023-11-29 02:16:15,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:16:15,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:16:15,019 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:16:15,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224978604] [2023-11-29 02:16:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:16:15,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:16:15,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:16:15,020 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:16:15,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 02:16:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:16:15,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:16:15,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:16:15,533 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 02:16:15,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:16:16,705 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 02:16:16,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:16:16,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984656154] [2023-11-29 02:16:16,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:16:16,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224978604] [2023-11-29 02:16:16,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224978604] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:16:16,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:16:16,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 02:16:16,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988554271] [2023-11-29 02:16:16,706 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:16:16,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 02:16:16,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:16:16,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 02:16:16,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:16:16,707 INFO L87 Difference]: Start difference. First operand 1881 states and 2895 transitions. Second operand has 15 states, 12 states have (on average 17.25) internal successors, (207), 13 states have internal predecessors, (207), 10 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-29 02:16:48,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:16:48,748 INFO L93 Difference]: Finished difference Result 3865 states and 5630 transitions. [2023-11-29 02:16:48,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 02:16:48,748 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 17.25) internal successors, (207), 13 states have internal predecessors, (207), 10 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) Word has length 153 [2023-11-29 02:16:48,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:16:48,754 INFO L225 Difference]: With dead ends: 3865 [2023-11-29 02:16:48,754 INFO L226 Difference]: Without dead ends: 3864 [2023-11-29 02:16:48,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:16:48,756 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 2943 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2943 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:16:48,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2943 Valid, 1328 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 29.9s Time] [2023-11-29 02:16:48,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2023-11-29 02:16:48,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 1989. [2023-11-29 02:16:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1781 states have (on average 1.5760808534531163) internal successors, (2807), 1842 states have internal predecessors, (2807), 139 states have call successors, (139), 9 states have call predecessors, (139), 9 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 02:16:48,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 3085 transitions. [2023-11-29 02:16:48,934 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 3085 transitions. Word has length 153 [2023-11-29 02:16:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:16:48,935 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 3085 transitions. [2023-11-29 02:16:48,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 17.25) internal successors, (207), 13 states have internal predecessors, (207), 10 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-29 02:16:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 3085 transitions. [2023-11-29 02:16:48,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 02:16:48,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:16:48,936 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:16:48,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 02:16:49,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:16:49,136 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:16:49,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:16:49,137 INFO L85 PathProgramCache]: Analyzing trace with hash 195743269, now seen corresponding path program 1 times [2023-11-29 02:16:49,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:16:49,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30865448] [2023-11-29 02:16:49,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:16:49,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:16:49,146 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:16:49,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1265082897] [2023-11-29 02:16:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:16:49,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:16:49,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:16:49,147 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:16:49,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 02:16:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:16:49,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 02:16:49,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:16:52,339 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 21 proven. 56 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 02:16:52,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:16:56,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:16:56,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30865448] [2023-11-29 02:16:56,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:16:56,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265082897] [2023-11-29 02:16:56,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265082897] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:16:56,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:16:56,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:16:56,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697377114] [2023-11-29 02:16:56,515 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:16:56,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:16:56,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:16:56,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:16:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=196, Unknown=1, NotChecked=0, Total=240 [2023-11-29 02:16:56,516 INFO L87 Difference]: Start difference. First operand 1989 states and 3085 transitions. Second operand has 14 states, 12 states have (on average 9.0) internal successors, (108), 14 states have internal predecessors, (108), 7 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 7 states have call successors, (11) [2023-11-29 02:17:01,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:01,645 INFO L93 Difference]: Finished difference Result 2018 states and 3098 transitions. [2023-11-29 02:17:01,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:17:01,646 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 14 states have internal predecessors, (108), 7 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 7 states have call successors, (11) Word has length 154 [2023-11-29 02:17:01,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:01,648 INFO L225 Difference]: With dead ends: 2018 [2023-11-29 02:17:01,648 INFO L226 Difference]: Without dead ends: 2014 [2023-11-29 02:17:01,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=55, Invalid=250, Unknown=1, NotChecked=0, Total=306 [2023-11-29 02:17:01,649 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 246 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:01,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 546 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-29 02:17:01,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2023-11-29 02:17:01,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1989. [2023-11-29 02:17:01,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1781 states have (on average 1.5670971364402022) internal successors, (2791), 1842 states have internal predecessors, (2791), 139 states have call successors, (139), 9 states have call predecessors, (139), 9 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 02:17:01,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 3069 transitions. [2023-11-29 02:17:01,778 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 3069 transitions. Word has length 154 [2023-11-29 02:17:01,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:01,778 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 3069 transitions. [2023-11-29 02:17:01,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 14 states have internal predecessors, (108), 7 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 7 states have call successors, (11) [2023-11-29 02:17:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 3069 transitions. [2023-11-29 02:17:01,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 02:17:01,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:01,779 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:17:01,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2023-11-29 02:17:01,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:01,979 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:17:01,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:01,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1773074184, now seen corresponding path program 1 times [2023-11-29 02:17:01,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:01,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058508452] [2023-11-29 02:17:01,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:01,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:01,988 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:01,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [530681801] [2023-11-29 02:17:01,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:01,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:01,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:01,989 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:01,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 02:17:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:02,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:17:02,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 02:17:02,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:17:06,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:06,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058508452] [2023-11-29 02:17:06,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:06,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530681801] [2023-11-29 02:17:06,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530681801] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:17:06,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:17:06,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:17:06,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625056690] [2023-11-29 02:17:06,790 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:17:06,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:17:06,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:06,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:17:06,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2023-11-29 02:17:06,791 INFO L87 Difference]: Start difference. First operand 1989 states and 3069 transitions. Second operand has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:17:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:10,577 INFO L93 Difference]: Finished difference Result 2002 states and 3070 transitions. [2023-11-29 02:17:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:17:10,577 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 155 [2023-11-29 02:17:10,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:10,579 INFO L225 Difference]: With dead ends: 2002 [2023-11-29 02:17:10,579 INFO L226 Difference]: Without dead ends: 2001 [2023-11-29 02:17:10,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=53, Invalid=186, Unknown=1, NotChecked=0, Total=240 [2023-11-29 02:17:10,580 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 384 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:10,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 656 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 02:17:10,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2023-11-29 02:17:10,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1989. [2023-11-29 02:17:10,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1781 states have (on average 1.5648512071869736) internal successors, (2787), 1842 states have internal predecessors, (2787), 139 states have call successors, (139), 9 states have call predecessors, (139), 9 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 02:17:10,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 3065 transitions. [2023-11-29 02:17:10,714 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 3065 transitions. Word has length 155 [2023-11-29 02:17:10,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:10,714 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 3065 transitions. [2023-11-29 02:17:10,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:17:10,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 3065 transitions. [2023-11-29 02:17:10,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-29 02:17:10,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:10,715 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:17:10,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2023-11-29 02:17:10,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:10,916 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:17:10,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:10,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1403646089, now seen corresponding path program 1 times [2023-11-29 02:17:10,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:10,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092709073] [2023-11-29 02:17:10,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:10,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:10,924 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:10,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419006935] [2023-11-29 02:17:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:10,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:10,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:10,925 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:10,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 02:17:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:10,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:17:10,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:17:11,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:17:11,483 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:17:11,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:11,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092709073] [2023-11-29 02:17:11,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:11,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419006935] [2023-11-29 02:17:11,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419006935] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:17:11,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:17:11,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 02:17:11,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200569210] [2023-11-29 02:17:11,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:17:11,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:17:11,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:11,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:17:11,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:17:11,486 INFO L87 Difference]: Start difference. First operand 1989 states and 3065 transitions. Second operand has 10 states, 9 states have (on average 22.666666666666668) internal successors, (204), 10 states have internal predecessors, (204), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 02:17:13,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:13,289 INFO L93 Difference]: Finished difference Result 2077 states and 3146 transitions. [2023-11-29 02:17:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:17:13,290 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 22.666666666666668) internal successors, (204), 10 states have internal predecessors, (204), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 159 [2023-11-29 02:17:13,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:13,293 INFO L225 Difference]: With dead ends: 2077 [2023-11-29 02:17:13,293 INFO L226 Difference]: Without dead ends: 2076 [2023-11-29 02:17:13,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=199, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:17:13,294 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 618 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:13,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 509 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 02:17:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2023-11-29 02:17:13,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 2033. [2023-11-29 02:17:13,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1821 states have (on average 1.5535420098846788) internal successors, (2829), 1882 states have internal predecessors, (2829), 143 states have call successors, (143), 9 states have call predecessors, (143), 9 states have return successors, (143), 141 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 02:17:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 3115 transitions. [2023-11-29 02:17:13,439 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 3115 transitions. Word has length 159 [2023-11-29 02:17:13,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:13,440 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 3115 transitions. [2023-11-29 02:17:13,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 22.666666666666668) internal successors, (204), 10 states have internal predecessors, (204), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 02:17:13,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 3115 transitions. [2023-11-29 02:17:13,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-29 02:17:13,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:13,441 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:17:13,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2023-11-29 02:17:13,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:13,641 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:17:13,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:13,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2081384140, now seen corresponding path program 1 times [2023-11-29 02:17:13,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:13,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976614553] [2023-11-29 02:17:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:13,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:13,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:13,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870605758] [2023-11-29 02:17:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:13,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:13,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:13,651 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:13,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 02:17:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:13,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:17:13,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:16,343 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 18 proven. 55 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 02:17:16,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:17:17,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:17,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976614553] [2023-11-29 02:17:17,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:17,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870605758] [2023-11-29 02:17:17,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870605758] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:17:17,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:17:17,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 02:17:17,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499373867] [2023-11-29 02:17:17,262 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:17:17,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:17:17,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:17,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:17:17,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:17:17,263 INFO L87 Difference]: Start difference. First operand 2033 states and 3115 transitions. Second operand has 13 states, 12 states have (on average 9.666666666666666) internal successors, (116), 12 states have internal predecessors, (116), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:17:33,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:33,740 INFO L93 Difference]: Finished difference Result 2374 states and 3440 transitions. [2023-11-29 02:17:33,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:17:33,740 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.666666666666666) internal successors, (116), 12 states have internal predecessors, (116), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 159 [2023-11-29 02:17:33,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:33,743 INFO L225 Difference]: With dead ends: 2374 [2023-11-29 02:17:33,743 INFO L226 Difference]: Without dead ends: 2370 [2023-11-29 02:17:33,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:17:33,743 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 706 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:33,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 897 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2023-11-29 02:17:33,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2023-11-29 02:17:33,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 2033. [2023-11-29 02:17:33,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1821 states have (on average 1.540362438220758) internal successors, (2805), 1882 states have internal predecessors, (2805), 143 states have call successors, (143), 9 states have call predecessors, (143), 9 states have return successors, (143), 141 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 02:17:33,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 3091 transitions. [2023-11-29 02:17:33,913 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 3091 transitions. Word has length 159 [2023-11-29 02:17:33,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:33,913 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 3091 transitions. [2023-11-29 02:17:33,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.666666666666666) internal successors, (116), 12 states have internal predecessors, (116), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 02:17:33,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 3091 transitions. [2023-11-29 02:17:33,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-29 02:17:33,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:33,914 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:17:33,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 02:17:34,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:34,114 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:17:34,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:34,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1500360030, now seen corresponding path program 1 times [2023-11-29 02:17:34,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:34,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441627869] [2023-11-29 02:17:34,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:34,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:34,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:34,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072179201] [2023-11-29 02:17:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:34,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:34,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:34,131 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:34,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 02:17:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:34,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:17:34,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:17:34,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:17:34,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:34,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441627869] [2023-11-29 02:17:34,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:34,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072179201] [2023-11-29 02:17:34,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072179201] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:17:34,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:17:34,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 02:17:34,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176105874] [2023-11-29 02:17:34,592 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:17:34,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:17:34,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:34,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:17:34,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:17:34,593 INFO L87 Difference]: Start difference. First operand 2033 states and 3091 transitions. Second operand has 5 states, 4 states have (on average 27.5) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:17:34,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:34,889 INFO L93 Difference]: Finished difference Result 2040 states and 3091 transitions. [2023-11-29 02:17:34,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:17:34,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 27.5) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 164 [2023-11-29 02:17:34,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:34,892 INFO L225 Difference]: With dead ends: 2040 [2023-11-29 02:17:34,892 INFO L226 Difference]: Without dead ends: 2039 [2023-11-29 02:17:34,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:17:34,893 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 93 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:34,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 287 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:17:34,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2023-11-29 02:17:35,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 2033. [2023-11-29 02:17:35,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1821 states have (on average 1.5398132894014278) internal successors, (2804), 1882 states have internal predecessors, (2804), 143 states have call successors, (143), 9 states have call predecessors, (143), 9 states have return successors, (143), 141 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 02:17:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 3090 transitions. [2023-11-29 02:17:35,039 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 3090 transitions. Word has length 164 [2023-11-29 02:17:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:35,039 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 3090 transitions. [2023-11-29 02:17:35,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.5) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:17:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 3090 transitions. [2023-11-29 02:17:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-29 02:17:35,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:35,040 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:17:35,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 02:17:35,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:35,241 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:17:35,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:35,241 INFO L85 PathProgramCache]: Analyzing trace with hash -725450462, now seen corresponding path program 2 times [2023-11-29 02:17:35,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:35,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994075918] [2023-11-29 02:17:35,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:35,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:35,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:35,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458231099] [2023-11-29 02:17:35,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:17:35,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:35,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:35,249 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:35,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 02:17:35,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:17:35,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:17:35,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:17:35,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 3 proven. 67 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 02:17:35,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:17:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:17:36,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:36,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994075918] [2023-11-29 02:17:36,755 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:36,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458231099] [2023-11-29 02:17:36,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458231099] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:17:36,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:17:36,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2023-11-29 02:17:36,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079211045] [2023-11-29 02:17:36,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:17:36,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 02:17:36,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:36,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 02:17:36,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:17:36,757 INFO L87 Difference]: Start difference. First operand 2033 states and 3090 transitions. Second operand has 20 states, 17 states have (on average 13.117647058823529) internal successors, (223), 18 states have internal predecessors, (223), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 10 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 02:17:46,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:46,262 INFO L93 Difference]: Finished difference Result 2341 states and 3480 transitions. [2023-11-29 02:17:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 02:17:46,262 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 13.117647058823529) internal successors, (223), 18 states have internal predecessors, (223), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 10 states have call predecessors, (24), 8 states have call successors, (24) Word has length 167 [2023-11-29 02:17:46,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:46,265 INFO L225 Difference]: With dead ends: 2341 [2023-11-29 02:17:46,265 INFO L226 Difference]: Without dead ends: 2339 [2023-11-29 02:17:46,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=585, Invalid=1577, Unknown=0, NotChecked=0, Total=2162 [2023-11-29 02:17:46,266 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1840 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:46,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 837 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-29 02:17:46,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2023-11-29 02:17:46,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2032. [2023-11-29 02:17:46,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2032 states, 1821 states have (on average 1.5260845689181768) internal successors, (2779), 1881 states have internal predecessors, (2779), 143 states have call successors, (143), 9 states have call predecessors, (143), 9 states have return successors, (143), 141 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 02:17:46,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 3065 transitions. [2023-11-29 02:17:46,450 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 3065 transitions. Word has length 167 [2023-11-29 02:17:46,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:46,450 INFO L495 AbstractCegarLoop]: Abstraction has 2032 states and 3065 transitions. [2023-11-29 02:17:46,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 13.117647058823529) internal successors, (223), 18 states have internal predecessors, (223), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 10 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 02:17:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 3065 transitions. [2023-11-29 02:17:46,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 02:17:46,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:46,451 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:17:46,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2023-11-29 02:17:46,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:46,651 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:17:46,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:46,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1373189340, now seen corresponding path program 2 times [2023-11-29 02:17:46,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:46,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9719025] [2023-11-29 02:17:46,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:46,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:46,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:46,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083002684] [2023-11-29 02:17:46,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:17:46,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:46,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:46,660 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:46,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 02:17:46,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:17:46,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:17:46,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 02:17:46,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 15 proven. 80 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 02:17:47,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:17:55,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:55,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9719025] [2023-11-29 02:17:55,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:55,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083002684] [2023-11-29 02:17:55,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083002684] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:17:55,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:17:55,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 02:17:55,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900092797] [2023-11-29 02:17:55,734 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:17:55,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 02:17:55,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:55,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 02:17:55,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=248, Unknown=2, NotChecked=0, Total=306 [2023-11-29 02:17:55,735 INFO L87 Difference]: Start difference. First operand 2032 states and 3065 transitions. Second operand has 15 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 5 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 02:18:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:18:00,289 INFO L93 Difference]: Finished difference Result 2037 states and 3066 transitions. [2023-11-29 02:18:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:18:00,289 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 5 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 169 [2023-11-29 02:18:00,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:18:00,292 INFO L225 Difference]: With dead ends: 2037 [2023-11-29 02:18:00,292 INFO L226 Difference]: Without dead ends: 2036 [2023-11-29 02:18:00,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=132, Invalid=568, Unknown=2, NotChecked=0, Total=702 [2023-11-29 02:18:00,292 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 695 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:18:00,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 687 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 02:18:00,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2023-11-29 02:18:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 2032. [2023-11-29 02:18:00,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2032 states, 1821 states have (on average 1.5255354200988467) internal successors, (2778), 1881 states have internal predecessors, (2778), 143 states have call successors, (143), 9 states have call predecessors, (143), 9 states have return successors, (143), 141 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 02:18:00,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 3064 transitions. [2023-11-29 02:18:00,463 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 3064 transitions. Word has length 169 [2023-11-29 02:18:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:18:00,463 INFO L495 AbstractCegarLoop]: Abstraction has 2032 states and 3064 transitions. [2023-11-29 02:18:00,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 5 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 02:18:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 3064 transitions. [2023-11-29 02:18:00,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 02:18:00,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:18:00,465 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:18:00,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 02:18:00,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2023-11-29 02:18:00,665 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:18:00,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:18:00,665 INFO L85 PathProgramCache]: Analyzing trace with hash -569685387, now seen corresponding path program 1 times [2023-11-29 02:18:00,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:18:00,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319190337] [2023-11-29 02:18:00,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:00,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:18:00,673 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:18:00,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1746630142] [2023-11-29 02:18:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:00,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:00,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:18:00,674 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:18:00,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 02:18:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:18:00,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:18:00,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:18:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:18:00,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:18:00,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:18:00,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319190337] [2023-11-29 02:18:00,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:18:00,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746630142] [2023-11-29 02:18:00,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746630142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:18:00,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:18:00,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:18:00,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253792310] [2023-11-29 02:18:00,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:18:00,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:18:00,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:18:00,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:18:00,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:18:00,822 INFO L87 Difference]: Start difference. First operand 2032 states and 3064 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 02:18:01,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:18:01,169 INFO L93 Difference]: Finished difference Result 3712 states and 5708 transitions. [2023-11-29 02:18:01,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:18:01,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 169 [2023-11-29 02:18:01,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:18:01,172 INFO L225 Difference]: With dead ends: 3712 [2023-11-29 02:18:01,172 INFO L226 Difference]: Without dead ends: 2412 [2023-11-29 02:18:01,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:18:01,174 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 231 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:18:01,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 754 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:18:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2023-11-29 02:18:01,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 1775. [2023-11-29 02:18:01,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1585 states have (on average 1.5123028391167193) internal successors, (2397), 1645 states have internal predecessors, (2397), 122 states have call successors, (122), 9 states have call predecessors, (122), 9 states have return successors, (122), 120 states have call predecessors, (122), 122 states have call successors, (122) [2023-11-29 02:18:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2641 transitions. [2023-11-29 02:18:01,328 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2641 transitions. Word has length 169 [2023-11-29 02:18:01,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:18:01,328 INFO L495 AbstractCegarLoop]: Abstraction has 1775 states and 2641 transitions. [2023-11-29 02:18:01,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 02:18:01,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2641 transitions. [2023-11-29 02:18:01,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 02:18:01,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:18:01,329 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:18:01,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 02:18:01,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 02:18:01,529 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:18:01,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:18:01,529 INFO L85 PathProgramCache]: Analyzing trace with hash -755115917, now seen corresponding path program 1 times [2023-11-29 02:18:01,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:18:01,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675990426] [2023-11-29 02:18:01,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:01,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:18:01,537 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:18:01,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142656006] [2023-11-29 02:18:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:01,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:01,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:18:01,538 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:18:01,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 02:18:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:18:01,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:18:01,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:18:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 02:18:01,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:18:01,969 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:18:01,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:18:01,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675990426] [2023-11-29 02:18:01,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:18:01,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142656006] [2023-11-29 02:18:01,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142656006] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:18:01,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:18:01,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-11-29 02:18:01,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028461322] [2023-11-29 02:18:01,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:18:01,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 02:18:01,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:18:01,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 02:18:01,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:18:01,971 INFO L87 Difference]: Start difference. First operand 1775 states and 2641 transitions. Second operand has 18 states, 18 states have (on average 12.88888888888889) internal successors, (232), 18 states have internal predecessors, (232), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-29 02:18:02,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:18:02,444 INFO L93 Difference]: Finished difference Result 3312 states and 4978 transitions. [2023-11-29 02:18:02,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 02:18:02,444 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.88888888888889) internal successors, (232), 18 states have internal predecessors, (232), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 172 [2023-11-29 02:18:02,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:18:02,446 INFO L225 Difference]: With dead ends: 3312 [2023-11-29 02:18:02,446 INFO L226 Difference]: Without dead ends: 2096 [2023-11-29 02:18:02,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 02:18:02,448 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 374 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:18:02,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1645 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:18:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2023-11-29 02:18:02,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1971. [2023-11-29 02:18:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1762 states have (on average 1.4909194097616345) internal successors, (2627), 1823 states have internal predecessors, (2627), 135 states have call successors, (135), 15 states have call predecessors, (135), 15 states have return successors, (135), 132 states have call predecessors, (135), 135 states have call successors, (135) [2023-11-29 02:18:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 2897 transitions. [2023-11-29 02:18:02,614 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 2897 transitions. Word has length 172 [2023-11-29 02:18:02,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:18:02,615 INFO L495 AbstractCegarLoop]: Abstraction has 1971 states and 2897 transitions. [2023-11-29 02:18:02,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.88888888888889) internal successors, (232), 18 states have internal predecessors, (232), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-29 02:18:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 2897 transitions. [2023-11-29 02:18:02,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 02:18:02,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:18:02,616 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:18:02,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 02:18:02,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:02,816 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:18:02,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:18:02,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1387928053, now seen corresponding path program 1 times [2023-11-29 02:18:02,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:18:02,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107073131] [2023-11-29 02:18:02,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:02,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:18:02,829 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:18:02,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044130236] [2023-11-29 02:18:02,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:02,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:02,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:18:02,831 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:18:02,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 02:18:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:18:02,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:18:02,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:18:04,007 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:18:04,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:18:04,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:18:04,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107073131] [2023-11-29 02:18:04,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:18:04,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044130236] [2023-11-29 02:18:04,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044130236] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:18:04,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:18:04,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 02:18:04,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191848833] [2023-11-29 02:18:04,144 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:18:04,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:18:04,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:18:04,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:18:04,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:18:04,145 INFO L87 Difference]: Start difference. First operand 1971 states and 2897 transitions. Second operand has 11 states, 10 states have (on average 12.0) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:18:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:18:06,270 INFO L93 Difference]: Finished difference Result 2252 states and 3267 transitions. [2023-11-29 02:18:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:18:06,271 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.0) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 174 [2023-11-29 02:18:06,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:18:06,273 INFO L225 Difference]: With dead ends: 2252 [2023-11-29 02:18:06,273 INFO L226 Difference]: Without dead ends: 2250 [2023-11-29 02:18:06,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:18:06,274 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 309 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:18:06,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 624 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 02:18:06,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2023-11-29 02:18:06,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2000. [2023-11-29 02:18:06,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1789 states have (on average 1.4874231414197876) internal successors, (2661), 1850 states have internal predecessors, (2661), 137 states have call successors, (137), 15 states have call predecessors, (137), 15 states have return successors, (137), 134 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 02:18:06,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2935 transitions. [2023-11-29 02:18:06,449 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2935 transitions. Word has length 174 [2023-11-29 02:18:06,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:18:06,449 INFO L495 AbstractCegarLoop]: Abstraction has 2000 states and 2935 transitions. [2023-11-29 02:18:06,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.0) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:18:06,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2935 transitions. [2023-11-29 02:18:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-29 02:18:06,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:18:06,450 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:18:06,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 02:18:06,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:06,651 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:18:06,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:18:06,651 INFO L85 PathProgramCache]: Analyzing trace with hash -76096485, now seen corresponding path program 1 times [2023-11-29 02:18:06,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:18:06,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800498644] [2023-11-29 02:18:06,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:06,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:18:06,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:18:06,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1129499264] [2023-11-29 02:18:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:06,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:06,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:18:06,660 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:18:06,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 02:18:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:18:06,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:18:06,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:18:08,045 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 45 proven. 5 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:18:08,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:18:08,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:18:08,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800498644] [2023-11-29 02:18:08,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:18:08,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129499264] [2023-11-29 02:18:08,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129499264] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:18:08,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:18:08,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 02:18:08,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866671081] [2023-11-29 02:18:08,739 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:18:08,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:18:08,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:18:08,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:18:08,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:18:08,741 INFO L87 Difference]: Start difference. First operand 2000 states and 2935 transitions. Second operand has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:18:11,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:18:11,866 INFO L93 Difference]: Finished difference Result 2247 states and 3254 transitions. [2023-11-29 02:18:11,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:18:11,866 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 175 [2023-11-29 02:18:11,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:18:11,868 INFO L225 Difference]: With dead ends: 2247 [2023-11-29 02:18:11,868 INFO L226 Difference]: Without dead ends: 2244 [2023-11-29 02:18:11,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:18:11,869 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 300 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:18:11,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 729 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 02:18:11,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2023-11-29 02:18:12,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2162. [2023-11-29 02:18:12,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2162 states, 1939 states have (on average 1.481691593604951) internal successors, (2873), 2000 states have internal predecessors, (2873), 149 states have call successors, (149), 15 states have call predecessors, (149), 15 states have return successors, (149), 146 states have call predecessors, (149), 149 states have call successors, (149) [2023-11-29 02:18:12,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2162 states to 2162 states and 3171 transitions. [2023-11-29 02:18:12,057 INFO L78 Accepts]: Start accepts. Automaton has 2162 states and 3171 transitions. Word has length 175 [2023-11-29 02:18:12,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:18:12,058 INFO L495 AbstractCegarLoop]: Abstraction has 2162 states and 3171 transitions. [2023-11-29 02:18:12,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:18:12,058 INFO L276 IsEmpty]: Start isEmpty. Operand 2162 states and 3171 transitions. [2023-11-29 02:18:12,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 02:18:12,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:18:12,058 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:18:12,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 02:18:12,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:12,259 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:18:12,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:18:12,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1875855344, now seen corresponding path program 1 times [2023-11-29 02:18:12,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:18:12,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152167377] [2023-11-29 02:18:12,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:12,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:18:12,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:18:12,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228607393] [2023-11-29 02:18:12,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:12,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:12,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:18:12,268 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:18:12,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 02:18:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:18:12,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:18:12,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:18:12,424 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 55 proven. 5 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:18:12,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:18:12,523 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 55 proven. 5 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:18:12,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:18:12,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152167377] [2023-11-29 02:18:12,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:18:12,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228607393] [2023-11-29 02:18:12,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228607393] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:18:12,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:18:12,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2023-11-29 02:18:12,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403584814] [2023-11-29 02:18:12,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:18:12,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:18:12,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:18:12,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:18:12,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:18:12,525 INFO L87 Difference]: Start difference. First operand 2162 states and 3171 transitions. Second operand has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 02:18:13,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:18:13,813 INFO L93 Difference]: Finished difference Result 2660 states and 3826 transitions. [2023-11-29 02:18:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:18:13,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 176 [2023-11-29 02:18:13,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:18:13,817 INFO L225 Difference]: With dead ends: 2660 [2023-11-29 02:18:13,817 INFO L226 Difference]: Without dead ends: 2658 [2023-11-29 02:18:13,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 346 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:18:13,818 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 604 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:18:13,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 925 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:18:13,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2023-11-29 02:18:14,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2463. [2023-11-29 02:18:14,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 2216 states have (on average 1.5036101083032491) internal successors, (3332), 2277 states have internal predecessors, (3332), 173 states have call successors, (173), 15 states have call predecessors, (173), 15 states have return successors, (173), 170 states have call predecessors, (173), 173 states have call successors, (173) [2023-11-29 02:18:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3678 transitions. [2023-11-29 02:18:14,028 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3678 transitions. Word has length 176 [2023-11-29 02:18:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:18:14,028 INFO L495 AbstractCegarLoop]: Abstraction has 2463 states and 3678 transitions. [2023-11-29 02:18:14,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 02:18:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3678 transitions. [2023-11-29 02:18:14,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 02:18:14,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:18:14,029 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:18:14,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 02:18:14,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2023-11-29 02:18:14,230 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:18:14,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:18:14,230 INFO L85 PathProgramCache]: Analyzing trace with hash -114271651, now seen corresponding path program 1 times [2023-11-29 02:18:14,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:18:14,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057650733] [2023-11-29 02:18:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:14,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:18:14,239 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:18:14,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396552302] [2023-11-29 02:18:14,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:14,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:14,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:18:14,241 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:18:14,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 02:18:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:18:14,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 02:18:14,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:18:16,007 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 56 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-29 02:18:16,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:18:19,050 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 56 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-29 02:18:19,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:18:19,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057650733] [2023-11-29 02:18:19,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:18:19,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396552302] [2023-11-29 02:18:19,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396552302] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:18:19,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:18:19,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-11-29 02:18:19,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415076026] [2023-11-29 02:18:19,051 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:18:19,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 02:18:19,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:18:19,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 02:18:19,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:18:19,053 INFO L87 Difference]: Start difference. First operand 2463 states and 3678 transitions. Second operand has 23 states, 22 states have (on average 11.090909090909092) internal successors, (244), 23 states have internal predecessors, (244), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2023-11-29 02:18:25,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:18:29,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:18:32,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:18:52,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:18:58,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:18:58,410 INFO L93 Difference]: Finished difference Result 2808 states and 4036 transitions. [2023-11-29 02:18:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 02:18:58,411 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 11.090909090909092) internal successors, (244), 23 states have internal predecessors, (244), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) Word has length 177 [2023-11-29 02:18:58,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:18:58,414 INFO L225 Difference]: With dead ends: 2808 [2023-11-29 02:18:58,414 INFO L226 Difference]: Without dead ends: 2806 [2023-11-29 02:18:58,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 831 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=682, Invalid=2978, Unknown=0, NotChecked=0, Total=3660 [2023-11-29 02:18:58,415 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1590 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 4026 mSolverCounterSat, 167 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 4195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 4026 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:18:58,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 892 Invalid, 4195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 4026 Invalid, 2 Unknown, 0 Unchecked, 32.9s Time] [2023-11-29 02:18:58,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2023-11-29 02:18:58,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2663. [2023-11-29 02:18:58,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 2402 states have (on average 1.4929225645295587) internal successors, (3586), 2463 states have internal predecessors, (3586), 187 states have call successors, (187), 15 states have call predecessors, (187), 15 states have return successors, (187), 184 states have call predecessors, (187), 187 states have call successors, (187) [2023-11-29 02:18:58,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 3960 transitions. [2023-11-29 02:18:58,721 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 3960 transitions. Word has length 177 [2023-11-29 02:18:58,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:18:58,721 INFO L495 AbstractCegarLoop]: Abstraction has 2663 states and 3960 transitions. [2023-11-29 02:18:58,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 11.090909090909092) internal successors, (244), 23 states have internal predecessors, (244), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2023-11-29 02:18:58,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 3960 transitions. [2023-11-29 02:18:58,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-29 02:18:58,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:18:58,722 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:18:58,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 02:18:58,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:58,923 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:18:58,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:18:58,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1189276110, now seen corresponding path program 1 times [2023-11-29 02:18:58,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:18:58,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670756388] [2023-11-29 02:18:58,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:58,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:18:58,932 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:18:58,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [22213843] [2023-11-29 02:18:58,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:18:58,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:18:58,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:18:58,933 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:18:58,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 02:18:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:18:59,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:18:59,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:18:59,097 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:18:59,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:18:59,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:18:59,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670756388] [2023-11-29 02:18:59,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:18:59,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22213843] [2023-11-29 02:18:59,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22213843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:18:59,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:18:59,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:18:59,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186378884] [2023-11-29 02:18:59,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:18:59,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:18:59,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:18:59,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:18:59,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:18:59,098 INFO L87 Difference]: Start difference. First operand 2663 states and 3960 transitions. Second operand has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 02:19:02,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:19:02,962 INFO L93 Difference]: Finished difference Result 4702 states and 6948 transitions. [2023-11-29 02:19:02,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:19:02,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 178 [2023-11-29 02:19:02,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:19:02,968 INFO L225 Difference]: With dead ends: 4702 [2023-11-29 02:19:02,968 INFO L226 Difference]: Without dead ends: 4666 [2023-11-29 02:19:02,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:19:02,969 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 987 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:19:02,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 1814 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 02:19:02,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2023-11-29 02:19:03,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 3600. [2023-11-29 02:19:03,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3275 states have (on average 1.556946564885496) internal successors, (5099), 3336 states have internal predecessors, (5099), 251 states have call successors, (251), 15 states have call predecessors, (251), 15 states have return successors, (251), 248 states have call predecessors, (251), 251 states have call successors, (251) [2023-11-29 02:19:03,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5601 transitions. [2023-11-29 02:19:03,380 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5601 transitions. Word has length 178 [2023-11-29 02:19:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:19:03,380 INFO L495 AbstractCegarLoop]: Abstraction has 3600 states and 5601 transitions. [2023-11-29 02:19:03,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 02:19:03,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5601 transitions. [2023-11-29 02:19:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 02:19:03,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:19:03,381 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:19:03,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2023-11-29 02:19:03,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2023-11-29 02:19:03,582 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:19:03,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:19:03,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1787146340, now seen corresponding path program 1 times [2023-11-29 02:19:03,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:19:03,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008872615] [2023-11-29 02:19:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:03,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:19:03,590 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:19:03,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1393722275] [2023-11-29 02:19:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:03,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:03,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:19:03,591 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:19:03,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 02:19:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:19:03,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:19:03,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:19:03,939 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 13 proven. 53 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:19:03,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:19:04,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:19:04,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008872615] [2023-11-29 02:19:04,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:19:04,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393722275] [2023-11-29 02:19:04,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393722275] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:19:04,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:19:04,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:19:04,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478326406] [2023-11-29 02:19:04,188 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:19:04,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:19:04,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:19:04,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:19:04,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:19:04,189 INFO L87 Difference]: Start difference. First operand 3600 states and 5601 transitions. Second operand has 9 states, 8 states have (on average 15.625) internal successors, (125), 9 states have internal predecessors, (125), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:19:06,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:19:06,106 INFO L93 Difference]: Finished difference Result 4118 states and 6281 transitions. [2023-11-29 02:19:06,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:19:06,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.625) internal successors, (125), 9 states have internal predecessors, (125), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 179 [2023-11-29 02:19:06,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:19:06,111 INFO L225 Difference]: With dead ends: 4118 [2023-11-29 02:19:06,111 INFO L226 Difference]: Without dead ends: 4115 [2023-11-29 02:19:06,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:19:06,112 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 1084 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:19:06,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 890 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 02:19:06,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2023-11-29 02:19:06,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 3872. [2023-11-29 02:19:06,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3872 states, 3527 states have (on average 1.5653529912106605) internal successors, (5521), 3588 states have internal predecessors, (5521), 271 states have call successors, (271), 15 states have call predecessors, (271), 15 states have return successors, (271), 268 states have call predecessors, (271), 271 states have call successors, (271) [2023-11-29 02:19:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 6063 transitions. [2023-11-29 02:19:06,585 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 6063 transitions. Word has length 179 [2023-11-29 02:19:06,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:19:06,585 INFO L495 AbstractCegarLoop]: Abstraction has 3872 states and 6063 transitions. [2023-11-29 02:19:06,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.625) internal successors, (125), 9 states have internal predecessors, (125), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:19:06,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 6063 transitions. [2023-11-29 02:19:06,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 02:19:06,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:19:06,586 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:19:06,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2023-11-29 02:19:06,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2023-11-29 02:19:06,786 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:19:06,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:19:06,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1277918308, now seen corresponding path program 2 times [2023-11-29 02:19:06,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:19:06,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622957229] [2023-11-29 02:19:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:06,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:19:06,794 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:19:06,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508583642] [2023-11-29 02:19:06,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:19:06,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:06,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:19:06,795 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:19:06,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 02:19:06,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:19:06,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:19:06,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:19:06,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:19:07,085 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:19:07,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:19:15,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:19:15,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622957229] [2023-11-29 02:19:15,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:19:15,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508583642] [2023-11-29 02:19:15,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508583642] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:19:15,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:19:15,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:19:15,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047881251] [2023-11-29 02:19:15,155 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:19:15,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:19:15,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:19:15,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:19:15,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=85, Unknown=2, NotChecked=0, Total=110 [2023-11-29 02:19:15,156 INFO L87 Difference]: Start difference. First operand 3872 states and 6063 transitions. Second operand has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 02:19:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:19:18,437 INFO L93 Difference]: Finished difference Result 5155 states and 8045 transitions. [2023-11-29 02:19:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:19:18,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 179 [2023-11-29 02:19:18,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:19:18,443 INFO L225 Difference]: With dead ends: 5155 [2023-11-29 02:19:18,443 INFO L226 Difference]: Without dead ends: 5148 [2023-11-29 02:19:18,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=119, Invalid=299, Unknown=2, NotChecked=0, Total=420 [2023-11-29 02:19:18,444 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 870 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:19:18,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 845 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 02:19:18,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5148 states. [2023-11-29 02:19:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5148 to 4392. [2023-11-29 02:19:18,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4392 states, 4015 states have (on average 1.5628891656288917) internal successors, (6275), 4076 states have internal predecessors, (6275), 303 states have call successors, (303), 15 states have call predecessors, (303), 15 states have return successors, (303), 300 states have call predecessors, (303), 303 states have call successors, (303) [2023-11-29 02:19:18,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 6881 transitions. [2023-11-29 02:19:18,938 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 6881 transitions. Word has length 179 [2023-11-29 02:19:18,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:19:18,938 INFO L495 AbstractCegarLoop]: Abstraction has 4392 states and 6881 transitions. [2023-11-29 02:19:18,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 02:19:18,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 6881 transitions. [2023-11-29 02:19:18,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 02:19:18,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:19:18,940 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:19:18,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2023-11-29 02:19:19,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:19,140 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:19:19,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:19:19,140 INFO L85 PathProgramCache]: Analyzing trace with hash -203191728, now seen corresponding path program 1 times [2023-11-29 02:19:19,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:19:19,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123869312] [2023-11-29 02:19:19,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:19,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:19:19,148 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:19:19,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117640262] [2023-11-29 02:19:19,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:19,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:19,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:19:19,149 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:19:19,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 02:19:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:19:19,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:19:19,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:19:19,825 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 02:19:19,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:19:19,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:19:19,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123869312] [2023-11-29 02:19:19,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:19:19,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117640262] [2023-11-29 02:19:19,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117640262] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:19:19,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:19:19,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:19:19,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101765300] [2023-11-29 02:19:19,930 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:19:19,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:19:19,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:19:19,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:19:19,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:19:19,931 INFO L87 Difference]: Start difference. First operand 4392 states and 6881 transitions. Second operand has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 02:19:22,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:19:22,153 INFO L93 Difference]: Finished difference Result 4460 states and 6931 transitions. [2023-11-29 02:19:22,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:19:22,153 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 185 [2023-11-29 02:19:22,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:19:22,157 INFO L225 Difference]: With dead ends: 4460 [2023-11-29 02:19:22,157 INFO L226 Difference]: Without dead ends: 4458 [2023-11-29 02:19:22,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:19:22,158 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 269 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:19:22,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 614 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 02:19:22,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2023-11-29 02:19:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4401. [2023-11-29 02:19:22,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4401 states, 4022 states have (on average 1.5614122327200397) internal successors, (6280), 4084 states have internal predecessors, (6280), 305 states have call successors, (305), 15 states have call predecessors, (305), 15 states have return successors, (305), 301 states have call predecessors, (305), 305 states have call successors, (305) [2023-11-29 02:19:22,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4401 states to 4401 states and 6890 transitions. [2023-11-29 02:19:22,641 INFO L78 Accepts]: Start accepts. Automaton has 4401 states and 6890 transitions. Word has length 185 [2023-11-29 02:19:22,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:19:22,641 INFO L495 AbstractCegarLoop]: Abstraction has 4401 states and 6890 transitions. [2023-11-29 02:19:22,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 02:19:22,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4401 states and 6890 transitions. [2023-11-29 02:19:22,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 02:19:22,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:19:22,642 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:19:22,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 02:19:22,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:22,843 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:19:22,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:19:22,843 INFO L85 PathProgramCache]: Analyzing trace with hash -2003976061, now seen corresponding path program 1 times [2023-11-29 02:19:22,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:19:22,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53591934] [2023-11-29 02:19:22,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:22,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:19:22,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:19:22,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2070747972] [2023-11-29 02:19:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:22,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:22,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:19:22,855 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:19:22,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 02:19:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:19:22,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:19:22,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:19:23,580 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 02:19:23,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:19:24,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:19:24,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53591934] [2023-11-29 02:19:24,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:19:24,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070747972] [2023-11-29 02:19:24,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070747972] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:19:24,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:19:24,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:19:24,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144347931] [2023-11-29 02:19:24,020 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:19:24,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:19:24,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:19:24,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:19:24,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:19:24,021 INFO L87 Difference]: Start difference. First operand 4401 states and 6890 transitions. Second operand has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 02:19:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:19:26,837 INFO L93 Difference]: Finished difference Result 4458 states and 6927 transitions. [2023-11-29 02:19:26,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:19:26,837 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 186 [2023-11-29 02:19:26,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:19:26,843 INFO L225 Difference]: With dead ends: 4458 [2023-11-29 02:19:26,843 INFO L226 Difference]: Without dead ends: 4456 [2023-11-29 02:19:26,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:19:26,843 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 262 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:19:26,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 636 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 02:19:26,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2023-11-29 02:19:27,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 4402. [2023-11-29 02:19:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4402 states, 4023 states have (on average 1.5605269699229432) internal successors, (6278), 4085 states have internal predecessors, (6278), 305 states have call successors, (305), 15 states have call predecessors, (305), 15 states have return successors, (305), 301 states have call predecessors, (305), 305 states have call successors, (305) [2023-11-29 02:19:27,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4402 states to 4402 states and 6888 transitions. [2023-11-29 02:19:27,370 INFO L78 Accepts]: Start accepts. Automaton has 4402 states and 6888 transitions. Word has length 186 [2023-11-29 02:19:27,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:19:27,371 INFO L495 AbstractCegarLoop]: Abstraction has 4402 states and 6888 transitions. [2023-11-29 02:19:27,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 02:19:27,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4402 states and 6888 transitions. [2023-11-29 02:19:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 02:19:27,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:19:27,372 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:19:27,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2023-11-29 02:19:27,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:27,572 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:19:27,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:19:27,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1993715534, now seen corresponding path program 1 times [2023-11-29 02:19:27,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:19:27,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427404789] [2023-11-29 02:19:27,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:27,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:19:27,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:19:27,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103763924] [2023-11-29 02:19:27,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:27,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:27,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:19:27,582 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:19:27,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 02:19:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:19:27,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:19:27,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:19:30,277 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 51 proven. 23 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 02:19:30,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:19:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 34 proven. 40 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 02:19:31,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:19:31,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427404789] [2023-11-29 02:19:31,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:19:31,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103763924] [2023-11-29 02:19:31,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103763924] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:19:31,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:19:31,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2023-11-29 02:19:31,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853082876] [2023-11-29 02:19:31,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:19:31,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 02:19:31,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:19:31,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 02:19:31,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:19:31,099 INFO L87 Difference]: Start difference. First operand 4402 states and 6888 transitions. Second operand has 18 states, 17 states have (on average 14.941176470588236) internal successors, (254), 18 states have internal predecessors, (254), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 02:19:48,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:19:48,647 INFO L93 Difference]: Finished difference Result 4521 states and 6955 transitions. [2023-11-29 02:19:48,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 02:19:48,648 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 14.941176470588236) internal successors, (254), 18 states have internal predecessors, (254), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 187 [2023-11-29 02:19:48,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:19:48,653 INFO L225 Difference]: With dead ends: 4521 [2023-11-29 02:19:48,653 INFO L226 Difference]: Without dead ends: 4496 [2023-11-29 02:19:48,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=212, Invalid=910, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:19:48,655 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 760 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:19:48,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 745 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2023-11-29 02:19:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2023-11-29 02:19:49,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 4397. [2023-11-29 02:19:49,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 4020 states have (on average 1.5472636815920398) internal successors, (6220), 4081 states have internal predecessors, (6220), 304 states have call successors, (304), 14 states have call predecessors, (304), 14 states have return successors, (304), 301 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 02:19:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 6828 transitions. [2023-11-29 02:19:49,179 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 6828 transitions. Word has length 187 [2023-11-29 02:19:49,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:19:49,180 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 6828 transitions. [2023-11-29 02:19:49,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 14.941176470588236) internal successors, (254), 18 states have internal predecessors, (254), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 02:19:49,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 6828 transitions. [2023-11-29 02:19:49,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-29 02:19:49,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:19:49,181 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:19:49,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 02:19:49,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:49,382 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:19:49,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:19:49,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1704333064, now seen corresponding path program 1 times [2023-11-29 02:19:49,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:19:49,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203540127] [2023-11-29 02:19:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:49,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:19:49,392 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:19:49,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226286568] [2023-11-29 02:19:49,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:49,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:49,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:19:49,393 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:19:49,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 02:19:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:19:49,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:19:49,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:19:50,630 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 45 proven. 49 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-29 02:19:50,630 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:19:50,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:19:50,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203540127] [2023-11-29 02:19:50,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:19:50,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226286568] [2023-11-29 02:19:50,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226286568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:19:50,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:19:50,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 02:19:50,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3693282] [2023-11-29 02:19:50,779 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:19:50,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:19:50,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:19:50,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:19:50,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:19:50,780 INFO L87 Difference]: Start difference. First operand 4397 states and 6828 transitions. Second operand has 11 states, 10 states have (on average 13.7) internal successors, (137), 11 states have internal predecessors, (137), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 02:19:54,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:19:54,461 INFO L93 Difference]: Finished difference Result 4470 states and 6892 transitions. [2023-11-29 02:19:54,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:19:54,462 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.7) internal successors, (137), 11 states have internal predecessors, (137), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 201 [2023-11-29 02:19:54,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:19:54,466 INFO L225 Difference]: With dead ends: 4470 [2023-11-29 02:19:54,466 INFO L226 Difference]: Without dead ends: 4465 [2023-11-29 02:19:54,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:19:54,467 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 177 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:19:54,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 756 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 02:19:54,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4465 states. [2023-11-29 02:19:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4465 to 4391. [2023-11-29 02:19:54,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4014 states have (on average 1.547085201793722) internal successors, (6210), 4075 states have internal predecessors, (6210), 304 states have call successors, (304), 14 states have call predecessors, (304), 14 states have return successors, (304), 301 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 02:19:54,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6818 transitions. [2023-11-29 02:19:54,990 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6818 transitions. Word has length 201 [2023-11-29 02:19:54,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:19:54,990 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 6818 transitions. [2023-11-29 02:19:54,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.7) internal successors, (137), 11 states have internal predecessors, (137), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 02:19:54,990 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6818 transitions. [2023-11-29 02:19:54,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-29 02:19:54,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:19:54,991 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:19:54,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 02:19:55,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable91 [2023-11-29 02:19:55,191 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:19:55,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:19:55,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1048942855, now seen corresponding path program 1 times [2023-11-29 02:19:55,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:19:55,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613441537] [2023-11-29 02:19:55,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:55,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:19:55,210 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:19:55,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [762698649] [2023-11-29 02:19:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:55,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:19:55,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:19:55,211 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:19:55,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 02:19:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:19:55,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:19:55,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 6 proven. 101 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 02:20:02,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:20:03,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:03,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613441537] [2023-11-29 02:20:03,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:03,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762698649] [2023-11-29 02:20:03,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762698649] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:20:03,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:20:03,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 02:20:03,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069819610] [2023-11-29 02:20:03,473 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:20:03,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 02:20:03,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:03,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 02:20:03,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=294, Unknown=1, NotChecked=0, Total=342 [2023-11-29 02:20:03,475 INFO L87 Difference]: Start difference. First operand 4391 states and 6818 transitions. Second operand has 15 states, 14 states have (on average 10.071428571428571) internal successors, (141), 15 states have internal predecessors, (141), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 02:20:11,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:15,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:20,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:21,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:24,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:30,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:34,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:38,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:46,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:53,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:58,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:01,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:03,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:07,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:10,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:14,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:15,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:19,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:21,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:24,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:27,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:28,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:32,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:34,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:36,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:49,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:53,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:55,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:57,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:01,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:05,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:08,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:12,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:14,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:16,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:21,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:25,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:28,194 INFO L93 Difference]: Finished difference Result 4534 states and 6987 transitions. [2023-11-29 02:22:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:22:28,195 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.071428571428571) internal successors, (141), 15 states have internal predecessors, (141), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 207 [2023-11-29 02:22:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:28,199 INFO L225 Difference]: With dead ends: 4534 [2023-11-29 02:22:28,199 INFO L226 Difference]: Without dead ends: 4533 [2023-11-29 02:22:28,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 29.2s TimeCoverageRelationStatistics Valid=146, Invalid=840, Unknown=6, NotChecked=0, Total=992 [2023-11-29 02:22:28,200 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 395 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 2450 mSolverCounterSat, 16 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2450 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:28,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 989 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2450 Invalid, 17 Unknown, 0 Unchecked, 120.6s Time] [2023-11-29 02:22:28,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4533 states. [2023-11-29 02:22:28,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4533 to 4488. [2023-11-29 02:22:28,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4488 states, 4103 states have (on average 1.5415549597855227) internal successors, (6325), 4164 states have internal predecessors, (6325), 312 states have call successors, (312), 14 states have call predecessors, (312), 14 states have return successors, (312), 309 states have call predecessors, (312), 312 states have call successors, (312) [2023-11-29 02:22:28,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4488 states to 4488 states and 6949 transitions. [2023-11-29 02:22:28,746 INFO L78 Accepts]: Start accepts. Automaton has 4488 states and 6949 transitions. Word has length 207 [2023-11-29 02:22:28,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:28,746 INFO L495 AbstractCegarLoop]: Abstraction has 4488 states and 6949 transitions. [2023-11-29 02:22:28,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.071428571428571) internal successors, (141), 15 states have internal predecessors, (141), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 02:22:28,746 INFO L276 IsEmpty]: Start isEmpty. Operand 4488 states and 6949 transitions. [2023-11-29 02:22:28,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-29 02:22:28,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:28,747 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:28,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 02:22:28,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:28,948 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:22:28,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:28,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1283227159, now seen corresponding path program 1 times [2023-11-29 02:22:28,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:28,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263383285] [2023-11-29 02:22:28,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:28,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:28,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:22:28,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594289073] [2023-11-29 02:22:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:28,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:28,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:22:28,958 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:22:28,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 02:22:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:29,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:22:29,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:22:29,795 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 9 proven. 102 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 02:22:29,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:22:30,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:30,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263383285] [2023-11-29 02:22:30,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:22:30,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594289073] [2023-11-29 02:22:30,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594289073] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:22:30,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:22:30,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:22:30,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257370851] [2023-11-29 02:22:30,844 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:22:30,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:22:30,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:30,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:22:30,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:22:30,845 INFO L87 Difference]: Start difference. First operand 4488 states and 6949 transitions. Second operand has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:22:32,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:32,334 INFO L93 Difference]: Finished difference Result 4524 states and 6966 transitions. [2023-11-29 02:22:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:22:32,334 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 209 [2023-11-29 02:22:32,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:32,339 INFO L225 Difference]: With dead ends: 4524 [2023-11-29 02:22:32,339 INFO L226 Difference]: Without dead ends: 4523 [2023-11-29 02:22:32,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:22:32,340 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 195 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:32,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1019 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:22:32,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4523 states. [2023-11-29 02:22:32,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4523 to 4488. [2023-11-29 02:22:32,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4488 states, 4103 states have (on average 1.5405800633682671) internal successors, (6321), 4164 states have internal predecessors, (6321), 312 states have call successors, (312), 14 states have call predecessors, (312), 14 states have return successors, (312), 309 states have call predecessors, (312), 312 states have call successors, (312) [2023-11-29 02:22:32,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4488 states to 4488 states and 6945 transitions. [2023-11-29 02:22:32,877 INFO L78 Accepts]: Start accepts. Automaton has 4488 states and 6945 transitions. Word has length 209 [2023-11-29 02:22:32,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:32,877 INFO L495 AbstractCegarLoop]: Abstraction has 4488 states and 6945 transitions. [2023-11-29 02:22:32,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:22:32,877 INFO L276 IsEmpty]: Start isEmpty. Operand 4488 states and 6945 transitions. [2023-11-29 02:22:32,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-29 02:22:32,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:32,878 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:32,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2023-11-29 02:22:33,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:33,079 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:22:33,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:33,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1125336144, now seen corresponding path program 1 times [2023-11-29 02:22:33,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:33,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167799489] [2023-11-29 02:22:33,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:33,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:33,089 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:22:33,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51064563] [2023-11-29 02:22:33,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:33,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:33,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:22:33,090 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:22:33,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 02:22:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:33,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:22:33,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:22:34,763 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 02:22:34,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:22:35,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:35,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167799489] [2023-11-29 02:22:35,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:22:35,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51064563] [2023-11-29 02:22:35,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51064563] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:22:35,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:22:35,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 02:22:35,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953824803] [2023-11-29 02:22:35,779 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:22:35,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:22:35,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:35,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:22:35,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:22:35,780 INFO L87 Difference]: Start difference. First operand 4488 states and 6945 transitions. Second operand has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:22:39,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:39,656 INFO L93 Difference]: Finished difference Result 4557 states and 7009 transitions. [2023-11-29 02:22:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:22:39,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 210 [2023-11-29 02:22:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:39,661 INFO L225 Difference]: With dead ends: 4557 [2023-11-29 02:22:39,661 INFO L226 Difference]: Without dead ends: 4556 [2023-11-29 02:22:39,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:22:39,662 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 141 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:39,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 935 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 02:22:39,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4556 states. [2023-11-29 02:22:40,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4556 to 4488. [2023-11-29 02:22:40,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4488 states, 4103 states have (on average 1.5376553741165002) internal successors, (6309), 4164 states have internal predecessors, (6309), 312 states have call successors, (312), 14 states have call predecessors, (312), 14 states have return successors, (312), 309 states have call predecessors, (312), 312 states have call successors, (312) [2023-11-29 02:22:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4488 states to 4488 states and 6933 transitions. [2023-11-29 02:22:40,251 INFO L78 Accepts]: Start accepts. Automaton has 4488 states and 6933 transitions. Word has length 210 [2023-11-29 02:22:40,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:40,251 INFO L495 AbstractCegarLoop]: Abstraction has 4488 states and 6933 transitions. [2023-11-29 02:22:40,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:22:40,251 INFO L276 IsEmpty]: Start isEmpty. Operand 4488 states and 6933 transitions. [2023-11-29 02:22:40,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-29 02:22:40,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:40,252 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:40,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2023-11-29 02:22:40,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:40,452 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:22:40,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:40,453 INFO L85 PathProgramCache]: Analyzing trace with hash -525681973, now seen corresponding path program 1 times [2023-11-29 02:22:40,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:40,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563158672] [2023-11-29 02:22:40,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:40,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:40,462 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:22:40,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692960800] [2023-11-29 02:22:40,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:40,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:40,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:22:40,463 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:22:40,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 02:22:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:40,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:22:40,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:22:45,620 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 61 refuted. 45 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 02:22:45,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:22:45,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:45,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563158672] [2023-11-29 02:22:45,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:22:45,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692960800] [2023-11-29 02:22:45,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692960800] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:22:45,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:22:45,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:22:45,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729519366] [2023-11-29 02:22:45,823 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:22:45,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:22:45,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:45,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:22:45,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=150, Unknown=1, NotChecked=0, Total=182 [2023-11-29 02:22:45,825 INFO L87 Difference]: Start difference. First operand 4488 states and 6933 transitions. Second operand has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:22:48,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:50,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:53,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:57,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:59,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:05,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:23:05,425 INFO L93 Difference]: Finished difference Result 4514 states and 6942 transitions. [2023-11-29 02:23:05,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:23:05,425 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 211 [2023-11-29 02:23:05,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:23:05,430 INFO L225 Difference]: With dead ends: 4514 [2023-11-29 02:23:05,430 INFO L226 Difference]: Without dead ends: 4513 [2023-11-29 02:23:05,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=75, Invalid=304, Unknown=1, NotChecked=0, Total=380 [2023-11-29 02:23:05,430 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 406 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:23:05,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 954 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1721 Invalid, 2 Unknown, 0 Unchecked, 18.4s Time] [2023-11-29 02:23:05,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4513 states. [2023-11-29 02:23:06,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4513 to 4488. [2023-11-29 02:23:06,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4488 states, 4103 states have (on average 1.5366804776992444) internal successors, (6305), 4164 states have internal predecessors, (6305), 312 states have call successors, (312), 14 states have call predecessors, (312), 14 states have return successors, (312), 309 states have call predecessors, (312), 312 states have call successors, (312) [2023-11-29 02:23:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4488 states to 4488 states and 6929 transitions. [2023-11-29 02:23:06,088 INFO L78 Accepts]: Start accepts. Automaton has 4488 states and 6929 transitions. Word has length 211 [2023-11-29 02:23:06,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:23:06,088 INFO L495 AbstractCegarLoop]: Abstraction has 4488 states and 6929 transitions. [2023-11-29 02:23:06,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:23:06,088 INFO L276 IsEmpty]: Start isEmpty. Operand 4488 states and 6929 transitions. [2023-11-29 02:23:06,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 02:23:06,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:23:06,089 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:23:06,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 02:23:06,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:06,290 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:23:06,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:23:06,290 INFO L85 PathProgramCache]: Analyzing trace with hash 883728146, now seen corresponding path program 1 times [2023-11-29 02:23:06,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:23:06,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101973564] [2023-11-29 02:23:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:06,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:23:06,300 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:23:06,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125024140] [2023-11-29 02:23:06,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:06,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:06,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:23:06,301 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:23:06,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 02:23:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:23:06,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:23:06,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:23:08,119 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 45 proven. 63 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 02:23:08,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:23:08,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:23:08,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101973564] [2023-11-29 02:23:08,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:23:08,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125024140] [2023-11-29 02:23:08,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125024140] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:23:08,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:23:08,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:23:08,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205736280] [2023-11-29 02:23:08,279 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:23:08,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:23:08,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:23:08,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:23:08,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:23:08,280 INFO L87 Difference]: Start difference. First operand 4488 states and 6929 transitions. Second operand has 12 states, 11 states have (on average 13.0) internal successors, (143), 12 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:23:13,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:23:13,515 INFO L93 Difference]: Finished difference Result 4558 states and 6993 transitions. [2023-11-29 02:23:13,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:23:13,515 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.0) internal successors, (143), 12 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 212 [2023-11-29 02:23:13,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:23:13,520 INFO L225 Difference]: With dead ends: 4558 [2023-11-29 02:23:13,520 INFO L226 Difference]: Without dead ends: 4557 [2023-11-29 02:23:13,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:23:13,521 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 162 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 1940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:23:13,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1182 Invalid, 1940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-29 02:23:13,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4557 states. [2023-11-29 02:23:14,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4557 to 4488. [2023-11-29 02:23:14,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4488 states, 4103 states have (on average 1.5359493053863027) internal successors, (6302), 4164 states have internal predecessors, (6302), 312 states have call successors, (312), 14 states have call predecessors, (312), 14 states have return successors, (312), 309 states have call predecessors, (312), 312 states have call successors, (312) [2023-11-29 02:23:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4488 states to 4488 states and 6926 transitions. [2023-11-29 02:23:14,073 INFO L78 Accepts]: Start accepts. Automaton has 4488 states and 6926 transitions. Word has length 212 [2023-11-29 02:23:14,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:23:14,073 INFO L495 AbstractCegarLoop]: Abstraction has 4488 states and 6926 transitions. [2023-11-29 02:23:14,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.0) internal successors, (143), 12 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:23:14,073 INFO L276 IsEmpty]: Start isEmpty. Operand 4488 states and 6926 transitions. [2023-11-29 02:23:14,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-29 02:23:14,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:23:14,075 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:23:14,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2023-11-29 02:23:14,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:14,275 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:23:14,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:23:14,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1004200817, now seen corresponding path program 1 times [2023-11-29 02:23:14,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:23:14,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568189072] [2023-11-29 02:23:14,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:14,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:23:14,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:23:14,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2096297776] [2023-11-29 02:23:14,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:14,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:14,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:23:14,285 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:23:14,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 02:23:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:23:14,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 02:23:14,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:23:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 9 proven. 114 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 02:23:19,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:23:24,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:23:24,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568189072] [2023-11-29 02:23:24,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:23:24,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096297776] [2023-11-29 02:23:24,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096297776] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:23:24,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:23:24,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 02:23:24,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471078153] [2023-11-29 02:23:24,326 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:23:24,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:23:24,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:23:24,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:23:24,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:23:24,327 INFO L87 Difference]: Start difference. First operand 4488 states and 6926 transitions. Second operand has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:23:30,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:23:30,628 INFO L93 Difference]: Finished difference Result 4512 states and 6935 transitions. [2023-11-29 02:23:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:23:30,628 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 215 [2023-11-29 02:23:30,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:23:30,633 INFO L225 Difference]: With dead ends: 4512 [2023-11-29 02:23:30,633 INFO L226 Difference]: Without dead ends: 4511 [2023-11-29 02:23:30,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=193, Invalid=929, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:23:30,634 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 468 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 2688 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 2714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:23:30,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 810 Invalid, 2714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2688 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 02:23:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4511 states. [2023-11-29 02:23:31,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4511 to 4488. [2023-11-29 02:23:31,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4488 states, 4103 states have (on average 1.5349744089690471) internal successors, (6298), 4164 states have internal predecessors, (6298), 312 states have call successors, (312), 14 states have call predecessors, (312), 14 states have return successors, (312), 309 states have call predecessors, (312), 312 states have call successors, (312) [2023-11-29 02:23:31,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4488 states to 4488 states and 6922 transitions. [2023-11-29 02:23:31,193 INFO L78 Accepts]: Start accepts. Automaton has 4488 states and 6922 transitions. Word has length 215 [2023-11-29 02:23:31,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:23:31,194 INFO L495 AbstractCegarLoop]: Abstraction has 4488 states and 6922 transitions. [2023-11-29 02:23:31,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:23:31,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4488 states and 6922 transitions. [2023-11-29 02:23:31,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 02:23:31,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:23:31,195 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:23:31,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2023-11-29 02:23:31,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:31,395 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:23:31,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:23:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1330660721, now seen corresponding path program 1 times [2023-11-29 02:23:31,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:23:31,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283846227] [2023-11-29 02:23:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:31,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:23:31,404 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:23:31,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218999563] [2023-11-29 02:23:31,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:31,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:31,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:23:31,405 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:23:31,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 02:23:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:23:31,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:23:31,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:23:31,862 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 45 proven. 73 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 02:23:31,862 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:23:31,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:23:31,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283846227] [2023-11-29 02:23:31,993 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:23:31,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218999563] [2023-11-29 02:23:31,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218999563] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:23:31,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:23:31,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:23:31,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349078443] [2023-11-29 02:23:31,993 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:23:31,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:23:31,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:23:31,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:23:31,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:23:31,994 INFO L87 Difference]: Start difference. First operand 4488 states and 6922 transitions. Second operand has 8 states, 7 states have (on average 21.142857142857142) internal successors, (148), 8 states have internal predecessors, (148), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 02:23:35,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:23:35,166 INFO L93 Difference]: Finished difference Result 5543 states and 8446 transitions. [2023-11-29 02:23:35,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:23:35,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 21.142857142857142) internal successors, (148), 8 states have internal predecessors, (148), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 217 [2023-11-29 02:23:35,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:23:35,172 INFO L225 Difference]: With dead ends: 5543 [2023-11-29 02:23:35,172 INFO L226 Difference]: Without dead ends: 5542 [2023-11-29 02:23:35,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 268 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:23:35,174 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 497 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:23:35,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1091 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 02:23:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5542 states. [2023-11-29 02:23:35,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5542 to 5340. [2023-11-29 02:23:35,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 4891 states have (on average 1.546105090983439) internal successors, (7562), 4952 states have internal predecessors, (7562), 376 states have call successors, (376), 14 states have call predecessors, (376), 14 states have return successors, (376), 373 states have call predecessors, (376), 376 states have call successors, (376) [2023-11-29 02:23:35,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 8314 transitions. [2023-11-29 02:23:35,853 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 8314 transitions. Word has length 217 [2023-11-29 02:23:35,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:23:35,853 INFO L495 AbstractCegarLoop]: Abstraction has 5340 states and 8314 transitions. [2023-11-29 02:23:35,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 21.142857142857142) internal successors, (148), 8 states have internal predecessors, (148), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 02:23:35,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 8314 transitions. [2023-11-29 02:23:35,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-11-29 02:23:35,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:23:35,855 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:23:35,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2023-11-29 02:23:36,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:36,055 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:23:36,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:23:36,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1699190472, now seen corresponding path program 1 times [2023-11-29 02:23:36,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:23:36,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104447345] [2023-11-29 02:23:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:36,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:23:36,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:23:36,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707644246] [2023-11-29 02:23:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:36,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:36,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:23:36,065 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:23:36,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 02:23:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:23:36,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:23:36,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:23:36,941 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 02:23:36,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:23:37,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:23:37,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104447345] [2023-11-29 02:23:37,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:23:37,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707644246] [2023-11-29 02:23:37,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707644246] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:23:37,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:23:37,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:23:37,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812940531] [2023-11-29 02:23:37,533 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:23:37,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:23:37,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:23:37,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:23:37,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:23:37,534 INFO L87 Difference]: Start difference. First operand 5340 states and 8314 transitions. Second operand has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:23:43,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:23:43,027 INFO L93 Difference]: Finished difference Result 5696 states and 8740 transitions. [2023-11-29 02:23:43,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:23:43,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 218 [2023-11-29 02:23:43,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:23:43,033 INFO L225 Difference]: With dead ends: 5696 [2023-11-29 02:23:43,033 INFO L226 Difference]: Without dead ends: 5695 [2023-11-29 02:23:43,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:23:43,034 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 859 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:23:43,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 785 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 02:23:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2023-11-29 02:23:43,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 5462. [2023-11-29 02:23:43,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5005 states have (on average 1.5484515484515484) internal successors, (7750), 5066 states have internal predecessors, (7750), 384 states have call successors, (384), 14 states have call predecessors, (384), 14 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2023-11-29 02:23:43,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 8518 transitions. [2023-11-29 02:23:43,722 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 8518 transitions. Word has length 218 [2023-11-29 02:23:43,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:23:43,722 INFO L495 AbstractCegarLoop]: Abstraction has 5462 states and 8518 transitions. [2023-11-29 02:23:43,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:23:43,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 8518 transitions. [2023-11-29 02:23:43,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 02:23:43,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:23:43,723 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:23:43,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2023-11-29 02:23:43,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:43,924 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:23:43,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:23:43,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1135296941, now seen corresponding path program 1 times [2023-11-29 02:23:43,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:23:43,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323386365] [2023-11-29 02:23:43,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:43,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:23:43,933 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:23:43,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005940577] [2023-11-29 02:23:43,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:43,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:43,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:23:43,934 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:23:43,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2023-11-29 02:23:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:23:44,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-29 02:23:44,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:23:47,440 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 54 proven. 158 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-29 02:23:47,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:23:49,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:23:49,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323386365] [2023-11-29 02:23:49,061 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:23:49,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005940577] [2023-11-29 02:23:49,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005940577] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:23:49,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:23:49,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 02:23:49,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682411471] [2023-11-29 02:23:49,062 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:23:49,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:23:49,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:23:49,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:23:49,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:23:49,063 INFO L87 Difference]: Start difference. First operand 5462 states and 8518 transitions. Second operand has 16 states, 15 states have (on average 10.2) internal successors, (153), 16 states have internal predecessors, (153), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 02:23:52,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:23:52,674 INFO L93 Difference]: Finished difference Result 5487 states and 8531 transitions. [2023-11-29 02:23:52,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:23:52,674 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.2) internal successors, (153), 16 states have internal predecessors, (153), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) Word has length 219 [2023-11-29 02:23:52,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:23:52,679 INFO L225 Difference]: With dead ends: 5487 [2023-11-29 02:23:52,679 INFO L226 Difference]: Without dead ends: 5484 [2023-11-29 02:23:52,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:23:52,680 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 163 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 2335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:23:52,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 817 Invalid, 2335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 02:23:52,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5484 states. [2023-11-29 02:23:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5484 to 5462. [2023-11-29 02:23:53,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5005 states have (on average 1.546053946053946) internal successors, (7738), 5066 states have internal predecessors, (7738), 384 states have call successors, (384), 14 states have call predecessors, (384), 14 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2023-11-29 02:23:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 8506 transitions. [2023-11-29 02:23:53,365 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 8506 transitions. Word has length 219 [2023-11-29 02:23:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:23:53,366 INFO L495 AbstractCegarLoop]: Abstraction has 5462 states and 8506 transitions. [2023-11-29 02:23:53,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.2) internal successors, (153), 16 states have internal predecessors, (153), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 02:23:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 8506 transitions. [2023-11-29 02:23:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-11-29 02:23:53,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:23:53,367 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:23:53,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2023-11-29 02:23:53,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2023-11-29 02:23:53,567 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:23:53,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:23:53,567 INFO L85 PathProgramCache]: Analyzing trace with hash -834466662, now seen corresponding path program 1 times [2023-11-29 02:23:53,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:23:53,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031109263] [2023-11-29 02:23:53,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:53,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:23:53,576 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:23:53,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406343] [2023-11-29 02:23:53,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:53,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:53,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:23:53,577 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:23:53,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2023-11-29 02:23:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:23:53,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:23:53,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:23:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 45 proven. 79 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 02:23:54,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:23:54,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:23:54,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031109263] [2023-11-29 02:23:54,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:23:54,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406343] [2023-11-29 02:23:54,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406343] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:23:54,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:23:54,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:23:54,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117162686] [2023-11-29 02:23:54,284 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:23:54,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:23:54,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:23:54,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:23:54,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:23:54,285 INFO L87 Difference]: Start difference. First operand 5462 states and 8506 transitions. Second operand has 9 states, 8 states have (on average 18.875) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 02:23:58,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:23:58,912 INFO L93 Difference]: Finished difference Result 5675 states and 8610 transitions. [2023-11-29 02:23:58,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:23:58,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.875) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 220 [2023-11-29 02:23:58,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:23:58,918 INFO L225 Difference]: With dead ends: 5675 [2023-11-29 02:23:58,918 INFO L226 Difference]: Without dead ends: 5673 [2023-11-29 02:23:58,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:23:58,919 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 559 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:23:58,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1151 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 02:23:58,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5673 states. [2023-11-29 02:23:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5673 to 5462. [2023-11-29 02:23:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5005 states have (on average 1.5374625374625375) internal successors, (7695), 5066 states have internal predecessors, (7695), 384 states have call successors, (384), 14 states have call predecessors, (384), 14 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2023-11-29 02:23:59,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 8463 transitions. [2023-11-29 02:23:59,609 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 8463 transitions. Word has length 220 [2023-11-29 02:23:59,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:23:59,609 INFO L495 AbstractCegarLoop]: Abstraction has 5462 states and 8463 transitions. [2023-11-29 02:23:59,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.875) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 02:23:59,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 8463 transitions. [2023-11-29 02:23:59,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-11-29 02:23:59,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:23:59,611 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:23:59,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2023-11-29 02:23:59,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2023-11-29 02:23:59,811 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:23:59,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:23:59,811 INFO L85 PathProgramCache]: Analyzing trace with hash -325476329, now seen corresponding path program 1 times [2023-11-29 02:23:59,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:23:59,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611391886] [2023-11-29 02:23:59,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:59,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:23:59,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:23:59,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2081512721] [2023-11-29 02:23:59,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:59,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:59,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:23:59,821 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:23:59,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2023-11-29 02:23:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:23:59,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:23:59,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:02,767 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 45 proven. 85 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 02:24:02,767 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:24:06,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:06,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611391886] [2023-11-29 02:24:06,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:06,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081512721] [2023-11-29 02:24:06,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081512721] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:24:06,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:24:06,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 02:24:06,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818496861] [2023-11-29 02:24:06,186 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:24:06,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:24:06,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:06,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:24:06,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:24:06,186 INFO L87 Difference]: Start difference. First operand 5462 states and 8463 transitions. Second operand has 11 states, 10 states have (on average 15.4) internal successors, (154), 11 states have internal predecessors, (154), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:24:12,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:12,778 INFO L93 Difference]: Finished difference Result 5532 states and 8527 transitions. [2023-11-29 02:24:12,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:24:12,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 15.4) internal successors, (154), 11 states have internal predecessors, (154), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 223 [2023-11-29 02:24:12,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:12,784 INFO L225 Difference]: With dead ends: 5532 [2023-11-29 02:24:12,784 INFO L226 Difference]: Without dead ends: 5530 [2023-11-29 02:24:12,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:24:12,785 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 127 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:12,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 850 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-29 02:24:12,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2023-11-29 02:24:13,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 5462. [2023-11-29 02:24:13,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5005 states have (on average 1.533866133866134) internal successors, (7677), 5066 states have internal predecessors, (7677), 384 states have call successors, (384), 14 states have call predecessors, (384), 14 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2023-11-29 02:24:13,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 8445 transitions. [2023-11-29 02:24:13,469 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 8445 transitions. Word has length 223 [2023-11-29 02:24:13,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:13,470 INFO L495 AbstractCegarLoop]: Abstraction has 5462 states and 8445 transitions. [2023-11-29 02:24:13,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 15.4) internal successors, (154), 11 states have internal predecessors, (154), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 02:24:13,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 8445 transitions. [2023-11-29 02:24:13,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-29 02:24:13,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:13,471 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:24:13,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2023-11-29 02:24:13,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2023-11-29 02:24:13,671 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:24:13,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:13,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1499831458, now seen corresponding path program 1 times [2023-11-29 02:24:13,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:13,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061813557] [2023-11-29 02:24:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:13,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:13,682 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:13,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800198885] [2023-11-29 02:24:13,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:13,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:13,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:13,683 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:13,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2023-11-29 02:24:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:13,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:24:13,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 75 proven. 87 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-29 02:24:14,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:24:18,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:18,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061813557] [2023-11-29 02:24:18,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:18,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800198885] [2023-11-29 02:24:18,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800198885] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:24:18,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:24:18,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:24:18,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914434269] [2023-11-29 02:24:18,791 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:24:18,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:24:18,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:18,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:24:18,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=167, Unknown=1, NotChecked=0, Total=210 [2023-11-29 02:24:18,792 INFO L87 Difference]: Start difference. First operand 5462 states and 8445 transitions. Second operand has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 02:24:28,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:28,125 INFO L93 Difference]: Finished difference Result 5673 states and 8557 transitions. [2023-11-29 02:24:28,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 02:24:28,125 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 224 [2023-11-29 02:24:28,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:28,131 INFO L225 Difference]: With dead ends: 5673 [2023-11-29 02:24:28,131 INFO L226 Difference]: Without dead ends: 5670 [2023-11-29 02:24:28,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=157, Invalid=492, Unknown=1, NotChecked=0, Total=650 [2023-11-29 02:24:28,132 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 437 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:28,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1611 Invalid, 2370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-11-29 02:24:28,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5670 states. [2023-11-29 02:24:28,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5670 to 5462. [2023-11-29 02:24:28,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5005 states have (on average 1.52007992007992) internal successors, (7608), 5066 states have internal predecessors, (7608), 384 states have call successors, (384), 14 states have call predecessors, (384), 14 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2023-11-29 02:24:28,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 8376 transitions. [2023-11-29 02:24:28,811 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 8376 transitions. Word has length 224 [2023-11-29 02:24:28,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:28,811 INFO L495 AbstractCegarLoop]: Abstraction has 5462 states and 8376 transitions. [2023-11-29 02:24:28,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 02:24:28,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 8376 transitions. [2023-11-29 02:24:28,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-29 02:24:28,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:28,813 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:24:28,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2023-11-29 02:24:29,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2023-11-29 02:24:29,013 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:24:29,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:29,013 INFO L85 PathProgramCache]: Analyzing trace with hash 864271372, now seen corresponding path program 2 times [2023-11-29 02:24:29,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:29,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055309373] [2023-11-29 02:24:29,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:29,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:29,024 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:29,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49891003] [2023-11-29 02:24:29,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:24:29,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:29,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:29,025 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:29,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2023-11-29 02:24:29,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:24:29,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:24:29,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:24:29,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:24:29,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:24:29,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:29,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055309373] [2023-11-29 02:24:29,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:29,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49891003] [2023-11-29 02:24:29,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49891003] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:24:29,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:24:29,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 02:24:29,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521085782] [2023-11-29 02:24:29,623 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:24:29,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:24:29,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:29,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:24:29,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:24:29,624 INFO L87 Difference]: Start difference. First operand 5462 states and 8376 transitions. Second operand has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:24:30,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:30,632 INFO L93 Difference]: Finished difference Result 5467 states and 8376 transitions. [2023-11-29 02:24:30,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:24:30,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 229 [2023-11-29 02:24:30,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:30,638 INFO L225 Difference]: With dead ends: 5467 [2023-11-29 02:24:30,638 INFO L226 Difference]: Without dead ends: 5466 [2023-11-29 02:24:30,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:24:30,639 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 109 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:30,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 477 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:24:30,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5466 states. [2023-11-29 02:24:31,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5466 to 5462. [2023-11-29 02:24:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5005 states have (on average 1.51988011988012) internal successors, (7607), 5066 states have internal predecessors, (7607), 384 states have call successors, (384), 14 states have call predecessors, (384), 14 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2023-11-29 02:24:31,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 8375 transitions. [2023-11-29 02:24:31,328 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 8375 transitions. Word has length 229 [2023-11-29 02:24:31,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:31,328 INFO L495 AbstractCegarLoop]: Abstraction has 5462 states and 8375 transitions. [2023-11-29 02:24:31,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:24:31,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 8375 transitions. [2023-11-29 02:24:31,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 02:24:31,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:31,329 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:24:31,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2023-11-29 02:24:31,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2023-11-29 02:24:31,529 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:24:31,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:31,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1097549514, now seen corresponding path program 3 times [2023-11-29 02:24:31,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:31,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493744246] [2023-11-29 02:24:31,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:31,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:31,539 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:31,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1543762686] [2023-11-29 02:24:31,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:24:31,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:31,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:31,540 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:31,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2023-11-29 02:24:31,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 02:24:31,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:24:31,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:24:31,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:31,666 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2023-11-29 02:24:31,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:31,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:31,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493744246] [2023-11-29 02:24:31,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:31,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543762686] [2023-11-29 02:24:31,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543762686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:31,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:31,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:24:31,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492062955] [2023-11-29 02:24:31,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:31,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:24:31,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:31,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:24:31,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:24:31,668 INFO L87 Difference]: Start difference. First operand 5462 states and 8375 transitions. Second operand has 4 states, 3 states have (on average 36.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 02:24:32,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:32,493 INFO L93 Difference]: Finished difference Result 5463 states and 8375 transitions. [2023-11-29 02:24:32,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:24:32,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 36.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 234 [2023-11-29 02:24:32,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:32,500 INFO L225 Difference]: With dead ends: 5463 [2023-11-29 02:24:32,500 INFO L226 Difference]: Without dead ends: 5462 [2023-11-29 02:24:32,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:24:32,501 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 46 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:32,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 300 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:32,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5462 states. [2023-11-29 02:24:33,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5462 to 5348. [2023-11-29 02:24:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5348 states, 4899 states have (on average 1.5101041028781383) internal successors, (7398), 4960 states have internal predecessors, (7398), 376 states have call successors, (376), 14 states have call predecessors, (376), 14 states have return successors, (376), 373 states have call predecessors, (376), 376 states have call successors, (376) [2023-11-29 02:24:33,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5348 states to 5348 states and 8150 transitions. [2023-11-29 02:24:33,191 INFO L78 Accepts]: Start accepts. Automaton has 5348 states and 8150 transitions. Word has length 234 [2023-11-29 02:24:33,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:33,192 INFO L495 AbstractCegarLoop]: Abstraction has 5348 states and 8150 transitions. [2023-11-29 02:24:33,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 36.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 02:24:33,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5348 states and 8150 transitions. [2023-11-29 02:24:33,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 02:24:33,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:33,193 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:24:33,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2023-11-29 02:24:33,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2023-11-29 02:24:33,393 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:24:33,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:33,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1589775671, now seen corresponding path program 1 times [2023-11-29 02:24:33,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:33,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364732246] [2023-11-29 02:24:33,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:33,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:33,403 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:33,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992343506] [2023-11-29 02:24:33,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:33,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:33,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:33,404 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:33,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2023-11-29 02:24:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:33,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:24:33,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:24:34,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:24:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:24:34,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:34,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364732246] [2023-11-29 02:24:34,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:34,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992343506] [2023-11-29 02:24:34,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992343506] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:24:34,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:24:34,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 02:24:34,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730641998] [2023-11-29 02:24:34,374 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:24:34,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:24:34,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:34,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:24:34,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:24:34,376 INFO L87 Difference]: Start difference. First operand 5348 states and 8150 transitions. Second operand has 14 states, 13 states have (on average 24.153846153846153) internal successors, (314), 14 states have internal predecessors, (314), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 02:24:48,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:48,069 INFO L93 Difference]: Finished difference Result 13060 states and 19867 transitions. [2023-11-29 02:24:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-11-29 02:24:48,069 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 24.153846153846153) internal successors, (314), 14 states have internal predecessors, (314), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 234 [2023-11-29 02:24:48,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:48,083 INFO L225 Difference]: With dead ends: 13060 [2023-11-29 02:24:48,084 INFO L226 Difference]: Without dead ends: 13059 [2023-11-29 02:24:48,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1796 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1393, Invalid=3577, Unknown=0, NotChecked=0, Total=4970 [2023-11-29 02:24:48,086 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 3719 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 2822 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3723 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 3055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 2822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:48,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3723 Valid, 1403 Invalid, 3055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 2822 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2023-11-29 02:24:48,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13059 states. [2023-11-29 02:24:49,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13059 to 10124. [2023-11-29 02:24:49,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10124 states, 9354 states have (on average 1.5862732520846696) internal successors, (14838), 9415 states have internal predecessors, (14838), 697 states have call successors, (697), 14 states have call predecessors, (697), 14 states have return successors, (697), 694 states have call predecessors, (697), 697 states have call successors, (697) [2023-11-29 02:24:49,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10124 states to 10124 states and 16232 transitions. [2023-11-29 02:24:49,416 INFO L78 Accepts]: Start accepts. Automaton has 10124 states and 16232 transitions. Word has length 234 [2023-11-29 02:24:49,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:49,416 INFO L495 AbstractCegarLoop]: Abstraction has 10124 states and 16232 transitions. [2023-11-29 02:24:49,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 24.153846153846153) internal successors, (314), 14 states have internal predecessors, (314), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 02:24:49,416 INFO L276 IsEmpty]: Start isEmpty. Operand 10124 states and 16232 transitions. [2023-11-29 02:24:49,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 02:24:49,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:49,417 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:24:49,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Ended with exit code 0 [2023-11-29 02:24:49,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:49,618 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:24:49,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:49,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1589777273, now seen corresponding path program 1 times [2023-11-29 02:24:49,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:49,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671876180] [2023-11-29 02:24:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:49,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:49,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:49,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905300636] [2023-11-29 02:24:49,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:49,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:49,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:49,633 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:49,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2023-11-29 02:24:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:49,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:24:49,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:50,081 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 45 proven. 97 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:24:50,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:24:50,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:50,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671876180] [2023-11-29 02:24:50,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:50,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905300636] [2023-11-29 02:24:50,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905300636] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:24:50,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:24:50,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:24:50,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762027032] [2023-11-29 02:24:50,190 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:24:50,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:24:50,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:50,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:24:50,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:24:50,191 INFO L87 Difference]: Start difference. First operand 10124 states and 16232 transitions. Second operand has 7 states, 6 states have (on average 26.666666666666668) internal successors, (160), 7 states have internal predecessors, (160), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 02:24:53,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:53,271 INFO L93 Difference]: Finished difference Result 10223 states and 16307 transitions. [2023-11-29 02:24:53,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:24:53,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 26.666666666666668) internal successors, (160), 7 states have internal predecessors, (160), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 234 [2023-11-29 02:24:53,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:53,282 INFO L225 Difference]: With dead ends: 10223 [2023-11-29 02:24:53,282 INFO L226 Difference]: Without dead ends: 10222 [2023-11-29 02:24:53,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:24:53,283 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 122 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:53,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 712 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 02:24:53,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10222 states. [2023-11-29 02:24:54,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10222 to 10136. [2023-11-29 02:24:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10136 states, 9366 states have (on average 1.5852017937219731) internal successors, (14847), 9427 states have internal predecessors, (14847), 697 states have call successors, (697), 14 states have call predecessors, (697), 14 states have return successors, (697), 694 states have call predecessors, (697), 697 states have call successors, (697) [2023-11-29 02:24:54,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10136 states to 10136 states and 16241 transitions. [2023-11-29 02:24:54,675 INFO L78 Accepts]: Start accepts. Automaton has 10136 states and 16241 transitions. Word has length 234 [2023-11-29 02:24:54,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:54,675 INFO L495 AbstractCegarLoop]: Abstraction has 10136 states and 16241 transitions. [2023-11-29 02:24:54,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 26.666666666666668) internal successors, (160), 7 states have internal predecessors, (160), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 02:24:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 10136 states and 16241 transitions. [2023-11-29 02:24:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-29 02:24:54,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:54,676 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:24:54,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2023-11-29 02:24:54,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:54,877 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:24:54,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:54,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2038455032, now seen corresponding path program 1 times [2023-11-29 02:24:54,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:54,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459307336] [2023-11-29 02:24:54,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:54,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:54,887 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:54,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193056543] [2023-11-29 02:24:54,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:54,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:54,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:54,888 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:54,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2023-11-29 02:24:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:54,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:24:54,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:55,315 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:24:55,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:27,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459307336] [2023-11-29 02:25:27,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:27,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193056543] [2023-11-29 02:25:27,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193056543] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:25:27,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:25:27,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:25:27,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041759909] [2023-11-29 02:25:27,801 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:27,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:25:27,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:27,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:25:27,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=84, Unknown=8, NotChecked=0, Total=132 [2023-11-29 02:25:27,802 INFO L87 Difference]: Start difference. First operand 10136 states and 16241 transitions. Second operand has 7 states, 6 states have (on average 26.833333333333332) internal successors, (161), 7 states have internal predecessors, (161), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 02:25:31,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:31,149 INFO L93 Difference]: Finished difference Result 10266 states and 16338 transitions. [2023-11-29 02:25:31,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:25:31,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 26.833333333333332) internal successors, (161), 7 states have internal predecessors, (161), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 235 [2023-11-29 02:25:31,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:31,161 INFO L225 Difference]: With dead ends: 10266 [2023-11-29 02:25:31,161 INFO L226 Difference]: Without dead ends: 10264 [2023-11-29 02:25:31,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=94, Invalid=170, Unknown=8, NotChecked=0, Total=272 [2023-11-29 02:25:31,163 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 206 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:31,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 774 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 02:25:31,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10264 states. [2023-11-29 02:25:32,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10264 to 10151. [2023-11-29 02:25:32,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10151 states, 9381 states have (on average 1.5836264790534058) internal successors, (14856), 9442 states have internal predecessors, (14856), 697 states have call successors, (697), 14 states have call predecessors, (697), 14 states have return successors, (697), 694 states have call predecessors, (697), 697 states have call successors, (697) [2023-11-29 02:25:32,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10151 states to 10151 states and 16250 transitions. [2023-11-29 02:25:32,469 INFO L78 Accepts]: Start accepts. Automaton has 10151 states and 16250 transitions. Word has length 235 [2023-11-29 02:25:32,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:32,469 INFO L495 AbstractCegarLoop]: Abstraction has 10151 states and 16250 transitions. [2023-11-29 02:25:32,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 26.833333333333332) internal successors, (161), 7 states have internal predecessors, (161), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 02:25:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 10151 states and 16250 transitions. [2023-11-29 02:25:32,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-29 02:25:32,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:32,470 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:32,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2023-11-29 02:25:32,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:32,671 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:25:32,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:32,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1232403625, now seen corresponding path program 1 times [2023-11-29 02:25:32,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:32,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098373094] [2023-11-29 02:25:32,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:32,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:32,680 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:32,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2056976160] [2023-11-29 02:25:32,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:32,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:32,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:32,681 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:32,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2023-11-29 02:25:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:32,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:25:32,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:32,942 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-29 02:25:32,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:34,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:34,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098373094] [2023-11-29 02:25:34,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:34,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056976160] [2023-11-29 02:25:34,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056976160] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:25:34,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:25:34,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 02:25:34,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88445466] [2023-11-29 02:25:34,063 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:34,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:25:34,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:34,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:25:34,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2023-11-29 02:25:34,063 INFO L87 Difference]: Start difference. First operand 10151 states and 16250 transitions. Second operand has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 02:25:36,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:36,538 INFO L93 Difference]: Finished difference Result 10220 states and 16307 transitions. [2023-11-29 02:25:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:25:36,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 236 [2023-11-29 02:25:36,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:36,549 INFO L225 Difference]: With dead ends: 10220 [2023-11-29 02:25:36,549 INFO L226 Difference]: Without dead ends: 10219 [2023-11-29 02:25:36,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=44, Invalid=87, Unknown=1, NotChecked=0, Total=132 [2023-11-29 02:25:36,551 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 63 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:36,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 707 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:25:36,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10219 states. [2023-11-29 02:25:37,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10219 to 10175. [2023-11-29 02:25:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10175 states, 9405 states have (on average 1.5824561403508772) internal successors, (14883), 9466 states have internal predecessors, (14883), 697 states have call successors, (697), 14 states have call predecessors, (697), 14 states have return successors, (697), 694 states have call predecessors, (697), 697 states have call successors, (697) [2023-11-29 02:25:37,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10175 states to 10175 states and 16277 transitions. [2023-11-29 02:25:37,853 INFO L78 Accepts]: Start accepts. Automaton has 10175 states and 16277 transitions. Word has length 236 [2023-11-29 02:25:37,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:37,853 INFO L495 AbstractCegarLoop]: Abstraction has 10175 states and 16277 transitions. [2023-11-29 02:25:37,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 02:25:37,853 INFO L276 IsEmpty]: Start isEmpty. Operand 10175 states and 16277 transitions. [2023-11-29 02:25:37,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-11-29 02:25:37,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:37,854 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:37,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2023-11-29 02:25:38,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:38,055 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:25:38,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:38,055 INFO L85 PathProgramCache]: Analyzing trace with hash -450193110, now seen corresponding path program 1 times [2023-11-29 02:25:38,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:38,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515476893] [2023-11-29 02:25:38,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:38,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:38,066 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:38,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [166633743] [2023-11-29 02:25:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:38,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:38,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:38,067 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:38,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2023-11-29 02:25:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:38,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:25:38,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 45 proven. 100 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:25:38,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:38,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:38,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515476893] [2023-11-29 02:25:38,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:38,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166633743] [2023-11-29 02:25:38,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166633743] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:25:38,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:25:38,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:25:38,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692498052] [2023-11-29 02:25:38,813 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:38,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:25:38,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:38,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:25:38,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:25:38,814 INFO L87 Difference]: Start difference. First operand 10175 states and 16277 transitions. Second operand has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 8 states have internal predecessors, (163), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 02:25:42,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:42,004 INFO L93 Difference]: Finished difference Result 10231 states and 16289 transitions. [2023-11-29 02:25:42,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:25:42,005 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 8 states have internal predecessors, (163), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 237 [2023-11-29 02:25:42,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:42,019 INFO L225 Difference]: With dead ends: 10231 [2023-11-29 02:25:42,019 INFO L226 Difference]: Without dead ends: 10230 [2023-11-29 02:25:42,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:25:42,021 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 73 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:42,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 972 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 02:25:42,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10230 states. [2023-11-29 02:25:43,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10230 to 10181. [2023-11-29 02:25:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10181 states, 9411 states have (on average 1.5817660184890023) internal successors, (14886), 9472 states have internal predecessors, (14886), 697 states have call successors, (697), 14 states have call predecessors, (697), 14 states have return successors, (697), 694 states have call predecessors, (697), 697 states have call successors, (697) [2023-11-29 02:25:43,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10181 states to 10181 states and 16280 transitions. [2023-11-29 02:25:43,353 INFO L78 Accepts]: Start accepts. Automaton has 10181 states and 16280 transitions. Word has length 237 [2023-11-29 02:25:43,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:43,353 INFO L495 AbstractCegarLoop]: Abstraction has 10181 states and 16280 transitions. [2023-11-29 02:25:43,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 8 states have internal predecessors, (163), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 02:25:43,353 INFO L276 IsEmpty]: Start isEmpty. Operand 10181 states and 16280 transitions. [2023-11-29 02:25:43,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-29 02:25:43,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:43,354 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:43,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Forceful destruction successful, exit code 0 [2023-11-29 02:25:43,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:43,555 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:25:43,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:43,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1071084341, now seen corresponding path program 1 times [2023-11-29 02:25:43,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:43,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881239574] [2023-11-29 02:25:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:43,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:43,564 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:43,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935817989] [2023-11-29 02:25:43,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:43,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:43,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:43,565 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:43,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2023-11-29 02:25:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:43,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:25:43,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:44,157 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 45 proven. 101 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:25:44,157 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:44,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:44,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881239574] [2023-11-29 02:25:44,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:44,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935817989] [2023-11-29 02:25:44,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935817989] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:25:44,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:25:44,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:25:44,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921301180] [2023-11-29 02:25:44,288 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:44,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:25:44,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:44,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:25:44,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:25:44,289 INFO L87 Difference]: Start difference. First operand 10181 states and 16280 transitions. Second operand has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:25:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:46,341 INFO L93 Difference]: Finished difference Result 10196 states and 16288 transitions. [2023-11-29 02:25:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:25:46,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 238 [2023-11-29 02:25:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:46,354 INFO L225 Difference]: With dead ends: 10196 [2023-11-29 02:25:46,355 INFO L226 Difference]: Without dead ends: 10195 [2023-11-29 02:25:46,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:25:46,356 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 150 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:46,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 455 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:25:46,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10195 states. [2023-11-29 02:25:47,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10195 to 10182. [2023-11-29 02:25:47,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10182 states, 9412 states have (on average 1.5815979600509986) internal successors, (14886), 9473 states have internal predecessors, (14886), 697 states have call successors, (697), 14 states have call predecessors, (697), 14 states have return successors, (697), 694 states have call predecessors, (697), 697 states have call successors, (697) [2023-11-29 02:25:47,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10182 states to 10182 states and 16280 transitions. [2023-11-29 02:25:47,657 INFO L78 Accepts]: Start accepts. Automaton has 10182 states and 16280 transitions. Word has length 238 [2023-11-29 02:25:47,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:47,657 INFO L495 AbstractCegarLoop]: Abstraction has 10182 states and 16280 transitions. [2023-11-29 02:25:47,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:25:47,657 INFO L276 IsEmpty]: Start isEmpty. Operand 10182 states and 16280 transitions. [2023-11-29 02:25:47,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-11-29 02:25:47,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:47,658 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:47,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2023-11-29 02:25:47,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2023-11-29 02:25:47,858 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:25:47,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:47,859 INFO L85 PathProgramCache]: Analyzing trace with hash 420737849, now seen corresponding path program 2 times [2023-11-29 02:25:47,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:47,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598243114] [2023-11-29 02:25:47,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:47,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:47,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:47,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536260579] [2023-11-29 02:25:47,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:25:47,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:47,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:47,869 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:47,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2023-11-29 02:25:47,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:25:47,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:25:47,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:25:47,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:49,379 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:25:49,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:49,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:49,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598243114] [2023-11-29 02:25:49,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:49,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536260579] [2023-11-29 02:25:49,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536260579] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:25:49,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:25:49,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:25:49,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688892814] [2023-11-29 02:25:49,741 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:49,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:25:49,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:49,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:25:49,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:25:49,742 INFO L87 Difference]: Start difference. First operand 10182 states and 16280 transitions. Second operand has 12 states, 11 states have (on average 15.0) internal successors, (165), 12 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:25:53,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:53,024 INFO L93 Difference]: Finished difference Result 10228 states and 16322 transitions. [2023-11-29 02:25:53,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:25:53,024 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.0) internal successors, (165), 12 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 239 [2023-11-29 02:25:53,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:53,038 INFO L225 Difference]: With dead ends: 10228 [2023-11-29 02:25:53,038 INFO L226 Difference]: Without dead ends: 10223 [2023-11-29 02:25:53,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:25:53,039 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 320 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:53,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 751 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 02:25:53,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10223 states. [2023-11-29 02:25:54,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10223 to 10182. [2023-11-29 02:25:54,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10182 states, 9412 states have (on average 1.5813854653633659) internal successors, (14884), 9473 states have internal predecessors, (14884), 697 states have call successors, (697), 14 states have call predecessors, (697), 14 states have return successors, (697), 694 states have call predecessors, (697), 697 states have call successors, (697) [2023-11-29 02:25:54,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10182 states to 10182 states and 16278 transitions. [2023-11-29 02:25:54,399 INFO L78 Accepts]: Start accepts. Automaton has 10182 states and 16278 transitions. Word has length 239 [2023-11-29 02:25:54,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:54,399 INFO L495 AbstractCegarLoop]: Abstraction has 10182 states and 16278 transitions. [2023-11-29 02:25:54,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.0) internal successors, (165), 12 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:25:54,400 INFO L276 IsEmpty]: Start isEmpty. Operand 10182 states and 16278 transitions. [2023-11-29 02:25:54,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-11-29 02:25:54,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:54,400 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:54,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Ended with exit code 0 [2023-11-29 02:25:54,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2023-11-29 02:25:54,601 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:25:54,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:54,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1156123980, now seen corresponding path program 1 times [2023-11-29 02:25:54,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:54,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522249796] [2023-11-29 02:25:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:54,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:54,610 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:54,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1567660601] [2023-11-29 02:25:54,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:54,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:54,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:54,612 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:54,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2023-11-29 02:25:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:54,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:25:54,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:55,162 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 45 proven. 102 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:25:55,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:55,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:55,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522249796] [2023-11-29 02:25:55,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:55,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567660601] [2023-11-29 02:25:55,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567660601] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:25:55,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:25:55,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:25:55,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469642527] [2023-11-29 02:25:55,273 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:55,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:25:55,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:55,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:25:55,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:25:55,274 INFO L87 Difference]: Start difference. First operand 10182 states and 16278 transitions. Second operand has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:25:57,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:57,422 INFO L93 Difference]: Finished difference Result 10276 states and 16348 transitions. [2023-11-29 02:25:57,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:25:57,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 239 [2023-11-29 02:25:57,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:57,436 INFO L225 Difference]: With dead ends: 10276 [2023-11-29 02:25:57,436 INFO L226 Difference]: Without dead ends: 10275 [2023-11-29 02:25:57,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:25:57,463 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 108 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:57,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 832 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:25:57,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10275 states. [2023-11-29 02:25:58,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10275 to 10193. [2023-11-29 02:25:58,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10193 states, 9423 states have (on average 1.580919027910432) internal successors, (14897), 9484 states have internal predecessors, (14897), 697 states have call successors, (697), 14 states have call predecessors, (697), 14 states have return successors, (697), 694 states have call predecessors, (697), 697 states have call successors, (697) [2023-11-29 02:25:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10193 states to 10193 states and 16291 transitions. [2023-11-29 02:25:58,739 INFO L78 Accepts]: Start accepts. Automaton has 10193 states and 16291 transitions. Word has length 239 [2023-11-29 02:25:58,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:58,740 INFO L495 AbstractCegarLoop]: Abstraction has 10193 states and 16291 transitions. [2023-11-29 02:25:58,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:25:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 10193 states and 16291 transitions. [2023-11-29 02:25:58,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-29 02:25:58,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:58,741 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:58,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Ended with exit code 0 [2023-11-29 02:25:58,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2023-11-29 02:25:58,941 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:25:58,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:58,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1480105197, now seen corresponding path program 1 times [2023-11-29 02:25:58,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:58,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377362923] [2023-11-29 02:25:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:58,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:58,953 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:58,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405407046] [2023-11-29 02:25:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:58,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:58,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:58,954 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:58,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2023-11-29 02:25:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:59,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:25:59,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-29 02:25:59,183 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:26:10,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:26:10,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377362923] [2023-11-29 02:26:10,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:26:10,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405407046] [2023-11-29 02:26:10,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405407046] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:26:10,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:26:10,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 02:26:10,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404376608] [2023-11-29 02:26:10,000 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:26:10,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:26:10,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:26:10,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:26:10,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2023-11-29 02:26:10,001 INFO L87 Difference]: Start difference. First operand 10193 states and 16291 transitions. Second operand has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 02:26:12,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:26:12,061 INFO L93 Difference]: Finished difference Result 10258 states and 16339 transitions. [2023-11-29 02:26:12,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:26:12,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 240 [2023-11-29 02:26:12,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:26:12,074 INFO L225 Difference]: With dead ends: 10258 [2023-11-29 02:26:12,074 INFO L226 Difference]: Without dead ends: 10257 [2023-11-29 02:26:12,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=25, Invalid=63, Unknown=2, NotChecked=0, Total=90 [2023-11-29 02:26:12,076 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 60 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:26:12,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 855 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:26:12,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10257 states. [2023-11-29 02:26:13,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10257 to 10211. [2023-11-29 02:26:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10211 states, 9441 states have (on average 1.5798114606503548) internal successors, (14915), 9502 states have internal predecessors, (14915), 697 states have call successors, (697), 14 states have call predecessors, (697), 14 states have return successors, (697), 694 states have call predecessors, (697), 697 states have call successors, (697) [2023-11-29 02:26:13,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10211 states to 10211 states and 16309 transitions. [2023-11-29 02:26:13,356 INFO L78 Accepts]: Start accepts. Automaton has 10211 states and 16309 transitions. Word has length 240 [2023-11-29 02:26:13,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:26:13,356 INFO L495 AbstractCegarLoop]: Abstraction has 10211 states and 16309 transitions. [2023-11-29 02:26:13,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 02:26:13,356 INFO L276 IsEmpty]: Start isEmpty. Operand 10211 states and 16309 transitions. [2023-11-29 02:26:13,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-11-29 02:26:13,357 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:26:13,357 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:26:13,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2023-11-29 02:26:13,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2023-11-29 02:26:13,558 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:26:13,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:26:13,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1361378962, now seen corresponding path program 1 times [2023-11-29 02:26:13,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:26:13,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609857625] [2023-11-29 02:26:13,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:26:13,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:26:13,567 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:26:13,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939119961] [2023-11-29 02:26:13,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:26:13,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:26:13,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:26:13,568 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:26:13,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2023-11-29 02:26:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:26:13,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:26:13,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:26:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 45 proven. 104 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:26:14,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:26:18,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:26:18,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609857625] [2023-11-29 02:26:18,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:26:18,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939119961] [2023-11-29 02:26:18,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939119961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:26:18,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:26:18,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:26:18,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162702430] [2023-11-29 02:26:18,439 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:26:18,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:26:18,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:26:18,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:26:18,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:26:18,440 INFO L87 Difference]: Start difference. First operand 10211 states and 16309 transitions. Second operand has 9 states, 8 states have (on average 20.875) internal successors, (167), 9 states have internal predecessors, (167), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:26:20,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:26:20,759 INFO L93 Difference]: Finished difference Result 10220 states and 16311 transitions. [2023-11-29 02:26:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:26:20,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 20.875) internal successors, (167), 9 states have internal predecessors, (167), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 241 [2023-11-29 02:26:20,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:26:20,769 INFO L225 Difference]: With dead ends: 10220 [2023-11-29 02:26:20,770 INFO L226 Difference]: Without dead ends: 10219 [2023-11-29 02:26:20,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:26:20,771 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 129 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:26:20,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 666 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:26:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10219 states. [2023-11-29 02:26:22,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10219 to 10212. [2023-11-29 02:26:22,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10212 states, 9442 states have (on average 1.5796441431900021) internal successors, (14915), 9503 states have internal predecessors, (14915), 697 states have call successors, (697), 14 states have call predecessors, (697), 14 states have return successors, (697), 694 states have call predecessors, (697), 697 states have call successors, (697) [2023-11-29 02:26:22,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10212 states to 10212 states and 16309 transitions. [2023-11-29 02:26:22,036 INFO L78 Accepts]: Start accepts. Automaton has 10212 states and 16309 transitions. Word has length 241 [2023-11-29 02:26:22,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:26:22,036 INFO L495 AbstractCegarLoop]: Abstraction has 10212 states and 16309 transitions. [2023-11-29 02:26:22,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 20.875) internal successors, (167), 9 states have internal predecessors, (167), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:26:22,036 INFO L276 IsEmpty]: Start isEmpty. Operand 10212 states and 16309 transitions. [2023-11-29 02:26:22,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-29 02:26:22,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:26:22,037 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:26:22,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2023-11-29 02:26:22,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:26:22,238 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:26:22,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:26:22,238 INFO L85 PathProgramCache]: Analyzing trace with hash 535568902, now seen corresponding path program 1 times [2023-11-29 02:26:22,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:26:22,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501835598] [2023-11-29 02:26:22,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:26:22,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:26:22,249 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:26:22,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383684730] [2023-11-29 02:26:22,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:26:22,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:26:22,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:26:22,251 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:26:22,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2023-11-29 02:26:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:26:22,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:26:22,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:26:22,552 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 6 proven. 341 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 02:26:22,552 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:26:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 6 proven. 149 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:26:22,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:26:22,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501835598] [2023-11-29 02:26:22,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:26:22,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383684730] [2023-11-29 02:26:22,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383684730] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:26:22,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:26:22,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 02:26:22,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040130408] [2023-11-29 02:26:22,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:26:22,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 02:26:22,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:26:22,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 02:26:22,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:26:22,818 INFO L87 Difference]: Start difference. First operand 10212 states and 16309 transitions. Second operand has 24 states, 23 states have (on average 14.565217391304348) internal successors, (335), 24 states have internal predecessors, (335), 7 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-29 02:26:25,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:26:25,026 INFO L93 Difference]: Finished difference Result 14917 states and 23264 transitions. [2023-11-29 02:26:25,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 02:26:25,027 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 14.565217391304348) internal successors, (335), 24 states have internal predecessors, (335), 7 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 244 [2023-11-29 02:26:25,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:26:25,044 INFO L225 Difference]: With dead ends: 14917 [2023-11-29 02:26:25,044 INFO L226 Difference]: Without dead ends: 14915 [2023-11-29 02:26:25,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=506, Invalid=1656, Unknown=0, NotChecked=0, Total=2162 [2023-11-29 02:26:25,047 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1298 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:26:25,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 2448 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:26:25,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14915 states. [2023-11-29 02:26:26,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14915 to 13699. [2023-11-29 02:26:26,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13699 states, 12674 states have (on average 1.5585450528641314) internal successors, (19753), 12737 states have internal predecessors, (19753), 947 states have call successors, (947), 19 states have call predecessors, (947), 19 states have return successors, (947), 942 states have call predecessors, (947), 947 states have call successors, (947) [2023-11-29 02:26:26,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13699 states to 13699 states and 21647 transitions. [2023-11-29 02:26:26,820 INFO L78 Accepts]: Start accepts. Automaton has 13699 states and 21647 transitions. Word has length 244 [2023-11-29 02:26:26,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:26:26,820 INFO L495 AbstractCegarLoop]: Abstraction has 13699 states and 21647 transitions. [2023-11-29 02:26:26,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 14.565217391304348) internal successors, (335), 24 states have internal predecessors, (335), 7 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-29 02:26:26,820 INFO L276 IsEmpty]: Start isEmpty. Operand 13699 states and 21647 transitions. [2023-11-29 02:26:26,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-29 02:26:26,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:26:26,821 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:26:26,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Ended with exit code 0 [2023-11-29 02:26:27,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:26:27,022 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 02:26:27,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:26:27,022 INFO L85 PathProgramCache]: Analyzing trace with hash -714358739, now seen corresponding path program 1 times [2023-11-29 02:26:27,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:26:27,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638300202] [2023-11-29 02:26:27,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:26:27,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:26:27,033 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:26:27,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387317907] [2023-11-29 02:26:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:26:27,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:26:27,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:26:27,035 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:26:27,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93be747f-3d56-43d2-8867-5d348a48a577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2023-11-29 02:26:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:26:27,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:26:27,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:26:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 349 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 02:26:27,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:26:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 157 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 02:26:27,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:26:27,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638300202] [2023-11-29 02:26:27,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:26:27,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387317907] [2023-11-29 02:26:27,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387317907] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:26:27,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:26:27,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2023-11-29 02:26:27,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994888604] [2023-11-29 02:26:27,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:26:27,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 02:26:27,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:26:27,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 02:26:27,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:26:27,644 INFO L87 Difference]: Start difference. First operand 13699 states and 21647 transitions. Second operand has 24 states, 24 states have (on average 14.541666666666666) internal successors, (349), 24 states have internal predecessors, (349), 7 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32)