./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_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_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/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_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/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_9c7e6c76-0835-4cd4-b891-687286709b56/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 9f971bd1a6fba471cdece6d295ca31488341eb806ea8364f7549d05755c7a031 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:53:50,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:53:50,260 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 02:53:50,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:53:50,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:53:50,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:53:50,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:53:50,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:53:50,293 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:53:50,293 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:53:50,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:53:50,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:53:50,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:53:50,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:53:50,296 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:53:50,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:53:50,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:53:50,297 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:53:50,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:53:50,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:53:50,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:53:50,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:53:50,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:53:50,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:53:50,301 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:53:50,302 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:53:50,302 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:53:50,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:53:50,303 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:53:50,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:53:50,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:53:50,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:53:50,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:53:50,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:53:50,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:53:50,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:53:50,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:53:50,306 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:53:50,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:53:50,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:53:50,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:53:50,307 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:53:50,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:53:50,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:53:50,307 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_9c7e6c76-0835-4cd4-b891-687286709b56/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f971bd1a6fba471cdece6d295ca31488341eb806ea8364f7549d05755c7a031 [2023-11-29 02:53:50,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:53:50,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:53:50,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:53:50,569 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:53:50,569 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:53:50,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound10.c [2023-11-29 02:53:53,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:53:53,523 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:53:53,524 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound10.c [2023-11-29 02:53:53,530 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/data/441421db0/862ec34d6e7a4a77a33069ae47e5aeec/FLAGbaeea0cdc [2023-11-29 02:53:53,542 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/data/441421db0/862ec34d6e7a4a77a33069ae47e5aeec [2023-11-29 02:53:53,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:53:53,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:53:53,546 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:53:53,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:53:53,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:53:53,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b124196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53, skipping insertion in model container [2023-11-29 02:53:53,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,574 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:53:53,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:53:53,755 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:53:53,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:53:53,790 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:53:53,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53 WrapperNode [2023-11-29 02:53:53,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:53:53,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:53:53,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:53:53,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:53:53,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,830 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2023-11-29 02:53:53,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:53:53,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:53:53,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:53:53,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:53:53,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,844 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,856 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-29 02:53:53,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:53:53,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:53:53,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:53:53,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:53:53,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (1/1) ... [2023-11-29 02:53:53,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:53:53,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:53,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:53:53,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:53:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:53:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:53:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 02:53:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:53:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:53:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 02:53:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 02:53:54,006 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:53:54,008 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:53:54,247 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:53:54,274 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:53:54,274 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 02:53:54,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:53:54 BoogieIcfgContainer [2023-11-29 02:53:54,274 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:53:54,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:53:54,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:53:54,279 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:53:54,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:53:53" (1/3) ... [2023-11-29 02:53:54,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cbf3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:53:54, skipping insertion in model container [2023-11-29 02:53:54,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:53" (2/3) ... [2023-11-29 02:53:54,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cbf3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:53:54, skipping insertion in model container [2023-11-29 02:53:54,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:53:54" (3/3) ... [2023-11-29 02:53:54,282 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound10.c [2023-11-29 02:53:54,297 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:53:54,297 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-29 02:53:54,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:53:54,348 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;@363532f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:53:54,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-29 02:53:54,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:53:54,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 02:53:54,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:54,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 02:53:54,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:54,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:54,365 INFO L85 PathProgramCache]: Analyzing trace with hash 163595, now seen corresponding path program 1 times [2023-11-29 02:53:54,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:54,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955953276] [2023-11-29 02:53:54,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:54,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:54,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:54,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955953276] [2023-11-29 02:53:54,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955953276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:54,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:54,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:53:54,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6065288] [2023-11-29 02:53:54,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:54,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:53:54,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:54,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:53:54,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:53:54,610 INFO L87 Difference]: Start difference. First operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:54,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:54,687 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2023-11-29 02:53:54,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:53:54,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 02:53:54,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:54,697 INFO L225 Difference]: With dead ends: 157 [2023-11-29 02:53:54,697 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 02:53:54,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 02:53:54,702 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 4 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:54,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 239 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:53:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 02:53:54,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-29 02:53:54,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 43 states have (on average 1.744186046511628) internal successors, (75), 70 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 02:53:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2023-11-29 02:53:54,743 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 3 [2023-11-29 02:53:54,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:54,744 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2023-11-29 02:53:54,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:54,744 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2023-11-29 02:53:54,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 02:53:54,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:54,746 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:54,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:53:54,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:54,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:54,748 INFO L85 PathProgramCache]: Analyzing trace with hash -576103490, now seen corresponding path program 1 times [2023-11-29 02:53:54,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:54,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115580912] [2023-11-29 02:53:54,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:54,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:54,767 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:54,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8030516] [2023-11-29 02:53:54,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:54,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:54,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:54,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:54,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:53:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:54,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:53:54,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:54,910 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 02:53:54,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:54,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:54,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115580912] [2023-11-29 02:53:54,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:54,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8030516] [2023-11-29 02:53:54,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8030516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:54,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:54,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:53:54,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444027889] [2023-11-29 02:53:54,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:54,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:53:54,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:54,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:53:54,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:53:54,915 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 02:53:54,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:54,998 INFO L93 Difference]: Finished difference Result 171 states and 190 transitions. [2023-11-29 02:53:54,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:53:54,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-11-29 02:53:54,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:55,001 INFO L225 Difference]: With dead ends: 171 [2023-11-29 02:53:55,001 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 02:53:55,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 02:53:55,003 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 36 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:55,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 121 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:53:55,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 02:53:55,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2023-11-29 02:53:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.721311475409836) internal successors, (105), 88 states have internal predecessors, (105), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:53:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2023-11-29 02:53:55,019 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 16 [2023-11-29 02:53:55,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:55,020 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2023-11-29 02:53:55,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 02:53:55,021 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2023-11-29 02:53:55,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 02:53:55,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:55,021 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:55,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:53:55,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:55,222 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:55,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:55,223 INFO L85 PathProgramCache]: Analyzing trace with hash -679338954, now seen corresponding path program 1 times [2023-11-29 02:53:55,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:55,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933938337] [2023-11-29 02:53:55,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:55,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:55,236 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:55,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013934319] [2023-11-29 02:53:55,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:55,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:55,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:55,238 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:55,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:53:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:55,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:53:55,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:55,338 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 02:53:55,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:55,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:55,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933938337] [2023-11-29 02:53:55,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:55,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013934319] [2023-11-29 02:53:55,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013934319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:55,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:55,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:53:55,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407279492] [2023-11-29 02:53:55,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:55,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:53:55,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:55,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:53:55,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:53:55,342 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 02:53:55,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:55,408 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2023-11-29 02:53:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:53:55,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-29 02:53:55,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:55,411 INFO L225 Difference]: With dead ends: 118 [2023-11-29 02:53:55,411 INFO L226 Difference]: Without dead ends: 116 [2023-11-29 02:53:55,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 02:53:55,413 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 33 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:55,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 120 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:53:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-29 02:53:55,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 100. [2023-11-29 02:53:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.6885245901639345) internal successors, (103), 88 states have internal predecessors, (103), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:53:55,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2023-11-29 02:53:55,426 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 17 [2023-11-29 02:53:55,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:55,426 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2023-11-29 02:53:55,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 02:53:55,427 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2023-11-29 02:53:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 02:53:55,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:55,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:55,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:53:55,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:55,633 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:55,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:55,633 INFO L85 PathProgramCache]: Analyzing trace with hash 117225432, now seen corresponding path program 1 times [2023-11-29 02:53:55,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:55,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336735741] [2023-11-29 02:53:55,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:55,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:55,648 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:55,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7982545] [2023-11-29 02:53:55,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:55,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:55,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:55,650 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:55,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:53:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:55,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:53:55,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:55,730 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:53:55,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:55,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:55,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336735741] [2023-11-29 02:53:55,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:55,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7982545] [2023-11-29 02:53:55,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7982545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:55,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:55,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:53:55,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984945471] [2023-11-29 02:53:55,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:55,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:53:55,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:55,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:53:55,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:53:55,754 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:55,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:55,800 INFO L93 Difference]: Finished difference Result 132 states and 159 transitions. [2023-11-29 02:53:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:53:55,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-11-29 02:53:55,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:55,802 INFO L225 Difference]: With dead ends: 132 [2023-11-29 02:53:55,803 INFO L226 Difference]: Without dead ends: 130 [2023-11-29 02:53:55,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 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 02:53:55,804 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 42 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:55,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 103 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:53:55,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-29 02:53:55,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 113. [2023-11-29 02:53:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 73 states have (on average 1.6849315068493151) internal successors, (123), 99 states have internal predecessors, (123), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 02:53:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2023-11-29 02:53:55,817 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 24 [2023-11-29 02:53:55,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:55,817 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2023-11-29 02:53:55,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:55,818 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2023-11-29 02:53:55,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 02:53:55,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:55,818 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:55,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:53:56,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:56,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:56,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:56,020 INFO L85 PathProgramCache]: Analyzing trace with hash -660980348, now seen corresponding path program 1 times [2023-11-29 02:53:56,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:56,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138027445] [2023-11-29 02:53:56,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:56,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:56,032 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:56,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1497662921] [2023-11-29 02:53:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:56,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:56,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:56,034 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:56,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:53:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:56,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:53:56,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:56,135 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:53:56,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:56,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:56,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138027445] [2023-11-29 02:53:56,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:56,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497662921] [2023-11-29 02:53:56,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497662921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:56,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:56,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:53:56,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380467251] [2023-11-29 02:53:56,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:56,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:53:56,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:53:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:53:56,138 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:56,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:56,205 INFO L93 Difference]: Finished difference Result 113 states and 147 transitions. [2023-11-29 02:53:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:53:56,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-29 02:53:56,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:56,207 INFO L225 Difference]: With dead ends: 113 [2023-11-29 02:53:56,208 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 02:53:56,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:53:56,209 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 125 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:56,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 195 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:53:56,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 02:53:56,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 02:53:56,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.63013698630137) internal successors, (119), 97 states have internal predecessors, (119), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 02:53:56,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 143 transitions. [2023-11-29 02:53:56,222 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 143 transitions. Word has length 25 [2023-11-29 02:53:56,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:56,222 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 143 transitions. [2023-11-29 02:53:56,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 143 transitions. [2023-11-29 02:53:56,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 02:53:56,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:56,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:56,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:53:56,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:56,429 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:56,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:56,430 INFO L85 PathProgramCache]: Analyzing trace with hash -660978842, now seen corresponding path program 1 times [2023-11-29 02:53:56,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:56,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430595394] [2023-11-29 02:53:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:56,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:56,439 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:56,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838886975] [2023-11-29 02:53:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:56,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:56,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:56,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:56,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:53:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:56,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:53:56,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:53:56,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:56,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:56,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430595394] [2023-11-29 02:53:56,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:56,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838886975] [2023-11-29 02:53:56,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838886975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:56,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:56,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:53:56,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732694526] [2023-11-29 02:53:56,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:56,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:53:56,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:56,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:53:56,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:53:56,514 INFO L87 Difference]: Start difference. First operand 111 states and 143 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:56,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:56,559 INFO L93 Difference]: Finished difference Result 125 states and 150 transitions. [2023-11-29 02:53:56,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:53:56,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-29 02:53:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:56,561 INFO L225 Difference]: With dead ends: 125 [2023-11-29 02:53:56,561 INFO L226 Difference]: Without dead ends: 124 [2023-11-29 02:53:56,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 02:53:56,562 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 25 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:56,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 121 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:53:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-29 02:53:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 111. [2023-11-29 02:53:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.6164383561643836) internal successors, (118), 97 states have internal predecessors, (118), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 02:53:56,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2023-11-29 02:53:56,574 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 25 [2023-11-29 02:53:56,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:56,575 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2023-11-29 02:53:56,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:56,575 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2023-11-29 02:53:56,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 02:53:56,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:56,576 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:56,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:53:56,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 02:53:56,780 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:56,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:56,781 INFO L85 PathProgramCache]: Analyzing trace with hash 984445769, now seen corresponding path program 1 times [2023-11-29 02:53:56,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:56,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749034920] [2023-11-29 02:53:56,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:56,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:56,792 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:56,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [657294008] [2023-11-29 02:53:56,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:56,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:56,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:56,794 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:56,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:53:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:56,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:53:56,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:53:56,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:56,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:56,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749034920] [2023-11-29 02:53:56,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:56,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657294008] [2023-11-29 02:53:56,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657294008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:56,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:56,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:53:56,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039300129] [2023-11-29 02:53:56,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:56,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:53:56,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:56,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:53:56,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:53:56,895 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:56,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:56,961 INFO L93 Difference]: Finished difference Result 128 states and 156 transitions. [2023-11-29 02:53:56,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:53:56,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2023-11-29 02:53:56,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:56,970 INFO L225 Difference]: With dead ends: 128 [2023-11-29 02:53:56,971 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 02:53:56,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 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 02:53:56,972 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 16 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:56,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 288 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:53:56,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 02:53:56,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2023-11-29 02:53:56,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 76 states have (on average 1.5657894736842106) internal successors, (119), 100 states have internal predecessors, (119), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 02:53:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 143 transitions. [2023-11-29 02:53:56,987 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 143 transitions. Word has length 26 [2023-11-29 02:53:56,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:56,987 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 143 transitions. [2023-11-29 02:53:56,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:56,988 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 143 transitions. [2023-11-29 02:53:56,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 02:53:56,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:56,989 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:56,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:53:57,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 02:53:57,190 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:57,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:57,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1159581515, now seen corresponding path program 1 times [2023-11-29 02:53:57,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:57,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91299667] [2023-11-29 02:53:57,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:57,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:57,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:57,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062789366] [2023-11-29 02:53:57,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:57,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:57,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:57,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:57,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:53:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:57,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:53:57,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:57,323 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:53:57,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:57,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:57,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91299667] [2023-11-29 02:53:57,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:57,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062789366] [2023-11-29 02:53:57,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062789366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:57,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:57,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:53:57,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823965228] [2023-11-29 02:53:57,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:57,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:53:57,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:57,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:53:57,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:53:57,326 INFO L87 Difference]: Start difference. First operand 115 states and 143 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:57,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:57,393 INFO L93 Difference]: Finished difference Result 160 states and 192 transitions. [2023-11-29 02:53:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:53:57,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-11-29 02:53:57,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:57,395 INFO L225 Difference]: With dead ends: 160 [2023-11-29 02:53:57,395 INFO L226 Difference]: Without dead ends: 159 [2023-11-29 02:53:57,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 02:53:57,396 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 51 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:57,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 83 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:53:57,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-29 02:53:57,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 133. [2023-11-29 02:53:57,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.5869565217391304) internal successors, (146), 116 states have internal predecessors, (146), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 02:53:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 174 transitions. [2023-11-29 02:53:57,411 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 174 transitions. Word has length 28 [2023-11-29 02:53:57,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:57,412 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 174 transitions. [2023-11-29 02:53:57,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:57,412 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 174 transitions. [2023-11-29 02:53:57,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 02:53:57,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:57,414 INFO L195 NwaCegarLoop]: trace histogram [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 02:53:57,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 02:53:57,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 02:53:57,616 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:57,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:57,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1587288683, now seen corresponding path program 1 times [2023-11-29 02:53:57,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:57,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249901844] [2023-11-29 02:53:57,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:57,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:57,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:57,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651782260] [2023-11-29 02:53:57,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:57,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:57,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:57,630 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:57,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:53:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:57,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:53:57,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:57,755 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:53:57,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:57,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:57,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249901844] [2023-11-29 02:53:57,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:57,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651782260] [2023-11-29 02:53:57,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651782260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:57,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:57,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:53:57,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585340932] [2023-11-29 02:53:57,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:57,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:53:57,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:57,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:53:57,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:53:57,758 INFO L87 Difference]: Start difference. First operand 133 states and 174 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:57,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:57,822 INFO L93 Difference]: Finished difference Result 159 states and 189 transitions. [2023-11-29 02:53:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:53:57,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-11-29 02:53:57,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:57,824 INFO L225 Difference]: With dead ends: 159 [2023-11-29 02:53:57,824 INFO L226 Difference]: Without dead ends: 158 [2023-11-29 02:53:57,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 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 02:53:57,826 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 49 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:57,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 84 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:53:57,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-29 02:53:57,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 133. [2023-11-29 02:53:57,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.5543478260869565) internal successors, (143), 116 states have internal predecessors, (143), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 02:53:57,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 171 transitions. [2023-11-29 02:53:57,837 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 171 transitions. Word has length 29 [2023-11-29 02:53:57,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:57,838 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 171 transitions. [2023-11-29 02:53:57,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:57,838 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 171 transitions. [2023-11-29 02:53:57,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 02:53:57,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:57,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:57,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 02:53:58,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 02:53:58,040 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:58,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:58,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1961309005, now seen corresponding path program 1 times [2023-11-29 02:53:58,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:58,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589447698] [2023-11-29 02:53:58,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:58,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:58,047 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:58,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248825237] [2023-11-29 02:53:58,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:58,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:58,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:58,049 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:58,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:53:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:58,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:53:58,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:53:58,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:58,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:58,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589447698] [2023-11-29 02:53:58,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:58,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248825237] [2023-11-29 02:53:58,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248825237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:58,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:58,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:53:58,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913654673] [2023-11-29 02:53:58,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:58,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:53:58,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:58,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:53:58,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:53:58,169 INFO L87 Difference]: Start difference. First operand 133 states and 171 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:58,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:58,244 INFO L93 Difference]: Finished difference Result 154 states and 182 transitions. [2023-11-29 02:53:58,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:53:58,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-29 02:53:58,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:58,246 INFO L225 Difference]: With dead ends: 154 [2023-11-29 02:53:58,246 INFO L226 Difference]: Without dead ends: 150 [2023-11-29 02:53:58,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 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 02:53:58,247 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 40 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:58,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 90 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:53:58,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-29 02:53:58,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 136. [2023-11-29 02:53:58,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 119 states have internal predecessors, (143), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 02:53:58,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 171 transitions. [2023-11-29 02:53:58,259 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 171 transitions. Word has length 30 [2023-11-29 02:53:58,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:58,260 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 171 transitions. [2023-11-29 02:53:58,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:58,260 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 171 transitions. [2023-11-29 02:53:58,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 02:53:58,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:58,261 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:58,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 02:53:58,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:58,465 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:58,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:58,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2114608351, now seen corresponding path program 1 times [2023-11-29 02:53:58,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:58,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794907241] [2023-11-29 02:53:58,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:58,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:58,475 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:58,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803211844] [2023-11-29 02:53:58,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:58,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:58,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:58,477 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:58,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:53:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:58,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:53:58,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:53:58,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:53:58,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:58,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794907241] [2023-11-29 02:53:58,668 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:58,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803211844] [2023-11-29 02:53:58,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803211844] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:53:58,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:53:58,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 02:53:58,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021740652] [2023-11-29 02:53:58,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:58,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:53:58,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:58,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:53:58,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:53:58,671 INFO L87 Difference]: Start difference. First operand 136 states and 171 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:53:58,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:58,807 INFO L93 Difference]: Finished difference Result 278 states and 347 transitions. [2023-11-29 02:53:58,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:53:58,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2023-11-29 02:53:58,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:58,810 INFO L225 Difference]: With dead ends: 278 [2023-11-29 02:53:58,810 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 02:53:58,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:53:58,812 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 61 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:58,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 410 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:53:58,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 02:53:58,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 175. [2023-11-29 02:53:58,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 126 states have (on average 1.4841269841269842) internal successors, (187), 150 states have internal predecessors, (187), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:53:58,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2023-11-29 02:53:58,824 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 30 [2023-11-29 02:53:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:58,824 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2023-11-29 02:53:58,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:53:58,825 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2023-11-29 02:53:58,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 02:53:58,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:58,825 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 02:53:58,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 02:53:59,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:59,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:59,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:59,027 INFO L85 PathProgramCache]: Analyzing trace with hash 671037101, now seen corresponding path program 1 times [2023-11-29 02:53:59,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:59,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192983282] [2023-11-29 02:53:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:59,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:59,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:59,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227125438] [2023-11-29 02:53:59,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:59,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:59,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:59,039 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:59,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:53:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:59,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:53:59,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:59,198 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:53:59,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:59,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:59,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192983282] [2023-11-29 02:53:59,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:59,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227125438] [2023-11-29 02:53:59,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227125438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:59,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:59,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:53:59,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484966683] [2023-11-29 02:53:59,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:59,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:53:59,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:59,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:53:59,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:53:59,200 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:59,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:59,321 INFO L93 Difference]: Finished difference Result 181 states and 231 transitions. [2023-11-29 02:53:59,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:53:59,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-11-29 02:53:59,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:59,323 INFO L225 Difference]: With dead ends: 181 [2023-11-29 02:53:59,324 INFO L226 Difference]: Without dead ends: 180 [2023-11-29 02:53:59,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 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 02:53:59,325 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 34 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:59,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 149 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:53:59,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-29 02:53:59,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 175. [2023-11-29 02:53:59,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 126 states have (on average 1.4761904761904763) internal successors, (186), 150 states have internal predecessors, (186), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:53:59,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 226 transitions. [2023-11-29 02:53:59,341 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 226 transitions. Word has length 31 [2023-11-29 02:53:59,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:59,341 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 226 transitions. [2023-11-29 02:53:59,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:53:59,342 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 226 transitions. [2023-11-29 02:53:59,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 02:53:59,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:59,343 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:59,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 02:53:59,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:59,549 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:53:59,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:59,549 INFO L85 PathProgramCache]: Analyzing trace with hash -177943393, now seen corresponding path program 1 times [2023-11-29 02:53:59,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:59,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558677298] [2023-11-29 02:53:59,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:59,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:59,559 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:59,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908635751] [2023-11-29 02:53:59,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:59,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:59,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:59,561 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:59,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 02:53:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:59,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:53:59,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:59,728 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 02:53:59,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:53:59,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:59,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558677298] [2023-11-29 02:53:59,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:59,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908635751] [2023-11-29 02:53:59,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908635751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:59,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:59,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:53:59,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130320002] [2023-11-29 02:53:59,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:59,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:53:59,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:59,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:53:59,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:53:59,731 INFO L87 Difference]: Start difference. First operand 175 states and 226 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 02:53:59,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:59,803 INFO L93 Difference]: Finished difference Result 187 states and 234 transitions. [2023-11-29 02:53:59,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:53:59,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 42 [2023-11-29 02:53:59,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:59,805 INFO L225 Difference]: With dead ends: 187 [2023-11-29 02:53:59,805 INFO L226 Difference]: Without dead ends: 178 [2023-11-29 02:53:59,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 02:53:59,806 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 90 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:59,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 113 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:53:59,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-29 02:53:59,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 171. [2023-11-29 02:53:59,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 126 states have (on average 1.380952380952381) internal successors, (174), 146 states have internal predecessors, (174), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:53:59,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 214 transitions. [2023-11-29 02:53:59,819 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 214 transitions. Word has length 42 [2023-11-29 02:53:59,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:59,819 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 214 transitions. [2023-11-29 02:53:59,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 02:53:59,820 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 214 transitions. [2023-11-29 02:53:59,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 02:53:59,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:59,821 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:59,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 02:54:00,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:00,022 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:00,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:00,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1221277835, now seen corresponding path program 1 times [2023-11-29 02:54:00,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:00,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718520616] [2023-11-29 02:54:00,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:00,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:00,030 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [861005880] [2023-11-29 02:54:00,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:00,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:00,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:00,032 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:00,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 02:54:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:00,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:54:00,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:00,167 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 02:54:00,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:00,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:00,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718520616] [2023-11-29 02:54:00,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:00,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861005880] [2023-11-29 02:54:00,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861005880] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:00,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:54:00,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 02:54:00,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963714979] [2023-11-29 02:54:00,299 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:00,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:54:00,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:00,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:54:00,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:00,300 INFO L87 Difference]: Start difference. First operand 171 states and 214 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 02:54:00,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:00,409 INFO L93 Difference]: Finished difference Result 263 states and 322 transitions. [2023-11-29 02:54:00,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:54:00,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 43 [2023-11-29 02:54:00,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:00,412 INFO L225 Difference]: With dead ends: 263 [2023-11-29 02:54:00,412 INFO L226 Difference]: Without dead ends: 259 [2023-11-29 02:54:00,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:00,413 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:00,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 125 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:00,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-29 02:54:00,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 225. [2023-11-29 02:54:00,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 174 states have (on average 1.4022988505747127) internal successors, (244), 194 states have internal predecessors, (244), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 02:54:00,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 296 transitions. [2023-11-29 02:54:00,432 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 296 transitions. Word has length 43 [2023-11-29 02:54:00,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:00,433 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 296 transitions. [2023-11-29 02:54:00,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 02:54:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 296 transitions. [2023-11-29 02:54:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 02:54:00,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:00,434 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:00,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 02:54:00,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:00,636 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:00,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:00,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1982985848, now seen corresponding path program 1 times [2023-11-29 02:54:00,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:00,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272822259] [2023-11-29 02:54:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:00,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:00,645 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:00,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17425499] [2023-11-29 02:54:00,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:00,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:00,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:00,647 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:00,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 02:54:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:00,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:54:00,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:00,807 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 02:54:00,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:54:00,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:00,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272822259] [2023-11-29 02:54:00,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:00,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17425499] [2023-11-29 02:54:00,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17425499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:00,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:00,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:54:00,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897632526] [2023-11-29 02:54:00,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:00,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:54:00,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:00,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:54:00,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:54:00,809 INFO L87 Difference]: Start difference. First operand 225 states and 296 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 02:54:00,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:00,898 INFO L93 Difference]: Finished difference Result 230 states and 300 transitions. [2023-11-29 02:54:00,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:54:00,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 02:54:00,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:00,901 INFO L225 Difference]: With dead ends: 230 [2023-11-29 02:54:00,901 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 02:54:00,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:54:00,902 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:00,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 166 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:00,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 02:54:00,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2023-11-29 02:54:00,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 163 states have (on average 1.4233128834355828) internal successors, (232), 183 states have internal predecessors, (232), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 02:54:00,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 280 transitions. [2023-11-29 02:54:00,919 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 280 transitions. Word has length 48 [2023-11-29 02:54:00,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:00,920 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 280 transitions. [2023-11-29 02:54:00,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 02:54:00,920 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 280 transitions. [2023-11-29 02:54:00,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 02:54:00,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:00,921 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 02:54:00,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 02:54:01,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:01,121 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:01,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:01,122 INFO L85 PathProgramCache]: Analyzing trace with hash 424230821, now seen corresponding path program 1 times [2023-11-29 02:54:01,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:01,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103391274] [2023-11-29 02:54:01,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:01,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:01,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568091334] [2023-11-29 02:54:01,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:01,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:01,132 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:01,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 02:54:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:01,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:54:01,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:01,224 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 02:54:01,224 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:01,285 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 02:54:01,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:01,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103391274] [2023-11-29 02:54:01,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:01,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568091334] [2023-11-29 02:54:01,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568091334] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:01,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:01,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 02:54:01,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516301046] [2023-11-29 02:54:01,286 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:01,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:54:01,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:01,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:54:01,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:01,288 INFO L87 Difference]: Start difference. First operand 212 states and 280 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 02:54:01,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:01,445 INFO L93 Difference]: Finished difference Result 353 states and 437 transitions. [2023-11-29 02:54:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:54:01,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 51 [2023-11-29 02:54:01,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:01,448 INFO L225 Difference]: With dead ends: 353 [2023-11-29 02:54:01,449 INFO L226 Difference]: Without dead ends: 351 [2023-11-29 02:54:01,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:01,450 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 191 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:01,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 220 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:01,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-29 02:54:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 275. [2023-11-29 02:54:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 217 states have (on average 1.4377880184331797) internal successors, (312), 237 states have internal predecessors, (312), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 02:54:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 378 transitions. [2023-11-29 02:54:01,472 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 378 transitions. Word has length 51 [2023-11-29 02:54:01,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:01,472 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 378 transitions. [2023-11-29 02:54:01,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 02:54:01,472 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 378 transitions. [2023-11-29 02:54:01,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 02:54:01,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:01,473 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:54:01,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 02:54:01,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 02:54:01,674 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:01,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:01,675 INFO L85 PathProgramCache]: Analyzing trace with hash 266206954, now seen corresponding path program 1 times [2023-11-29 02:54:01,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:01,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108925981] [2023-11-29 02:54:01,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:01,681 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:01,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470004347] [2023-11-29 02:54:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:01,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:01,682 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:01,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 02:54:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:01,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:54:01,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:54:01,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:01,873 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 02:54:01,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:01,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108925981] [2023-11-29 02:54:01,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:01,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470004347] [2023-11-29 02:54:01,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470004347] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:01,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:01,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-29 02:54:01,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424082793] [2023-11-29 02:54:01,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:01,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:54:01,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:01,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:54:01,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:54:01,876 INFO L87 Difference]: Start difference. First operand 275 states and 378 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:54:02,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:02,128 INFO L93 Difference]: Finished difference Result 321 states and 420 transitions. [2023-11-29 02:54:02,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 02:54:02,128 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 52 [2023-11-29 02:54:02,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:02,131 INFO L225 Difference]: With dead ends: 321 [2023-11-29 02:54:02,131 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 02:54:02,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-11-29 02:54:02,132 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 89 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:02,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 551 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:02,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 02:54:02,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 297. [2023-11-29 02:54:02,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 237 states have (on average 1.409282700421941) internal successors, (334), 257 states have internal predecessors, (334), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 02:54:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 400 transitions. [2023-11-29 02:54:02,150 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 400 transitions. Word has length 52 [2023-11-29 02:54:02,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:02,151 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 400 transitions. [2023-11-29 02:54:02,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:54:02,151 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 400 transitions. [2023-11-29 02:54:02,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 02:54:02,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:02,152 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-29 02:54:02,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 02:54:02,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:02,353 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:02,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:02,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1428801452, now seen corresponding path program 1 times [2023-11-29 02:54:02,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:02,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748026026] [2023-11-29 02:54:02,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:02,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:02,361 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:02,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571638157] [2023-11-29 02:54:02,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:02,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:02,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:02,363 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:02,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 02:54:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:02,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:54:02,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 02:54:02,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:54:02,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:02,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748026026] [2023-11-29 02:54:02,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:02,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571638157] [2023-11-29 02:54:02,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571638157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:02,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:02,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:54:02,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247395836] [2023-11-29 02:54:02,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:02,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:54:02,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:02,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:54:02,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:02,505 INFO L87 Difference]: Start difference. First operand 297 states and 400 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:54:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:02,564 INFO L93 Difference]: Finished difference Result 321 states and 425 transitions. [2023-11-29 02:54:02,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:02,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2023-11-29 02:54:02,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:02,566 INFO L225 Difference]: With dead ends: 321 [2023-11-29 02:54:02,566 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 02:54:02,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 02:54:02,567 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 31 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:02,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 82 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:02,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 02:54:02,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 294. [2023-11-29 02:54:02,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 234 states have (on average 1.3547008547008548) internal successors, (317), 254 states have internal predecessors, (317), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 02:54:02,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 383 transitions. [2023-11-29 02:54:02,590 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 383 transitions. Word has length 57 [2023-11-29 02:54:02,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:02,590 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 383 transitions. [2023-11-29 02:54:02,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 02:54:02,590 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 383 transitions. [2023-11-29 02:54:02,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 02:54:02,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:02,591 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-29 02:54:02,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 02:54:02,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 02:54:02,792 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:02,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:02,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1114975756, now seen corresponding path program 2 times [2023-11-29 02:54:02,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:02,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27833554] [2023-11-29 02:54:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:02,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:02,799 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:02,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [358727188] [2023-11-29 02:54:02,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:54:02,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:02,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:02,801 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:02,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 02:54:02,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:54:02,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:02,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:54:02,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:02,968 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 02:54:02,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:03,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:03,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27833554] [2023-11-29 02:54:03,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:03,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358727188] [2023-11-29 02:54:03,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358727188] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:03,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:54:03,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 02:54:03,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966906852] [2023-11-29 02:54:03,079 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:03,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:54:03,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:03,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:54:03,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:54:03,081 INFO L87 Difference]: Start difference. First operand 294 states and 383 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 02:54:03,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:03,232 INFO L93 Difference]: Finished difference Result 430 states and 544 transitions. [2023-11-29 02:54:03,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:54:03,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 69 [2023-11-29 02:54:03,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:03,236 INFO L225 Difference]: With dead ends: 430 [2023-11-29 02:54:03,236 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 02:54:03,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:54:03,237 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 163 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:03,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 157 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:03,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 02:54:03,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 308. [2023-11-29 02:54:03,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 246 states have (on average 1.329268292682927) internal successors, (327), 266 states have internal predecessors, (327), 35 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 02:54:03,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 397 transitions. [2023-11-29 02:54:03,266 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 397 transitions. Word has length 69 [2023-11-29 02:54:03,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:03,267 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 397 transitions. [2023-11-29 02:54:03,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 02:54:03,267 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 397 transitions. [2023-11-29 02:54:03,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 02:54:03,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:03,268 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 02:54:03,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 02:54:03,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:03,469 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:03,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:03,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1868200099, now seen corresponding path program 1 times [2023-11-29 02:54:03,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:03,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573413309] [2023-11-29 02:54:03,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:03,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:03,476 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:03,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849110554] [2023-11-29 02:54:03,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:03,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:03,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:03,477 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:03,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 02:54:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:03,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:54:03,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 02:54:03,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:54:03,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:03,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573413309] [2023-11-29 02:54:03,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:03,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849110554] [2023-11-29 02:54:03,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849110554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:03,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:03,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:54:03,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867845852] [2023-11-29 02:54:03,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:03,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:54:03,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:03,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:54:03,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:03,541 INFO L87 Difference]: Start difference. First operand 308 states and 397 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:03,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:03,581 INFO L93 Difference]: Finished difference Result 308 states and 397 transitions. [2023-11-29 02:54:03,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:03,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 76 [2023-11-29 02:54:03,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:03,584 INFO L225 Difference]: With dead ends: 308 [2023-11-29 02:54:03,584 INFO L226 Difference]: Without dead ends: 307 [2023-11-29 02:54:03,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 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 02:54:03,585 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:03,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 113 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:03,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-11-29 02:54:03,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2023-11-29 02:54:03,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 246 states have (on average 1.3130081300813008) internal successors, (323), 265 states have internal predecessors, (323), 35 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 02:54:03,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 393 transitions. [2023-11-29 02:54:03,605 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 393 transitions. Word has length 76 [2023-11-29 02:54:03,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:03,605 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 393 transitions. [2023-11-29 02:54:03,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:03,606 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 393 transitions. [2023-11-29 02:54:03,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:54:03,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:03,607 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 02:54:03,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 02:54:03,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:03,808 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:03,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:03,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2079628105, now seen corresponding path program 1 times [2023-11-29 02:54:03,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:03,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454010794] [2023-11-29 02:54:03,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:03,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:03,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:03,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963125401] [2023-11-29 02:54:03,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:03,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:03,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:03,816 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:03,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 02:54:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:03,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:54:03,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 02:54:04,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:54:04,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:04,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454010794] [2023-11-29 02:54:04,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:04,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963125401] [2023-11-29 02:54:04,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963125401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:04,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:04,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:54:04,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671318475] [2023-11-29 02:54:04,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:04,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:54:04,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:04,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:54:04,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:54:04,006 INFO L87 Difference]: Start difference. First operand 307 states and 393 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, (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 02:54:04,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:04,119 INFO L93 Difference]: Finished difference Result 443 states and 577 transitions. [2023-11-29 02:54:04,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:54:04,120 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, (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 77 [2023-11-29 02:54:04,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:04,123 INFO L225 Difference]: With dead ends: 443 [2023-11-29 02:54:04,123 INFO L226 Difference]: Without dead ends: 441 [2023-11-29 02:54:04,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 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 02:54:04,124 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 51 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:04,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 125 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:04,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-29 02:54:04,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 415. [2023-11-29 02:54:04,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 342 states have (on average 1.3391812865497077) internal successors, (458), 361 states have internal predecessors, (458), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 02:54:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 552 transitions. [2023-11-29 02:54:04,155 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 552 transitions. Word has length 77 [2023-11-29 02:54:04,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:04,155 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 552 transitions. [2023-11-29 02:54:04,155 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, (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 02:54:04,156 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 552 transitions. [2023-11-29 02:54:04,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 02:54:04,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:04,157 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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 02:54:04,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 02:54:04,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 02:54:04,357 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:04,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:04,358 INFO L85 PathProgramCache]: Analyzing trace with hash -43961697, now seen corresponding path program 1 times [2023-11-29 02:54:04,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:04,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691758723] [2023-11-29 02:54:04,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:04,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:04,367 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:04,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003647739] [2023-11-29 02:54:04,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:04,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:04,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:04,369 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:04,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 02:54:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:04,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:54:04,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:04,613 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 02:54:04,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:54:04,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:04,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691758723] [2023-11-29 02:54:04,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:04,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003647739] [2023-11-29 02:54:04,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003647739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:04,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:04,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:54:04,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249577614] [2023-11-29 02:54:04,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:04,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:54:04,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:04,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:54:04,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:54:04,616 INFO L87 Difference]: Start difference. First operand 415 states and 552 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:04,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:04,757 INFO L93 Difference]: Finished difference Result 438 states and 573 transitions. [2023-11-29 02:54:04,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:54:04,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 78 [2023-11-29 02:54:04,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:04,761 INFO L225 Difference]: With dead ends: 438 [2023-11-29 02:54:04,761 INFO L226 Difference]: Without dead ends: 437 [2023-11-29 02:54:04,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:54:04,762 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 82 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:04,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 146 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:04,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-11-29 02:54:04,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 424. [2023-11-29 02:54:04,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 351 states have (on average 1.3276353276353277) internal successors, (466), 370 states have internal predecessors, (466), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 02:54:04,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 560 transitions. [2023-11-29 02:54:04,803 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 560 transitions. Word has length 78 [2023-11-29 02:54:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:04,803 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 560 transitions. [2023-11-29 02:54:04,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:04,804 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 560 transitions. [2023-11-29 02:54:04,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 02:54:04,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:04,805 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 02:54:04,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 02:54:05,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 02:54:05,005 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:05,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:05,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1362812487, now seen corresponding path program 1 times [2023-11-29 02:54:05,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:05,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047609608] [2023-11-29 02:54:05,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:05,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:05,016 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:05,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [788980474] [2023-11-29 02:54:05,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:05,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:05,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:05,018 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:05,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 02:54:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:05,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:54:05,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:05,202 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 02:54:05,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:54:05,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:05,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047609608] [2023-11-29 02:54:05,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:05,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788980474] [2023-11-29 02:54:05,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788980474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:05,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:05,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:54:05,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843517219] [2023-11-29 02:54:05,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:05,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:54:05,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:05,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:54:05,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:54:05,204 INFO L87 Difference]: Start difference. First operand 424 states and 560 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:05,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:05,288 INFO L93 Difference]: Finished difference Result 434 states and 566 transitions. [2023-11-29 02:54:05,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:05,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2023-11-29 02:54:05,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:05,291 INFO L225 Difference]: With dead ends: 434 [2023-11-29 02:54:05,291 INFO L226 Difference]: Without dead ends: 432 [2023-11-29 02:54:05,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 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 02:54:05,292 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 36 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:05,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 113 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:05,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-11-29 02:54:05,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 427. [2023-11-29 02:54:05,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 354 states have (on average 1.3022598870056497) internal successors, (461), 373 states have internal predecessors, (461), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 02:54:05,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 555 transitions. [2023-11-29 02:54:05,318 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 555 transitions. Word has length 79 [2023-11-29 02:54:05,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:05,319 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 555 transitions. [2023-11-29 02:54:05,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:05,319 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 555 transitions. [2023-11-29 02:54:05,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 02:54:05,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:05,320 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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 02:54:05,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 02:54:05,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 02:54:05,521 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:05,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:05,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1411383490, now seen corresponding path program 1 times [2023-11-29 02:54:05,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:05,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097345443] [2023-11-29 02:54:05,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:05,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:05,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:05,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352881761] [2023-11-29 02:54:05,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:05,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:05,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:05,531 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:05,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 02:54:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:05,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:54:05,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:05,725 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:54:05,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 02:54:05,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:05,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097345443] [2023-11-29 02:54:05,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:05,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352881761] [2023-11-29 02:54:05,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352881761] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:05,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:05,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-11-29 02:54:05,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112981756] [2023-11-29 02:54:05,878 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:05,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 02:54:05,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:05,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 02:54:05,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:54:05,879 INFO L87 Difference]: Start difference. First operand 427 states and 555 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 02:54:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:06,236 INFO L93 Difference]: Finished difference Result 776 states and 985 transitions. [2023-11-29 02:54:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 02:54:06,237 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 84 [2023-11-29 02:54:06,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:06,240 INFO L225 Difference]: With dead ends: 776 [2023-11-29 02:54:06,240 INFO L226 Difference]: Without dead ends: 565 [2023-11-29 02:54:06,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 02:54:06,243 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 168 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:06,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 715 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:54:06,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-11-29 02:54:06,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 524. [2023-11-29 02:54:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 441 states have (on average 1.2789115646258504) internal successors, (564), 460 states have internal predecessors, (564), 55 states have call successors, (55), 8 states have call predecessors, (55), 8 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-29 02:54:06,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 674 transitions. [2023-11-29 02:54:06,270 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 674 transitions. Word has length 84 [2023-11-29 02:54:06,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:06,271 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 674 transitions. [2023-11-29 02:54:06,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 02:54:06,271 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 674 transitions. [2023-11-29 02:54:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 02:54:06,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:06,272 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 02:54:06,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 02:54:06,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 02:54:06,473 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:06,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:06,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1411383508, now seen corresponding path program 1 times [2023-11-29 02:54:06,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:06,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007765109] [2023-11-29 02:54:06,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:06,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:06,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:06,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999042223] [2023-11-29 02:54:06,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:06,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:06,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:06,485 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:06,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 02:54:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:06,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:54:06,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 02:54:06,867 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:07,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:07,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007765109] [2023-11-29 02:54:07,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:07,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999042223] [2023-11-29 02:54:07,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999042223] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:07,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:54:07,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:54:07,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722089542] [2023-11-29 02:54:07,303 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:07,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:54:07,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:07,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:54:07,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:54:07,304 INFO L87 Difference]: Start difference. First operand 524 states and 674 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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 02:54:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:07,549 INFO L93 Difference]: Finished difference Result 607 states and 758 transitions. [2023-11-29 02:54:07,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:54:07,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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 84 [2023-11-29 02:54:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:07,553 INFO L225 Difference]: With dead ends: 607 [2023-11-29 02:54:07,553 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 02:54:07,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:54:07,555 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 80 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:07,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 270 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:54:07,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 02:54:07,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 442. [2023-11-29 02:54:07,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 365 states have (on average 1.2767123287671234) internal successors, (466), 384 states have internal predecessors, (466), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 02:54:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 564 transitions. [2023-11-29 02:54:07,592 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 564 transitions. Word has length 84 [2023-11-29 02:54:07,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:07,593 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 564 transitions. [2023-11-29 02:54:07,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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 02:54:07,593 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 564 transitions. [2023-11-29 02:54:07,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 02:54:07,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:07,611 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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 02:54:07,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 02:54:07,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 02:54:07,816 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:07,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash 803215874, now seen corresponding path program 1 times [2023-11-29 02:54:07,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:07,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708083452] [2023-11-29 02:54:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:07,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:07,824 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:07,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1588058879] [2023-11-29 02:54:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:07,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:07,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:07,825 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:07,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 02:54:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:07,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:54:07,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:08,138 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 02:54:08,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:08,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:08,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708083452] [2023-11-29 02:54:08,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:08,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588058879] [2023-11-29 02:54:08,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588058879] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:08,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:54:08,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 02:54:08,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820764170] [2023-11-29 02:54:08,441 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:08,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:54:08,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:08,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:54:08,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:54:08,443 INFO L87 Difference]: Start difference. First operand 442 states and 564 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 02:54:08,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:08,601 INFO L93 Difference]: Finished difference Result 458 states and 571 transitions. [2023-11-29 02:54:08,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:54:08,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 85 [2023-11-29 02:54:08,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:08,604 INFO L225 Difference]: With dead ends: 458 [2023-11-29 02:54:08,604 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 02:54:08,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:54:08,606 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 60 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:08,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 154 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:08,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 02:54:08,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 442. [2023-11-29 02:54:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 365 states have (on average 1.273972602739726) internal successors, (465), 384 states have internal predecessors, (465), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 02:54:08,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 563 transitions. [2023-11-29 02:54:08,642 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 563 transitions. Word has length 85 [2023-11-29 02:54:08,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:08,642 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 563 transitions. [2023-11-29 02:54:08,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 02:54:08,642 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 563 transitions. [2023-11-29 02:54:08,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 02:54:08,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:08,643 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 02:54:08,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 02:54:08,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 02:54:08,844 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:08,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:08,844 INFO L85 PathProgramCache]: Analyzing trace with hash -870111594, now seen corresponding path program 1 times [2023-11-29 02:54:08,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:08,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977765039] [2023-11-29 02:54:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:08,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:08,851 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:08,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2120628325] [2023-11-29 02:54:08,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:08,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:08,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:08,852 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:08,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 02:54:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:08,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:54:08,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:08,935 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 02:54:08,935 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:54:08,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:08,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977765039] [2023-11-29 02:54:08,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:08,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120628325] [2023-11-29 02:54:08,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120628325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:08,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:08,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:54:08,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759002696] [2023-11-29 02:54:08,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:08,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:54:08,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:08,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:54:08,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:54:08,937 INFO L87 Difference]: Start difference. First operand 442 states and 563 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:09,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:09,063 INFO L93 Difference]: Finished difference Result 472 states and 594 transitions. [2023-11-29 02:54:09,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:54:09,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 86 [2023-11-29 02:54:09,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:09,066 INFO L225 Difference]: With dead ends: 472 [2023-11-29 02:54:09,066 INFO L226 Difference]: Without dead ends: 470 [2023-11-29 02:54:09,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:54:09,067 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 78 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:09,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 187 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:09,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-11-29 02:54:09,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 456. [2023-11-29 02:54:09,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 380 states have (on average 1.2605263157894737) internal successors, (479), 398 states have internal predecessors, (479), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 02:54:09,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 577 transitions. [2023-11-29 02:54:09,109 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 577 transitions. Word has length 86 [2023-11-29 02:54:09,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:09,110 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 577 transitions. [2023-11-29 02:54:09,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:09,110 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 577 transitions. [2023-11-29 02:54:09,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 02:54:09,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:09,111 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 02:54:09,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-29 02:54:09,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 02:54:09,312 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:09,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:09,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1203655548, now seen corresponding path program 1 times [2023-11-29 02:54:09,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:09,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368379803] [2023-11-29 02:54:09,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:09,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:09,320 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:09,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395172114] [2023-11-29 02:54:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:09,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:09,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:09,322 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:09,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 02:54:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:09,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:54:09,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 02:54:09,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:09,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:09,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368379803] [2023-11-29 02:54:09,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:09,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395172114] [2023-11-29 02:54:09,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395172114] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:09,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:54:09,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 02:54:09,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774527180] [2023-11-29 02:54:09,998 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:09,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:54:09,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:09,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:54:09,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:54:10,000 INFO L87 Difference]: Start difference. First operand 456 states and 577 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 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 02:54:10,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:10,248 INFO L93 Difference]: Finished difference Result 465 states and 584 transitions. [2023-11-29 02:54:10,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:54:10,249 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 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 87 [2023-11-29 02:54:10,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:10,252 INFO L225 Difference]: With dead ends: 465 [2023-11-29 02:54:10,252 INFO L226 Difference]: Without dead ends: 461 [2023-11-29 02:54:10,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:54:10,253 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 57 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:10,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 272 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:54:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-29 02:54:10,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 459. [2023-11-29 02:54:10,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 383 states have (on average 1.2584856396866841) internal successors, (482), 401 states have internal predecessors, (482), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 02:54:10,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 580 transitions. [2023-11-29 02:54:10,290 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 580 transitions. Word has length 87 [2023-11-29 02:54:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:10,291 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 580 transitions. [2023-11-29 02:54:10,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 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 02:54:10,291 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 580 transitions. [2023-11-29 02:54:10,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 02:54:10,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:10,292 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-11-29 02:54:10,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 02:54:10,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 02:54:10,493 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:10,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:10,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2118101939, now seen corresponding path program 3 times [2023-11-29 02:54:10,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:10,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319094153] [2023-11-29 02:54:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:10,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:10,499 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:10,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074879098] [2023-11-29 02:54:10,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:54:10,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:10,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:10,501 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:10,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 02:54:10,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 02:54:10,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:10,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:54:10,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:10,628 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-11-29 02:54:10,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:54:10,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:10,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319094153] [2023-11-29 02:54:10,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:10,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074879098] [2023-11-29 02:54:10,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074879098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:10,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:10,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:54:10,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020461908] [2023-11-29 02:54:10,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:10,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:54:10,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:10,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:54:10,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:54:10,631 INFO L87 Difference]: Start difference. First operand 459 states and 580 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 02:54:10,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:10,692 INFO L93 Difference]: Finished difference Result 459 states and 580 transitions. [2023-11-29 02:54:10,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:10,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 95 [2023-11-29 02:54:10,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:10,696 INFO L225 Difference]: With dead ends: 459 [2023-11-29 02:54:10,696 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 02:54:10,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 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 02:54:10,697 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 92 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:10,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 54 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:10,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 02:54:10,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 357. [2023-11-29 02:54:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 294 states have (on average 1.2142857142857142) internal successors, (357), 309 states have internal predecessors, (357), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 02:54:10,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 435 transitions. [2023-11-29 02:54:10,730 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 435 transitions. Word has length 95 [2023-11-29 02:54:10,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:10,730 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 435 transitions. [2023-11-29 02:54:10,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 02:54:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 435 transitions. [2023-11-29 02:54:10,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 02:54:10,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:10,732 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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] [2023-11-29 02:54:10,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 02:54:10,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 02:54:10,933 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:10,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:10,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1494603811, now seen corresponding path program 1 times [2023-11-29 02:54:10,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:10,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030577335] [2023-11-29 02:54:10,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:10,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:10,942 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:10,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678880247] [2023-11-29 02:54:10,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:10,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:10,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:10,944 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:10,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 02:54:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:11,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:54:11,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:11,364 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 02:54:11,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:12,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:12,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030577335] [2023-11-29 02:54:12,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:12,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678880247] [2023-11-29 02:54:12,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678880247] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:12,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:54:12,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:54:12,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762423172] [2023-11-29 02:54:12,415 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:12,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:54:12,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:12,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:54:12,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:54:12,416 INFO L87 Difference]: Start difference. First operand 357 states and 435 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:54:12,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:12,744 INFO L93 Difference]: Finished difference Result 359 states and 435 transitions. [2023-11-29 02:54:12,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:54:12,744 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2023-11-29 02:54:12,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:12,746 INFO L225 Difference]: With dead ends: 359 [2023-11-29 02:54:12,746 INFO L226 Difference]: Without dead ends: 358 [2023-11-29 02:54:12,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:54:12,747 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 13 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:12,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 234 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:54:12,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-29 02:54:12,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2023-11-29 02:54:12,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 294 states have (on average 1.2108843537414966) internal successors, (356), 309 states have internal predecessors, (356), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 02:54:12,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 434 transitions. [2023-11-29 02:54:12,778 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 434 transitions. Word has length 101 [2023-11-29 02:54:12,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:12,778 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 434 transitions. [2023-11-29 02:54:12,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:54:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 434 transitions. [2023-11-29 02:54:12,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 02:54:12,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:12,780 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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] [2023-11-29 02:54:12,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 02:54:12,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:12,980 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:12,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:12,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1795189669, now seen corresponding path program 1 times [2023-11-29 02:54:12,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:12,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056997701] [2023-11-29 02:54:12,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:12,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:12,990 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:12,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415193043] [2023-11-29 02:54:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:12,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:12,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:12,992 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:12,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 02:54:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:13,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:54:13,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:13,101 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-29 02:54:13,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:54:13,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:13,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056997701] [2023-11-29 02:54:13,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:13,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415193043] [2023-11-29 02:54:13,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415193043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:13,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:13,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:54:13,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878440911] [2023-11-29 02:54:13,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:13,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:54:13,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:13,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:54:13,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:54:13,103 INFO L87 Difference]: Start difference. First operand 357 states and 434 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 02:54:13,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:13,278 INFO L93 Difference]: Finished difference Result 361 states and 434 transitions. [2023-11-29 02:54:13,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:54:13,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 103 [2023-11-29 02:54:13,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:13,281 INFO L225 Difference]: With dead ends: 361 [2023-11-29 02:54:13,281 INFO L226 Difference]: Without dead ends: 314 [2023-11-29 02:54:13,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:13,282 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 25 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:13,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 223 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:13,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-29 02:54:13,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 310. [2023-11-29 02:54:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 254 states have (on average 1.236220472440945) internal successors, (314), 268 states have internal predecessors, (314), 35 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 02:54:13,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 384 transitions. [2023-11-29 02:54:13,309 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 384 transitions. Word has length 103 [2023-11-29 02:54:13,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:13,309 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 384 transitions. [2023-11-29 02:54:13,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 02:54:13,310 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 384 transitions. [2023-11-29 02:54:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 02:54:13,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:13,310 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2023-11-29 02:54:13,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 02:54:13,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 02:54:13,516 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:13,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:13,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1390862043, now seen corresponding path program 1 times [2023-11-29 02:54:13,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:13,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059324533] [2023-11-29 02:54:13,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:13,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:13,523 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:13,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496933897] [2023-11-29 02:54:13,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:13,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:13,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:13,524 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:13,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 02:54:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:13,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:54:13,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 02:54:13,636 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 02:54:13,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:13,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059324533] [2023-11-29 02:54:13,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:13,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496933897] [2023-11-29 02:54:13,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496933897] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:13,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:13,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 02:54:13,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718480764] [2023-11-29 02:54:13,720 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:13,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:54:13,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:13,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:54:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:54:13,721 INFO L87 Difference]: Start difference. First operand 310 states and 384 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 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 02:54:13,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:13,936 INFO L93 Difference]: Finished difference Result 832 states and 1013 transitions. [2023-11-29 02:54:13,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:54:13,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 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 105 [2023-11-29 02:54:13,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:13,941 INFO L225 Difference]: With dead ends: 832 [2023-11-29 02:54:13,941 INFO L226 Difference]: Without dead ends: 831 [2023-11-29 02:54:13,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:54:13,942 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 397 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:13,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 400 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:54:13,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2023-11-29 02:54:13,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 368. [2023-11-29 02:54:13,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 300 states have (on average 1.2533333333333334) internal successors, (376), 314 states have internal predecessors, (376), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 02:54:13,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 470 transitions. [2023-11-29 02:54:13,983 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 470 transitions. Word has length 105 [2023-11-29 02:54:13,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:13,983 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 470 transitions. [2023-11-29 02:54:13,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 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 02:54:13,984 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 470 transitions. [2023-11-29 02:54:13,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 02:54:13,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:13,985 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-29 02:54:13,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 02:54:14,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:14,185 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:14,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:14,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1621581694, now seen corresponding path program 2 times [2023-11-29 02:54:14,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:14,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897054214] [2023-11-29 02:54:14,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:14,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:14,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:14,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883063428] [2023-11-29 02:54:14,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:54:14,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:14,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:14,193 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:14,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 02:54:14,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:54:14,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:14,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:54:14,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:14,408 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 02:54:14,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:14,595 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 02:54:14,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:14,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897054214] [2023-11-29 02:54:14,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:14,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883063428] [2023-11-29 02:54:14,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883063428] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:14,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:14,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2023-11-29 02:54:14,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327802713] [2023-11-29 02:54:14,596 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:14,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 02:54:14,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:14,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 02:54:14,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:54:14,598 INFO L87 Difference]: Start difference. First operand 368 states and 470 transitions. Second operand has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 02:54:14,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:14,965 INFO L93 Difference]: Finished difference Result 554 states and 681 transitions. [2023-11-29 02:54:14,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 02:54:14,966 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 108 [2023-11-29 02:54:14,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:14,969 INFO L225 Difference]: With dead ends: 554 [2023-11-29 02:54:14,969 INFO L226 Difference]: Without dead ends: 434 [2023-11-29 02:54:14,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 02:54:14,970 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 154 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:14,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 661 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:14,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-29 02:54:15,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 405. [2023-11-29 02:54:15,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 329 states have (on average 1.2279635258358663) internal successors, (404), 343 states have internal predecessors, (404), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 02:54:15,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 504 transitions. [2023-11-29 02:54:15,010 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 504 transitions. Word has length 108 [2023-11-29 02:54:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:15,011 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 504 transitions. [2023-11-29 02:54:15,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 02:54:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 504 transitions. [2023-11-29 02:54:15,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 02:54:15,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:15,012 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-29 02:54:15,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 02:54:15,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:15,213 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:15,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:15,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2049797835, now seen corresponding path program 2 times [2023-11-29 02:54:15,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:15,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920533933] [2023-11-29 02:54:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:15,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:15,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:15,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409704589] [2023-11-29 02:54:15,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:54:15,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:15,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:15,221 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:15,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 02:54:15,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 02:54:15,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:15,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:54:15,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-11-29 02:54:15,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:16,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:16,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920533933] [2023-11-29 02:54:16,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:16,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409704589] [2023-11-29 02:54:16,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409704589] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:16,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:54:16,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 02:54:16,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732529200] [2023-11-29 02:54:16,188 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:16,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:54:16,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:16,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:54:16,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:54:16,190 INFO L87 Difference]: Start difference. First operand 405 states and 504 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:16,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:16,365 INFO L93 Difference]: Finished difference Result 490 states and 607 transitions. [2023-11-29 02:54:16,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:54:16,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 110 [2023-11-29 02:54:16,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:16,369 INFO L225 Difference]: With dead ends: 490 [2023-11-29 02:54:16,369 INFO L226 Difference]: Without dead ends: 489 [2023-11-29 02:54:16,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:54:16,370 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 131 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:16,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 100 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:16,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-29 02:54:16,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 405. [2023-11-29 02:54:16,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 329 states have (on average 1.221884498480243) internal successors, (402), 343 states have internal predecessors, (402), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 02:54:16,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 502 transitions. [2023-11-29 02:54:16,417 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 502 transitions. Word has length 110 [2023-11-29 02:54:16,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:16,417 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 502 transitions. [2023-11-29 02:54:16,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:16,418 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 502 transitions. [2023-11-29 02:54:16,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 02:54:16,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:16,419 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-29 02:54:16,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 02:54:16,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:16,619 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:16,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:16,620 INFO L85 PathProgramCache]: Analyzing trace with hash 880776641, now seen corresponding path program 2 times [2023-11-29 02:54:16,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:16,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459550757] [2023-11-29 02:54:16,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:16,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:16,629 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:16,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636957434] [2023-11-29 02:54:16,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:54:16,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:16,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:16,630 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:16,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 02:54:16,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 02:54:16,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:16,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:54:16,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-11-29 02:54:16,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:17,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:17,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459550757] [2023-11-29 02:54:17,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:17,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636957434] [2023-11-29 02:54:17,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636957434] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:17,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:54:17,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 02:54:17,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704101590] [2023-11-29 02:54:17,159 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:17,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:54:17,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:17,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:54:17,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:54:17,160 INFO L87 Difference]: Start difference. First operand 405 states and 502 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:17,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:17,281 INFO L93 Difference]: Finished difference Result 409 states and 502 transitions. [2023-11-29 02:54:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:54:17,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 111 [2023-11-29 02:54:17,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:17,283 INFO L225 Difference]: With dead ends: 409 [2023-11-29 02:54:17,283 INFO L226 Difference]: Without dead ends: 408 [2023-11-29 02:54:17,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:54:17,284 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 64 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:17,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 98 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:17,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2023-11-29 02:54:17,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 404. [2023-11-29 02:54:17,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 329 states have (on average 1.209726443768997) internal successors, (398), 342 states have internal predecessors, (398), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 02:54:17,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 498 transitions. [2023-11-29 02:54:17,311 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 498 transitions. Word has length 111 [2023-11-29 02:54:17,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:17,311 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 498 transitions. [2023-11-29 02:54:17,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 02:54:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 498 transitions. [2023-11-29 02:54:17,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 02:54:17,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:17,312 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-29 02:54:17,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 02:54:17,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 02:54:17,514 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:17,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:17,514 INFO L85 PathProgramCache]: Analyzing trace with hash 317797507, now seen corresponding path program 2 times [2023-11-29 02:54:17,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:17,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159614619] [2023-11-29 02:54:17,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:17,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:17,523 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:17,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038762258] [2023-11-29 02:54:17,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:54:17,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:17,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:17,525 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:17,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 02:54:17,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:54:17,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:17,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 02:54:17,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:18,078 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 02:54:18,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:19,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:19,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159614619] [2023-11-29 02:54:19,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:19,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038762258] [2023-11-29 02:54:19,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038762258] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:19,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:54:19,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:54:19,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30746513] [2023-11-29 02:54:19,205 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:19,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:54:19,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:19,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:54:19,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:54:19,207 INFO L87 Difference]: Start difference. First operand 404 states and 498 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 02:54:19,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:19,702 INFO L93 Difference]: Finished difference Result 509 states and 619 transitions. [2023-11-29 02:54:19,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:54:19,702 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2023-11-29 02:54:19,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:19,705 INFO L225 Difference]: With dead ends: 509 [2023-11-29 02:54:19,705 INFO L226 Difference]: Without dead ends: 508 [2023-11-29 02:54:19,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:54:19,706 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 88 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:19,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 475 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:54:19,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-29 02:54:19,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 458. [2023-11-29 02:54:19,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 377 states have (on average 1.2015915119363396) internal successors, (453), 390 states have internal predecessors, (453), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-29 02:54:19,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 565 transitions. [2023-11-29 02:54:19,754 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 565 transitions. Word has length 113 [2023-11-29 02:54:19,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:19,755 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 565 transitions. [2023-11-29 02:54:19,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 02:54:19,755 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 565 transitions. [2023-11-29 02:54:19,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 02:54:19,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:19,757 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 02:54:19,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 02:54:19,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:19,960 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:19,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:19,961 INFO L85 PathProgramCache]: Analyzing trace with hash 203159010, now seen corresponding path program 2 times [2023-11-29 02:54:19,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:19,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152647476] [2023-11-29 02:54:19,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:19,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:19,971 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:19,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [958737348] [2023-11-29 02:54:19,971 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:54:19,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:19,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:19,972 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:19,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 02:54:20,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:54:20,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:20,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:54:20,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:20,148 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 02:54:20,148 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:20,264 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 02:54:20,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:20,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152647476] [2023-11-29 02:54:20,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:20,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958737348] [2023-11-29 02:54:20,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958737348] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:20,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:20,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-11-29 02:54:20,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424644715] [2023-11-29 02:54:20,265 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:20,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:54:20,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:20,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:54:20,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:54:20,266 INFO L87 Difference]: Start difference. First operand 458 states and 565 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 02:54:20,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:20,353 INFO L93 Difference]: Finished difference Result 476 states and 577 transitions. [2023-11-29 02:54:20,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:54:20,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 127 [2023-11-29 02:54:20,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:20,356 INFO L225 Difference]: With dead ends: 476 [2023-11-29 02:54:20,356 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 02:54:20,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 245 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:54:20,357 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 62 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:20,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 176 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:20,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 02:54:20,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 458. [2023-11-29 02:54:20,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 377 states have (on average 1.193633952254642) internal successors, (450), 390 states have internal predecessors, (450), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-29 02:54:20,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 562 transitions. [2023-11-29 02:54:20,388 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 562 transitions. Word has length 127 [2023-11-29 02:54:20,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:20,388 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 562 transitions. [2023-11-29 02:54:20,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 02:54:20,388 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 562 transitions. [2023-11-29 02:54:20,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 02:54:20,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:20,390 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1] [2023-11-29 02:54:20,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 02:54:20,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:20,590 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:20,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:20,590 INFO L85 PathProgramCache]: Analyzing trace with hash 465088482, now seen corresponding path program 2 times [2023-11-29 02:54:20,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:20,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839824303] [2023-11-29 02:54:20,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:20,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:20,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:20,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [485996179] [2023-11-29 02:54:20,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:54:20,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:20,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:20,600 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:20,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 02:54:20,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:54:20,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:20,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:54:20,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:20,735 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 02:54:20,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 02:54:20,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:20,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839824303] [2023-11-29 02:54:20,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:20,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485996179] [2023-11-29 02:54:20,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485996179] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:20,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:20,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 02:54:20,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129839292] [2023-11-29 02:54:20,853 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:20,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:54:20,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:20,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:54:20,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:54:20,854 INFO L87 Difference]: Start difference. First operand 458 states and 562 transitions. Second operand has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2023-11-29 02:54:21,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:21,461 INFO L93 Difference]: Finished difference Result 1197 states and 1481 transitions. [2023-11-29 02:54:21,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:54:21,461 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 129 [2023-11-29 02:54:21,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:21,468 INFO L225 Difference]: With dead ends: 1197 [2023-11-29 02:54:21,468 INFO L226 Difference]: Without dead ends: 1195 [2023-11-29 02:54:21,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:54:21,469 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 558 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:21,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 421 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:54:21,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2023-11-29 02:54:21,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 496. [2023-11-29 02:54:21,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 410 states have (on average 1.1829268292682926) internal successors, (485), 423 states have internal predecessors, (485), 61 states have call successors, (61), 11 states have call predecessors, (61), 11 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 02:54:21,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 607 transitions. [2023-11-29 02:54:21,533 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 607 transitions. Word has length 129 [2023-11-29 02:54:21,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:21,533 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 607 transitions. [2023-11-29 02:54:21,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2023-11-29 02:54:21,534 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 607 transitions. [2023-11-29 02:54:21,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 02:54:21,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:21,535 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-11-29 02:54:21,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 02:54:21,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:21,736 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:21,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:21,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1532794445, now seen corresponding path program 2 times [2023-11-29 02:54:21,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:21,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89461563] [2023-11-29 02:54:21,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:21,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:21,744 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:21,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230590939] [2023-11-29 02:54:21,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:54:21,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:21,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:21,746 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:21,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 02:54:21,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 02:54:21,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:21,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:54:21,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:21,822 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2023-11-29 02:54:21,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:54:21,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:21,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89461563] [2023-11-29 02:54:21,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:21,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230590939] [2023-11-29 02:54:21,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230590939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:21,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:21,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:54:21,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216457081] [2023-11-29 02:54:21,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:21,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:54:21,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:21,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:54:21,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:54:21,824 INFO L87 Difference]: Start difference. First operand 496 states and 607 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:54:21,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:21,924 INFO L93 Difference]: Finished difference Result 509 states and 620 transitions. [2023-11-29 02:54:21,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:54:21,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 130 [2023-11-29 02:54:21,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:21,928 INFO L225 Difference]: With dead ends: 509 [2023-11-29 02:54:21,928 INFO L226 Difference]: Without dead ends: 508 [2023-11-29 02:54:21,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 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 02:54:21,929 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 15 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:21,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 201 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:21,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-29 02:54:21,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 506. [2023-11-29 02:54:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 419 states have (on average 1.1789976133651552) internal successors, (494), 432 states have internal predecessors, (494), 61 states have call successors, (61), 12 states have call predecessors, (61), 12 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 02:54:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 616 transitions. [2023-11-29 02:54:21,988 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 616 transitions. Word has length 130 [2023-11-29 02:54:21,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:21,988 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 616 transitions. [2023-11-29 02:54:21,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:54:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 616 transitions. [2023-11-29 02:54:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 02:54:21,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:21,990 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 02:54:21,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 02:54:22,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:22,191 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:22,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:22,191 INFO L85 PathProgramCache]: Analyzing trace with hash -168836972, now seen corresponding path program 1 times [2023-11-29 02:54:22,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:22,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762261046] [2023-11-29 02:54:22,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:22,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:22,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:22,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1351988434] [2023-11-29 02:54:22,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:22,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:22,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:22,200 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:22,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 02:54:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:22,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:54:22,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:22,563 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 02:54:22,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:22,891 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 34 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 02:54:22,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:22,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762261046] [2023-11-29 02:54:22,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:22,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351988434] [2023-11-29 02:54:22,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351988434] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:22,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:22,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 02:54:22,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417839478] [2023-11-29 02:54:22,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:22,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:54:22,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:22,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:54:22,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:54:22,894 INFO L87 Difference]: Start difference. First operand 506 states and 616 transitions. Second operand has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 02:54:23,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:23,184 INFO L93 Difference]: Finished difference Result 639 states and 778 transitions. [2023-11-29 02:54:23,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:54:23,184 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 129 [2023-11-29 02:54:23,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:23,187 INFO L225 Difference]: With dead ends: 639 [2023-11-29 02:54:23,187 INFO L226 Difference]: Without dead ends: 637 [2023-11-29 02:54:23,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:54:23,188 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 190 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:23,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 296 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:54:23,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2023-11-29 02:54:23,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 534. [2023-11-29 02:54:23,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 443 states have (on average 1.1941309255079007) internal successors, (529), 456 states have internal predecessors, (529), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-29 02:54:23,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 659 transitions. [2023-11-29 02:54:23,247 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 659 transitions. Word has length 129 [2023-11-29 02:54:23,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:23,248 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 659 transitions. [2023-11-29 02:54:23,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 02:54:23,248 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 659 transitions. [2023-11-29 02:54:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 02:54:23,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:23,250 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 02:54:23,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 02:54:23,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 02:54:23,450 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:23,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash -938721521, now seen corresponding path program 1 times [2023-11-29 02:54:23,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:23,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667672008] [2023-11-29 02:54:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:23,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:23,459 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:23,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591169146] [2023-11-29 02:54:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:23,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:23,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:23,460 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:23,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 02:54:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:23,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:54:23,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:23,719 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 326 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 02:54:23,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 02:54:23,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:23,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667672008] [2023-11-29 02:54:23,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:23,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591169146] [2023-11-29 02:54:23,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591169146] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:23,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:23,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25 [2023-11-29 02:54:23,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068178663] [2023-11-29 02:54:23,930 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:23,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 02:54:23,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:23,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 02:54:23,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:54:23,932 INFO L87 Difference]: Start difference. First operand 534 states and 659 transitions. Second operand has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-29 02:54:24,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:24,425 INFO L93 Difference]: Finished difference Result 963 states and 1182 transitions. [2023-11-29 02:54:24,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-29 02:54:24,426 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 130 [2023-11-29 02:54:24,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:24,430 INFO L225 Difference]: With dead ends: 963 [2023-11-29 02:54:24,430 INFO L226 Difference]: Without dead ends: 955 [2023-11-29 02:54:24,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=608, Invalid=2044, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 02:54:24,431 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 276 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:24,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 715 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:54:24,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2023-11-29 02:54:24,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 905. [2023-11-29 02:54:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 775 states have (on average 1.1961290322580644) internal successors, (927), 788 states have internal predecessors, (927), 99 states have call successors, (99), 17 states have call predecessors, (99), 17 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 02:54:24,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1125 transitions. [2023-11-29 02:54:24,502 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1125 transitions. Word has length 130 [2023-11-29 02:54:24,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:24,503 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1125 transitions. [2023-11-29 02:54:24,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-29 02:54:24,503 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1125 transitions. [2023-11-29 02:54:24,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 02:54:24,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:24,504 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 02:54:24,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 02:54:24,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:24,704 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:24,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:24,705 INFO L85 PathProgramCache]: Analyzing trace with hash -687537624, now seen corresponding path program 1 times [2023-11-29 02:54:24,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:24,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677855239] [2023-11-29 02:54:24,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:24,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:24,712 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:24,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926939978] [2023-11-29 02:54:24,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:24,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:24,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:24,713 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:24,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 02:54:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:24,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:54:24,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:24,988 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 02:54:24,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 02:54:28,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:28,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677855239] [2023-11-29 02:54:28,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:28,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926939978] [2023-11-29 02:54:28,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926939978] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:28,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:28,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 13 [2023-11-29 02:54:28,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806927736] [2023-11-29 02:54:28,414 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:28,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:54:28,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:28,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:54:28,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:54:28,415 INFO L87 Difference]: Start difference. First operand 905 states and 1125 transitions. Second operand has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 02:54:28,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:28,707 INFO L93 Difference]: Finished difference Result 1161 states and 1455 transitions. [2023-11-29 02:54:28,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:54:28,707 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 134 [2023-11-29 02:54:28,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:28,714 INFO L225 Difference]: With dead ends: 1161 [2023-11-29 02:54:28,714 INFO L226 Difference]: Without dead ends: 1160 [2023-11-29 02:54:28,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:54:28,715 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 143 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:28,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 298 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:54:28,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2023-11-29 02:54:28,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 904. [2023-11-29 02:54:28,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 775 states have (on average 1.1883870967741936) internal successors, (921), 787 states have internal predecessors, (921), 99 states have call successors, (99), 17 states have call predecessors, (99), 17 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 02:54:28,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1119 transitions. [2023-11-29 02:54:28,837 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1119 transitions. Word has length 134 [2023-11-29 02:54:28,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:28,837 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1119 transitions. [2023-11-29 02:54:28,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 02:54:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1119 transitions. [2023-11-29 02:54:28,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 02:54:28,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:28,838 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1] [2023-11-29 02:54:28,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 02:54:29,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:29,039 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:29,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:29,039 INFO L85 PathProgramCache]: Analyzing trace with hash 161170256, now seen corresponding path program 1 times [2023-11-29 02:54:29,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:29,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486579495] [2023-11-29 02:54:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:29,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:29,047 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:29,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016696056] [2023-11-29 02:54:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:29,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:29,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:29,049 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:29,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 02:54:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:29,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:54:29,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 02:54:29,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 02:54:31,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:31,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486579495] [2023-11-29 02:54:31,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:31,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016696056] [2023-11-29 02:54:31,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016696056] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:31,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:54:31,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 02:54:31,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995337740] [2023-11-29 02:54:31,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:31,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:54:31,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:31,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:54:31,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:54:31,206 INFO L87 Difference]: Start difference. First operand 904 states and 1119 transitions. Second operand has 14 states, 13 states have (on average 11.0) internal successors, (143), 14 states have internal predecessors, (143), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 02:54:33,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:33,038 INFO L93 Difference]: Finished difference Result 1574 states and 1938 transitions. [2023-11-29 02:54:33,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:54:33,039 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.0) internal successors, (143), 14 states have internal predecessors, (143), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 135 [2023-11-29 02:54:33,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:33,044 INFO L225 Difference]: With dead ends: 1574 [2023-11-29 02:54:33,044 INFO L226 Difference]: Without dead ends: 1315 [2023-11-29 02:54:33,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=252, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:54:33,045 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 533 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:33,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 669 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 02:54:33,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2023-11-29 02:54:33,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1107. [2023-11-29 02:54:33,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 964 states have (on average 1.2188796680497926) internal successors, (1175), 976 states have internal predecessors, (1175), 113 states have call successors, (113), 17 states have call predecessors, (113), 17 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 02:54:33,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1401 transitions. [2023-11-29 02:54:33,145 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1401 transitions. Word has length 135 [2023-11-29 02:54:33,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:33,145 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 1401 transitions. [2023-11-29 02:54:33,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.0) internal successors, (143), 14 states have internal predecessors, (143), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 02:54:33,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1401 transitions. [2023-11-29 02:54:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 02:54:33,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:33,147 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 02:54:33,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 02:54:33,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:33,347 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 02:54:33,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:33,348 INFO L85 PathProgramCache]: Analyzing trace with hash 947235778, now seen corresponding path program 3 times [2023-11-29 02:54:33,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:33,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980562474] [2023-11-29 02:54:33,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:33,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:33,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:33,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641618723] [2023-11-29 02:54:33,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:54:33,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:33,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:33,356 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:33,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 02:54:33,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 02:54:33,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:33,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 02:54:33,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 73 proven. 8 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 02:54:34,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:55:15,486 WARN L293 SmtUtils]: Spent 25.57s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:56:13,518 WARN L293 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:56:34,351 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:56:54,065 WARN L293 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:57:25,866 WARN L293 SmtUtils]: Spent 7.65s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:57:46,333 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:58:04,022 WARN L293 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:58:24,747 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:58:45,675 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:58:53,687 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:59:14,165 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:59:36,173 WARN L293 SmtUtils]: Spent 5.46s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:59:56,656 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:00:22,017 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:00:42,332 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:01:20,538 WARN L293 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:01:54,890 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 39 proven. 42 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 03:01:54,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:01:54,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980562474] [2023-11-29 03:01:54,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:01:54,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641618723] [2023-11-29 03:01:54,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641618723] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:01:54,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:01:54,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2023-11-29 03:01:54,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378266516] [2023-11-29 03:01:54,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:01:54,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 03:01:54,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:01:54,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 03:01:54,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:01:54,893 INFO L87 Difference]: Start difference. First operand 1107 states and 1401 transitions. Second operand has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 03:02:04,051 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 50 DAG size of output: 45 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:02:05,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:05,368 INFO L93 Difference]: Finished difference Result 1391 states and 1729 transitions. [2023-11-29 03:02:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 03:02:05,369 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) Word has length 139 [2023-11-29 03:02:05,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:05,378 INFO L225 Difference]: With dead ends: 1391 [2023-11-29 03:02:05,378 INFO L226 Difference]: Without dead ends: 1390 [2023-11-29 03:02:05,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 03:02:05,380 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 347 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:05,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 312 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 03:02:05,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2023-11-29 03:02:05,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1243. [2023-11-29 03:02:05,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1092 states have (on average 1.206959706959707) internal successors, (1318), 1104 states have internal predecessors, (1318), 121 states have call successors, (121), 17 states have call predecessors, (121), 17 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2023-11-29 03:02:05,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1560 transitions. [2023-11-29 03:02:05,587 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1560 transitions. Word has length 139 [2023-11-29 03:02:05,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:05,587 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1560 transitions. [2023-11-29 03:02:05,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 03:02:05,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1560 transitions. [2023-11-29 03:02:05,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 03:02:05,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:05,590 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 03:02:05,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 03:02:05,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 03:02:05,790 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:05,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:05,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1599978083, now seen corresponding path program 3 times [2023-11-29 03:02:05,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:05,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897437822] [2023-11-29 03:02:05,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:05,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:05,802 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:05,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1361043560] [2023-11-29 03:02:05,803 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:02:05,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:05,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:05,804 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:05,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 03:02:05,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-29 03:02:05,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:02:05,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:02:05,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2023-11-29 03:02:05,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:02:05,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:05,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897437822] [2023-11-29 03:02:05,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:05,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361043560] [2023-11-29 03:02:05,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361043560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:05,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:05,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:02:05,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136805511] [2023-11-29 03:02:05,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:05,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:02:05,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:05,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:02:05,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:02:05,999 INFO L87 Difference]: Start difference. First operand 1243 states and 1560 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:02:06,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:06,351 INFO L93 Difference]: Finished difference Result 1250 states and 1566 transitions. [2023-11-29 03:02:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:02:06,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 140 [2023-11-29 03:02:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:06,358 INFO L225 Difference]: With dead ends: 1250 [2023-11-29 03:02:06,358 INFO L226 Difference]: Without dead ends: 1249 [2023-11-29 03:02:06,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:02:06,359 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 80 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:06,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 94 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:02:06,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-11-29 03:02:06,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1242. [2023-11-29 03:02:06,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1092 states have (on average 1.1913919413919414) internal successors, (1301), 1103 states have internal predecessors, (1301), 121 states have call successors, (121), 17 states have call predecessors, (121), 17 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2023-11-29 03:02:06,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1543 transitions. [2023-11-29 03:02:06,505 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1543 transitions. Word has length 140 [2023-11-29 03:02:06,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:06,506 INFO L495 AbstractCegarLoop]: Abstraction has 1242 states and 1543 transitions. [2023-11-29 03:02:06,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:02:06,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1543 transitions. [2023-11-29 03:02:06,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 03:02:06,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:06,507 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 03:02:06,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 03:02:06,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 03:02:06,708 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:06,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:06,709 INFO L85 PathProgramCache]: Analyzing trace with hash 734250880, now seen corresponding path program 1 times [2023-11-29 03:02:06,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:06,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970039648] [2023-11-29 03:02:06,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:06,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:06,718 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:06,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1338163665] [2023-11-29 03:02:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:06,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:06,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:06,720 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:06,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 03:02:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:06,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 03:02:06,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:07,419 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 03:02:07,419 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:07,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:07,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970039648] [2023-11-29 03:02:07,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:07,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338163665] [2023-11-29 03:02:07,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338163665] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:02:07,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:02:07,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:02:07,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128236151] [2023-11-29 03:02:07,552 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:07,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:02:07,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:07,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:02:07,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:02:07,553 INFO L87 Difference]: Start difference. First operand 1242 states and 1543 transitions. Second operand has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 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 03:02:08,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:08,115 INFO L93 Difference]: Finished difference Result 1282 states and 1570 transitions. [2023-11-29 03:02:08,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:02:08,115 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 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 153 [2023-11-29 03:02:08,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:08,120 INFO L225 Difference]: With dead ends: 1282 [2023-11-29 03:02:08,121 INFO L226 Difference]: Without dead ends: 1007 [2023-11-29 03:02:08,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:02:08,121 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 70 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:08,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 390 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:02:08,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2023-11-29 03:02:08,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 999. [2023-11-29 03:02:08,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 869 states have (on average 1.1829689298043728) internal successors, (1028), 880 states have internal predecessors, (1028), 101 states have call successors, (101), 17 states have call predecessors, (101), 17 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2023-11-29 03:02:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1230 transitions. [2023-11-29 03:02:08,231 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1230 transitions. Word has length 153 [2023-11-29 03:02:08,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:08,231 INFO L495 AbstractCegarLoop]: Abstraction has 999 states and 1230 transitions. [2023-11-29 03:02:08,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 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 03:02:08,231 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1230 transitions. [2023-11-29 03:02:08,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 03:02:08,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:08,233 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 03:02:08,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 03:02:08,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 03:02:08,433 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:08,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1286940930, now seen corresponding path program 1 times [2023-11-29 03:02:08,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:08,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804320886] [2023-11-29 03:02:08,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:08,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:08,442 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:08,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455881849] [2023-11-29 03:02:08,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:08,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:08,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:08,443 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:08,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 03:02:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:08,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 03:02:08,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:08,971 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 03:02:08,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:15,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:15,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804320886] [2023-11-29 03:02:15,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:15,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455881849] [2023-11-29 03:02:15,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455881849] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:02:15,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:02:15,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:02:15,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629902011] [2023-11-29 03:02:15,330 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:15,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:02:15,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:15,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:02:15,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:02:15,332 INFO L87 Difference]: Start difference. First operand 999 states and 1230 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 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 03:02:15,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:15,853 INFO L93 Difference]: Finished difference Result 1098 states and 1344 transitions. [2023-11-29 03:02:15,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:02:15,854 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 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 154 [2023-11-29 03:02:15,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:15,859 INFO L225 Difference]: With dead ends: 1098 [2023-11-29 03:02:15,859 INFO L226 Difference]: Without dead ends: 809 [2023-11-29 03:02:15,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:02:15,861 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 18 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:15,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 378 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:02:15,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2023-11-29 03:02:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 806. [2023-11-29 03:02:15,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 692 states have (on average 1.170520231213873) internal successors, (810), 703 states have internal predecessors, (810), 85 states have call successors, (85), 17 states have call predecessors, (85), 17 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-29 03:02:15,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 980 transitions. [2023-11-29 03:02:15,982 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 980 transitions. Word has length 154 [2023-11-29 03:02:15,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:15,983 INFO L495 AbstractCegarLoop]: Abstraction has 806 states and 980 transitions. [2023-11-29 03:02:15,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 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 03:02:15,983 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 980 transitions. [2023-11-29 03:02:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 03:02:15,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:15,985 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 03:02:15,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 03:02:16,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 03:02:16,185 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:16,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:16,185 INFO L85 PathProgramCache]: Analyzing trace with hash -200343292, now seen corresponding path program 1 times [2023-11-29 03:02:16,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:16,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595568361] [2023-11-29 03:02:16,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:16,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:16,193 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:16,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [35096989] [2023-11-29 03:02:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:16,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:16,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:16,194 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:16,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 03:02:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:16,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:02:16,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:16,538 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 03:02:16,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:16,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:16,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595568361] [2023-11-29 03:02:16,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:16,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35096989] [2023-11-29 03:02:16,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35096989] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:02:16,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:02:16,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:02:16,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827764689] [2023-11-29 03:02:16,627 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:16,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:02:16,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:16,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:02:16,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:02:16,628 INFO L87 Difference]: Start difference. First operand 806 states and 980 transitions. Second operand has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 03:02:17,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:17,126 INFO L93 Difference]: Finished difference Result 866 states and 1048 transitions. [2023-11-29 03:02:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:02:17,126 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 156 [2023-11-29 03:02:17,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:17,131 INFO L225 Difference]: With dead ends: 866 [2023-11-29 03:02:17,131 INFO L226 Difference]: Without dead ends: 843 [2023-11-29 03:02:17,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:02:17,132 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 78 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:17,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 607 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:02:17,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-11-29 03:02:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 833. [2023-11-29 03:02:17,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 717 states have (on average 1.1757322175732217) internal successors, (843), 728 states have internal predecessors, (843), 87 states have call successors, (87), 17 states have call predecessors, (87), 17 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 03:02:17,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1017 transitions. [2023-11-29 03:02:17,243 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1017 transitions. Word has length 156 [2023-11-29 03:02:17,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:17,243 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1017 transitions. [2023-11-29 03:02:17,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 03:02:17,244 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1017 transitions. [2023-11-29 03:02:17,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 03:02:17,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:17,245 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 03:02:17,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 03:02:17,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 03:02:17,446 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:17,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:17,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2003738234, now seen corresponding path program 3 times [2023-11-29 03:02:17,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:17,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54712389] [2023-11-29 03:02:17,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:17,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:17,453 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:17,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869263042] [2023-11-29 03:02:17,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:02:17,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:17,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:17,455 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:17,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 03:02:17,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 03:02:17,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:02:17,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:02:17,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 82 proven. 33 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2023-11-29 03:02:17,720 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:22,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:22,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54712389] [2023-11-29 03:02:22,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:22,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869263042] [2023-11-29 03:02:22,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869263042] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:02:22,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:02:22,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 03:02:22,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056181765] [2023-11-29 03:02:22,731 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:22,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:02:22,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:22,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:02:22,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:02:22,732 INFO L87 Difference]: Start difference. First operand 833 states and 1017 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 03:02:23,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:23,335 INFO L93 Difference]: Finished difference Result 903 states and 1090 transitions. [2023-11-29 03:02:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:02:23,335 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 157 [2023-11-29 03:02:23,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:23,338 INFO L225 Difference]: With dead ends: 903 [2023-11-29 03:02:23,338 INFO L226 Difference]: Without dead ends: 901 [2023-11-29 03:02:23,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:02:23,339 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 193 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:23,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 150 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:02:23,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2023-11-29 03:02:23,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 834. [2023-11-29 03:02:23,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 718 states have (on average 1.1740947075208914) internal successors, (843), 729 states have internal predecessors, (843), 87 states have call successors, (87), 17 states have call predecessors, (87), 17 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 03:02:23,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1017 transitions. [2023-11-29 03:02:23,477 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1017 transitions. Word has length 157 [2023-11-29 03:02:23,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:23,477 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1017 transitions. [2023-11-29 03:02:23,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 03:02:23,477 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1017 transitions. [2023-11-29 03:02:23,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 03:02:23,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:23,479 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-29 03:02:23,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 03:02:23,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 03:02:23,679 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:23,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:23,680 INFO L85 PathProgramCache]: Analyzing trace with hash 300960805, now seen corresponding path program 2 times [2023-11-29 03:02:23,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:23,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46030167] [2023-11-29 03:02:23,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:23,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:23,692 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:23,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1302495756] [2023-11-29 03:02:23,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:02:23,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:23,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:23,694 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:23,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 03:02:23,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:02:23,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:02:23,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:02:23,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 03:02:24,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 03:02:24,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:24,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46030167] [2023-11-29 03:02:24,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:24,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302495756] [2023-11-29 03:02:24,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302495756] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:24,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:24,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 24 [2023-11-29 03:02:24,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209306312] [2023-11-29 03:02:24,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:24,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 03:02:24,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:24,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 03:02:24,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:02:24,380 INFO L87 Difference]: Start difference. First operand 834 states and 1017 transitions. Second operand has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 9 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 9 states have call predecessors, (34), 9 states have call successors, (34) [2023-11-29 03:02:25,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:25,159 INFO L93 Difference]: Finished difference Result 1310 states and 1578 transitions. [2023-11-29 03:02:25,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 03:02:25,160 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 9 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 9 states have call predecessors, (34), 9 states have call successors, (34) Word has length 162 [2023-11-29 03:02:25,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:25,167 INFO L225 Difference]: With dead ends: 1310 [2023-11-29 03:02:25,167 INFO L226 Difference]: Without dead ends: 1062 [2023-11-29 03:02:25,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 294 SyntacticMatches, 6 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=574, Invalid=1876, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 03:02:25,170 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 157 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:25,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 627 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:02:25,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2023-11-29 03:02:25,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 997. [2023-11-29 03:02:25,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 863 states have (on average 1.152954808806489) internal successors, (995), 875 states have internal predecessors, (995), 101 states have call successors, (101), 21 states have call predecessors, (101), 21 states have return successors, (101), 100 states have call predecessors, (101), 101 states have call successors, (101) [2023-11-29 03:02:25,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1197 transitions. [2023-11-29 03:02:25,347 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1197 transitions. Word has length 162 [2023-11-29 03:02:25,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:25,347 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1197 transitions. [2023-11-29 03:02:25,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 9 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 9 states have call predecessors, (34), 9 states have call successors, (34) [2023-11-29 03:02:25,347 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1197 transitions. [2023-11-29 03:02:25,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 03:02:25,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:25,348 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 03:02:25,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 03:02:25,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 03:02:25,549 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:25,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:25,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1505941158, now seen corresponding path program 1 times [2023-11-29 03:02:25,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:25,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142136139] [2023-11-29 03:02:25,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:25,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:25,557 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:25,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441699943] [2023-11-29 03:02:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:25,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:25,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:25,559 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:25,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 03:02:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:25,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 03:02:25,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 03:02:26,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:31,944 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 03:02:31,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:31,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142136139] [2023-11-29 03:02:31,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:31,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441699943] [2023-11-29 03:02:31,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441699943] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:31,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:31,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2023-11-29 03:02:31,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880778659] [2023-11-29 03:02:31,945 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:31,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 03:02:31,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:31,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 03:02:31,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=332, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:02:31,946 INFO L87 Difference]: Start difference. First operand 997 states and 1197 transitions. Second operand has 23 states, 22 states have (on average 8.136363636363637) internal successors, (179), 23 states have internal predecessors, (179), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2023-11-29 03:02:35,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:35,999 INFO L93 Difference]: Finished difference Result 1507 states and 1835 transitions. [2023-11-29 03:02:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 03:02:35,999 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 8.136363636363637) internal successors, (179), 23 states have internal predecessors, (179), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 163 [2023-11-29 03:02:36,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:36,009 INFO L225 Difference]: With dead ends: 1507 [2023-11-29 03:02:36,010 INFO L226 Difference]: Without dead ends: 1505 [2023-11-29 03:02:36,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=510, Invalid=822, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 03:02:36,010 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 629 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:36,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 718 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 03:02:36,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2023-11-29 03:02:36,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1245. [2023-11-29 03:02:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1095 states have (on average 1.1689497716894977) internal successors, (1280), 1107 states have internal predecessors, (1280), 117 states have call successors, (117), 21 states have call predecessors, (117), 21 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2023-11-29 03:02:36,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1514 transitions. [2023-11-29 03:02:36,169 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1514 transitions. Word has length 163 [2023-11-29 03:02:36,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:36,169 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 1514 transitions. [2023-11-29 03:02:36,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 8.136363636363637) internal successors, (179), 23 states have internal predecessors, (179), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2023-11-29 03:02:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1514 transitions. [2023-11-29 03:02:36,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 03:02:36,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:36,171 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-29 03:02:36,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 03:02:36,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:36,371 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:36,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:36,371 INFO L85 PathProgramCache]: Analyzing trace with hash 161660851, now seen corresponding path program 4 times [2023-11-29 03:02:36,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:36,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093094335] [2023-11-29 03:02:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:36,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:36,379 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:36,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1999018043] [2023-11-29 03:02:36,379 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:02:36,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:36,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:36,381 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:36,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 03:02:36,464 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:02:36,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:02:36,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:02:36,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 82 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 03:02:36,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:36,729 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 82 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 03:02:36,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:36,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093094335] [2023-11-29 03:02:36,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:36,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999018043] [2023-11-29 03:02:36,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999018043] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:36,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:36,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 03:02:36,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848175481] [2023-11-29 03:02:36,730 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:36,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:02:36,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:36,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:02:36,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:02:36,732 INFO L87 Difference]: Start difference. First operand 1245 states and 1514 transitions. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 5 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-11-29 03:02:36,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:36,994 INFO L93 Difference]: Finished difference Result 1265 states and 1528 transitions. [2023-11-29 03:02:36,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:02:36,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 5 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 173 [2023-11-29 03:02:36,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:37,001 INFO L225 Difference]: With dead ends: 1265 [2023-11-29 03:02:37,001 INFO L226 Difference]: Without dead ends: 1012 [2023-11-29 03:02:37,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:02:37,003 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 9 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:37,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 396 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:02:37,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2023-11-29 03:02:37,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1007. [2023-11-29 03:02:37,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 880 states have (on average 1.1761363636363635) internal successors, (1035), 892 states have internal predecessors, (1035), 99 states have call successors, (99), 16 states have call predecessors, (99), 16 states have return successors, (99), 98 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 03:02:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1233 transitions. [2023-11-29 03:02:37,176 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1233 transitions. Word has length 173 [2023-11-29 03:02:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:37,177 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1233 transitions. [2023-11-29 03:02:37,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 5 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-11-29 03:02:37,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1233 transitions. [2023-11-29 03:02:37,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 03:02:37,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:37,179 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:37,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 03:02:37,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:37,379 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:37,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:37,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1934634012, now seen corresponding path program 1 times [2023-11-29 03:02:37,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:37,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120081100] [2023-11-29 03:02:37,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:37,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:37,390 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:37,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781760508] [2023-11-29 03:02:37,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:37,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:37,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:37,391 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:37,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 03:02:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:37,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:02:37,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 72 proven. 46 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 03:02:37,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:38,396 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 38 proven. 46 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-11-29 03:02:38,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:38,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120081100] [2023-11-29 03:02:38,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:38,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781760508] [2023-11-29 03:02:38,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781760508] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:38,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:38,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 12 [2023-11-29 03:02:38,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804800988] [2023-11-29 03:02:38,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:38,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:02:38,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:38,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:02:38,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:02:38,399 INFO L87 Difference]: Start difference. First operand 1007 states and 1233 transitions. Second operand has 13 states, 12 states have (on average 13.666666666666666) internal successors, (164), 13 states have internal predecessors, (164), 9 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2023-11-29 03:02:39,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:39,337 INFO L93 Difference]: Finished difference Result 1552 states and 1938 transitions. [2023-11-29 03:02:39,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:02:39,337 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.666666666666666) internal successors, (164), 13 states have internal predecessors, (164), 9 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) Word has length 179 [2023-11-29 03:02:39,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:39,341 INFO L225 Difference]: With dead ends: 1552 [2023-11-29 03:02:39,342 INFO L226 Difference]: Without dead ends: 1093 [2023-11-29 03:02:39,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 349 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=457, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:02:39,343 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 416 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:39,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 452 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:02:39,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2023-11-29 03:02:39,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 851. [2023-11-29 03:02:39,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 741 states have (on average 1.1619433198380567) internal successors, (861), 751 states have internal predecessors, (861), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2023-11-29 03:02:39,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1027 transitions. [2023-11-29 03:02:39,510 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1027 transitions. Word has length 179 [2023-11-29 03:02:39,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:39,510 INFO L495 AbstractCegarLoop]: Abstraction has 851 states and 1027 transitions. [2023-11-29 03:02:39,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.666666666666666) internal successors, (164), 13 states have internal predecessors, (164), 9 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2023-11-29 03:02:39,510 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1027 transitions. [2023-11-29 03:02:39,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-29 03:02:39,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:39,511 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:39,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 03:02:39,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-11-29 03:02:39,712 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:39,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:39,712 INFO L85 PathProgramCache]: Analyzing trace with hash 155886755, now seen corresponding path program 2 times [2023-11-29 03:02:39,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:39,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624223957] [2023-11-29 03:02:39,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:39,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:39,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:39,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578006317] [2023-11-29 03:02:39,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:02:39,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:39,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:39,722 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:39,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 03:02:39,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:02:39,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:02:39,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:02:39,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 03:02:40,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:40,247 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 72 proven. 44 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 03:02:40,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:40,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624223957] [2023-11-29 03:02:40,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:40,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578006317] [2023-11-29 03:02:40,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578006317] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:40,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:40,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 13 [2023-11-29 03:02:40,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605423366] [2023-11-29 03:02:40,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:40,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:02:40,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:40,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:02:40,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:02:40,249 INFO L87 Difference]: Start difference. First operand 851 states and 1027 transitions. Second operand has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 03:02:40,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:40,760 INFO L93 Difference]: Finished difference Result 966 states and 1159 transitions. [2023-11-29 03:02:40,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:02:40,761 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 180 [2023-11-29 03:02:40,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:40,763 INFO L225 Difference]: With dead ends: 966 [2023-11-29 03:02:40,763 INFO L226 Difference]: Without dead ends: 960 [2023-11-29 03:02:40,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 341 SyntacticMatches, 6 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:02:40,764 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 100 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:40,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 495 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:02:40,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2023-11-29 03:02:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 901. [2023-11-29 03:02:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 779 states have (on average 1.1566110397946086) internal successors, (901), 789 states have internal predecessors, (901), 95 states have call successors, (95), 16 states have call predecessors, (95), 16 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2023-11-29 03:02:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1091 transitions. [2023-11-29 03:02:40,930 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1091 transitions. Word has length 180 [2023-11-29 03:02:40,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:40,931 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1091 transitions. [2023-11-29 03:02:40,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 03:02:40,931 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1091 transitions. [2023-11-29 03:02:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 03:02:40,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:40,932 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 03:02:40,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 03:02:41,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 03:02:41,133 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:41,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:41,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1511388205, now seen corresponding path program 1 times [2023-11-29 03:02:41,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:41,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451749386] [2023-11-29 03:02:41,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:41,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:41,147 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:41,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891696786] [2023-11-29 03:02:41,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:41,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:41,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:41,149 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:41,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 03:02:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:41,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 03:02:41,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 03:02:41,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:48,006 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 03:02:48,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:48,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451749386] [2023-11-29 03:02:48,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:48,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891696786] [2023-11-29 03:02:48,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891696786] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:48,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:48,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2023-11-29 03:02:48,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896081158] [2023-11-29 03:02:48,007 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:48,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 03:02:48,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:48,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 03:02:48,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:02:48,009 INFO L87 Difference]: Start difference. First operand 901 states and 1091 transitions. Second operand has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-11-29 03:02:51,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:51,839 INFO L93 Difference]: Finished difference Result 1540 states and 1834 transitions. [2023-11-29 03:02:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 03:02:51,840 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 187 [2023-11-29 03:02:51,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:51,842 INFO L225 Difference]: With dead ends: 1540 [2023-11-29 03:02:51,843 INFO L226 Difference]: Without dead ends: 1539 [2023-11-29 03:02:51,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=325, Invalid=545, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:02:51,843 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 831 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:51,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 891 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 03:02:51,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2023-11-29 03:02:52,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1303. [2023-11-29 03:02:52,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1145 states have (on average 1.1510917030567687) internal successors, (1318), 1155 states have internal predecessors, (1318), 131 states have call successors, (131), 16 states have call predecessors, (131), 16 states have return successors, (131), 131 states have call predecessors, (131), 131 states have call successors, (131) [2023-11-29 03:02:52,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1580 transitions. [2023-11-29 03:02:52,122 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1580 transitions. Word has length 187 [2023-11-29 03:02:52,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:52,122 INFO L495 AbstractCegarLoop]: Abstraction has 1303 states and 1580 transitions. [2023-11-29 03:02:52,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-11-29 03:02:52,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1580 transitions. [2023-11-29 03:02:52,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-29 03:02:52,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:52,124 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1] [2023-11-29 03:02:52,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 03:02:52,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:52,325 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:52,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:52,325 INFO L85 PathProgramCache]: Analyzing trace with hash 28653170, now seen corresponding path program 5 times [2023-11-29 03:02:52,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:52,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678345834] [2023-11-29 03:02:52,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:52,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:52,337 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:52,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482895211] [2023-11-29 03:02:52,337 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:02:52,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:52,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:52,338 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:52,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 03:02:52,664 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2023-11-29 03:02:52,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:02:52,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 03:02:52,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:53,389 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 78 proven. 180 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2023-11-29 03:02:53,389 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:53,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:53,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678345834] [2023-11-29 03:02:53,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:53,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482895211] [2023-11-29 03:02:53,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482895211] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:02:53,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:02:53,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 03:02:53,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944183478] [2023-11-29 03:02:53,830 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:53,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 03:02:53,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:53,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 03:02:53,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:02:53,831 INFO L87 Difference]: Start difference. First operand 1303 states and 1580 transitions. Second operand has 18 states, 17 states have (on average 6.764705882352941) internal successors, (115), 18 states have internal predecessors, (115), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2023-11-29 03:02:55,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:55,053 INFO L93 Difference]: Finished difference Result 1418 states and 1718 transitions. [2023-11-29 03:02:55,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 03:02:55,053 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.764705882352941) internal successors, (115), 18 states have internal predecessors, (115), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 199 [2023-11-29 03:02:55,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:55,056 INFO L225 Difference]: With dead ends: 1418 [2023-11-29 03:02:55,056 INFO L226 Difference]: Without dead ends: 1411 [2023-11-29 03:02:55,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:02:55,057 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 133 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:55,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 966 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:02:55,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2023-11-29 03:02:55,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1330. [2023-11-29 03:02:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1166 states have (on average 1.146655231560892) internal successors, (1337), 1176 states have internal predecessors, (1337), 137 states have call successors, (137), 16 states have call predecessors, (137), 16 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 03:02:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1611 transitions. [2023-11-29 03:02:55,338 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1611 transitions. Word has length 199 [2023-11-29 03:02:55,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:55,338 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 1611 transitions. [2023-11-29 03:02:55,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.764705882352941) internal successors, (115), 18 states have internal predecessors, (115), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2023-11-29 03:02:55,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1611 transitions. [2023-11-29 03:02:55,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 03:02:55,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:55,341 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:55,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 03:02:55,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:55,541 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:55,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:55,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1587921210, now seen corresponding path program 1 times [2023-11-29 03:02:55,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:55,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839870449] [2023-11-29 03:02:55,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:55,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:55,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:55,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372755376] [2023-11-29 03:02:55,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:55,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:55,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:55,553 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:55,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 03:02:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:55,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:02:55,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:56,022 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 03:02:56,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:56,504 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 03:02:56,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:56,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839870449] [2023-11-29 03:02:56,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:56,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372755376] [2023-11-29 03:02:56,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372755376] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:56,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:56,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 37 [2023-11-29 03:02:56,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765630101] [2023-11-29 03:02:56,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:56,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 03:02:56,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:56,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 03:02:56,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 03:02:56,508 INFO L87 Difference]: Start difference. First operand 1330 states and 1611 transitions. Second operand has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 38 states have internal predecessors, (251), 16 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 16 states have call predecessors, (40), 16 states have call successors, (40) [2023-11-29 03:02:58,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:58,094 INFO L93 Difference]: Finished difference Result 2736 states and 3391 transitions. [2023-11-29 03:02:58,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-11-29 03:02:58,094 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 38 states have internal predecessors, (251), 16 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 16 states have call predecessors, (40), 16 states have call successors, (40) Word has length 212 [2023-11-29 03:02:58,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:58,099 INFO L225 Difference]: With dead ends: 2736 [2023-11-29 03:02:58,099 INFO L226 Difference]: Without dead ends: 2728 [2023-11-29 03:02:58,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1310, Invalid=4542, Unknown=0, NotChecked=0, Total=5852 [2023-11-29 03:02:58,101 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 475 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:58,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 695 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:02:58,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2023-11-29 03:02:58,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2674. [2023-11-29 03:02:58,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2386 states have (on average 1.1596814752724225) internal successors, (2767), 2396 states have internal predecessors, (2767), 251 states have call successors, (251), 26 states have call predecessors, (251), 26 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2023-11-29 03:02:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 3269 transitions. [2023-11-29 03:02:58,695 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 3269 transitions. Word has length 212 [2023-11-29 03:02:58,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:58,696 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 3269 transitions. [2023-11-29 03:02:58,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 38 states have internal predecessors, (251), 16 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 16 states have call predecessors, (40), 16 states have call successors, (40) [2023-11-29 03:02:58,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 3269 transitions. [2023-11-29 03:02:58,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-29 03:02:58,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:58,699 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1] [2023-11-29 03:02:58,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 03:02:58,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 03:02:58,899 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:02:58,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:58,900 INFO L85 PathProgramCache]: Analyzing trace with hash 640471877, now seen corresponding path program 1 times [2023-11-29 03:02:58,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:58,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049016886] [2023-11-29 03:02:58,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:58,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:58,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:58,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771720256] [2023-11-29 03:02:58,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:58,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:58,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:58,916 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:58,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 03:02:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:59,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:02:59,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 0 proven. 1432 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 03:02:59,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 0 proven. 424 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-29 03:02:59,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:59,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049016886] [2023-11-29 03:02:59,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:59,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771720256] [2023-11-29 03:02:59,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771720256] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:59,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:59,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 22 [2023-11-29 03:02:59,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682565406] [2023-11-29 03:02:59,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:59,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 03:02:59,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:59,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 03:02:59,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:02:59,768 INFO L87 Difference]: Start difference. First operand 2674 states and 3269 transitions. Second operand has 22 states, 22 states have (on average 6.2272727272727275) internal successors, (137), 22 states have internal predecessors, (137), 9 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 9 states have call predecessors, (48), 9 states have call successors, (48) [2023-11-29 03:03:00,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:03:00,698 INFO L93 Difference]: Finished difference Result 2823 states and 3455 transitions. [2023-11-29 03:03:00,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 03:03:00,699 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.2272727272727275) internal successors, (137), 22 states have internal predecessors, (137), 9 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 9 states have call predecessors, (48), 9 states have call successors, (48) Word has length 216 [2023-11-29 03:03:00,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:03:00,703 INFO L225 Difference]: With dead ends: 2823 [2023-11-29 03:03:00,704 INFO L226 Difference]: Without dead ends: 2621 [2023-11-29 03:03:00,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 394 SyntacticMatches, 16 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 03:03:00,705 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 105 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:03:00,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 375 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:03:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2023-11-29 03:03:01,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 2617. [2023-11-29 03:03:01,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2335 states have (on average 1.1593147751605997) internal successors, (2707), 2345 states have internal predecessors, (2707), 245 states have call successors, (245), 26 states have call predecessors, (245), 26 states have return successors, (245), 245 states have call predecessors, (245), 245 states have call successors, (245) [2023-11-29 03:03:01,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 3197 transitions. [2023-11-29 03:03:01,261 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 3197 transitions. Word has length 216 [2023-11-29 03:03:01,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:03:01,261 INFO L495 AbstractCegarLoop]: Abstraction has 2617 states and 3197 transitions. [2023-11-29 03:03:01,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.2272727272727275) internal successors, (137), 22 states have internal predecessors, (137), 9 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 9 states have call predecessors, (48), 9 states have call successors, (48) [2023-11-29 03:03:01,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 3197 transitions. [2023-11-29 03:03:01,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 03:03:01,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:03:01,263 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1] [2023-11-29 03:03:01,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 03:03:01,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:03:01,464 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:03:01,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:01,465 INFO L85 PathProgramCache]: Analyzing trace with hash -56598874, now seen corresponding path program 2 times [2023-11-29 03:03:01,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:01,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442157488] [2023-11-29 03:03:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:01,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:01,481 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:03:01,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1012378434] [2023-11-29 03:03:01,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:03:01,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:03:01,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:03:01,483 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:03:01,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 03:03:01,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:03:01,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:03:01,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-29 03:03:01,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:03:02,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 03:03:02,520 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:03:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 03:03:17,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:17,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442157488] [2023-11-29 03:03:17,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:03:17,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012378434] [2023-11-29 03:03:17,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012378434] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:03:17,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:03:17,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 35 [2023-11-29 03:03:17,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471636088] [2023-11-29 03:03:17,498 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:03:17,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 03:03:17,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:17,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 03:03:17,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=372, Invalid=888, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 03:03:17,500 INFO L87 Difference]: Start difference. First operand 2617 states and 3197 transitions. Second operand has 36 states, 35 states have (on average 6.485714285714286) internal successors, (227), 36 states have internal predecessors, (227), 16 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 16 states have call predecessors, (42), 16 states have call successors, (42) [2023-11-29 03:04:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:13,645 INFO L93 Difference]: Finished difference Result 3833 states and 4643 transitions. [2023-11-29 03:04:13,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-11-29 03:04:13,646 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.485714285714286) internal successors, (227), 36 states have internal predecessors, (227), 16 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 16 states have call predecessors, (42), 16 states have call successors, (42) Word has length 217 [2023-11-29 03:04:13,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:13,652 INFO L225 Difference]: With dead ends: 3833 [2023-11-29 03:04:13,652 INFO L226 Difference]: Without dead ends: 3832 [2023-11-29 03:04:13,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 394 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3874 ImplicationChecksByTransitivity, 45.0s TimeCoverageRelationStatistics Valid=3763, Invalid=9577, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 03:04:13,655 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 2601 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 3286 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 3834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 3286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:13,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 1430 Invalid, 3834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 3286 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-11-29 03:04:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2023-11-29 03:04:14,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 3000. [2023-11-29 03:04:14,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3000 states, 2684 states have (on average 1.1635618479880776) internal successors, (3123), 2694 states have internal predecessors, (3123), 279 states have call successors, (279), 26 states have call predecessors, (279), 26 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) [2023-11-29 03:04:14,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3000 states to 3000 states and 3681 transitions. [2023-11-29 03:04:14,438 INFO L78 Accepts]: Start accepts. Automaton has 3000 states and 3681 transitions. Word has length 217 [2023-11-29 03:04:14,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:14,438 INFO L495 AbstractCegarLoop]: Abstraction has 3000 states and 3681 transitions. [2023-11-29 03:04:14,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.485714285714286) internal successors, (227), 36 states have internal predecessors, (227), 16 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 16 states have call predecessors, (42), 16 states have call successors, (42) [2023-11-29 03:04:14,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3000 states and 3681 transitions. [2023-11-29 03:04:14,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 03:04:14,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:14,440 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2023-11-29 03:04:14,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 03:04:14,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:14,641 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:04:14,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:14,641 INFO L85 PathProgramCache]: Analyzing trace with hash -186534787, now seen corresponding path program 2 times [2023-11-29 03:04:14,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:14,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543193560] [2023-11-29 03:04:14,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:14,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:14,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:14,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21335961] [2023-11-29 03:04:14,651 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:04:14,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:14,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:14,652 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:14,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 03:04:14,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:04:14,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:04:14,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 03:04:14,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:15,541 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 03:04:15,541 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:04:25,874 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse5 (div |c_ULTIMATE.start_main_~d~0#1| 8)) (.cse0 (* 2 |c_ULTIMATE.start_main_~r~0#1|)) (.cse1 (* .cse4 2)) (.cse2 (* 2 |c_ULTIMATE.start_main_~d~0#1|)) (.cse3 (* (div |c_ULTIMATE.start_main_~d~0#1| 4) 3))) (and (or (< .cse0 (+ .cse1 4294967295 .cse2 .cse3)) (< |c_ULTIMATE.start_main_~d~0#1| 0)) (<= .cse0 (+ .cse1 .cse2 (* 3 (div (+ (- 1) .cse4) 2)) 4294967304)) (<= |c_ULTIMATE.start_main_~r~0#1| (+ (* 7 .cse5) 2147483654 |c_ULTIMATE.start_main_~d~0#1|)) (or (not (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0)) (and (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 (* .cse5 3) 2147483650 |c_ULTIMATE.start_main_~d~0#1|)) (<= .cse0 (+ .cse1 .cse2 .cse3 4294967299)) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ |c_ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_84|)) (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) .cse4))) (<= |c_ULTIMATE.start_main_~r~0#1| (+ |c_ULTIMATE.start_main_~d~0#1| 8 (* 7 (div (+ .cse4 1227133511) 4)))))) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ |c_ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_84|)) (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) (+ .cse4 1)))) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 2147483654 (* 3 (div (+ .cse4 (- 3)) 4)) |c_ULTIMATE.start_main_~d~0#1|))))) is different from false [2023-11-29 03:05:07,736 WARN L293 SmtUtils]: Spent 13.19s on a formula simplification. DAG size of input: 23 DAG size of output: 20 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 03:05:18,878 WARN L293 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 54 DAG size of output: 26 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 03:05:30,172 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse8 (div |c_ULTIMATE.start_main_~d~0#1| 4)) (.cse0 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse15 (* .cse0 2)) (.cse17 (* .cse8 2)) (.cse1 (div (+ (- 1) .cse0) 2)) (.cse16 (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3)) (.cse5 (* 2 |c_ULTIMATE.start_main_~r~0#1|))) (let ((.cse7 (+ (* (div (+ (- 4294967306) .cse5) 3) 2) 1)) (.cse4 (* .cse16 8)) (.cse3 (* (- 1) .cse0)) (.cse2 (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0)) (.cse9 (< |c_ULTIMATE.start_main_~r~0#1| 2147483648)) (.cse11 (* 2 .cse1)) (.cse13 (+ .cse8 1)) (.cse14 (* .cse0 (- 3))) (.cse12 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8)) (.cse10 (< .cse5 (+ (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3) .cse15 .cse17 4294967295))) (.cse6 (* .cse0 (- 2)))) (and (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse0 |v_ULTIMATE.start_main_~r~0#1_84| 1)) (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) (+ 2 .cse1)))) (or (< 0 (+ |c_ULTIMATE.start_main_~d~0#1| 1)) .cse2 (and (<= (+ (* (div (+ (- 1) .cse3) 2) 8) .cse4 6) .cse0) (<= |c_ULTIMATE.start_main_~r~0#1| 2147483647) (or (< (+ (* (div (+ (- 4294967311) .cse5) 15) 4) 2) .cse0) (< (+ (* (div (+ .cse6 (- 4294967309) .cse5) 7) 4) 2) .cse0)))) (<= .cse7 (* 5 .cse8)) (or (and (<= (+ 2 (* (div (+ .cse6 (- 4294967302) .cse5) 7) 4)) .cse0) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse0 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16)))) (<= .cse7 (* 5 .cse1)) (or .cse9 .cse10) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ 2 .cse11 |v_ULTIMATE.start_main_~r~0#1_84|)) (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) (+ .cse1 1)))) (<= (+ .cse12 1) .cse0) (<= (+ 7 .cse4 (* (div .cse3 2) 8)) .cse0) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) .cse13) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse0 |v_ULTIMATE.start_main_~r~0#1_84|)))) (<= (+ (* 8 (div (+ (- 4294967303) .cse14 .cse5) 6)) 6) .cse0)) (not .cse2)) (or .cse9 (< .cse5 (+ 4294967302 .cse15 .cse11 (* 3 (div (+ (- 1) .cse1) 2))))) (<= (* 2 .cse16) (+ .cse0 (* 2 (div (+ .cse0 (- 6)) 8)) 2)) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) .cse13) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse17 2 |v_ULTIMATE.start_main_~r~0#1_84|)))) (<= (+ 5 (* 8 (div (+ .cse14 (- 4294967306) .cse5) 6))) .cse0) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse0 (* 7 (div (+ .cse0 (- 7)) 8)) 2147483662)) (<= .cse12 .cse0) (or (< |c_ULTIMATE.start_main_~d~0#1| 0) .cse10) (<= (+ (* (div (+ .cse6 (- 4294967304) .cse5) 7) 4) 1) .cse0))))) is different from false [2023-11-29 03:06:02,841 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse10 (div |c_ULTIMATE.start_main_~d~0#1| 4)) (.cse1 (* 2 |c_ULTIMATE.start_main_~r~0#1|)) (.cse2 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse4 (div (+ (- 1) .cse2) 2)) (.cse3 (+ (* (div (+ (- 4294967306) .cse1) 3) 2) 1)) (.cse8 (+ .cse10 1)) (.cse9 (* .cse2 (- 3))) (.cse5 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8)) (.cse11 (* .cse10 2)) (.cse7 (* (- 1) .cse2)) (.cse6 (* (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3) 8)) (.cse0 (* .cse2 (- 2)))) (and (or (not (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0)) (and (<= (+ 2 (* (div (+ .cse0 (- 4294967302) .cse1) 7) 4)) .cse2) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse2 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16)))) (<= .cse3 (* 5 .cse4)) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ 2 (* 2 .cse4) |v_ULTIMATE.start_main_~r~0#1_84|)) (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) (+ .cse4 1)))) (<= (+ .cse5 1) .cse2) (<= (+ 7 .cse6 (* (div .cse7 2) 8)) .cse2) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) .cse8) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse2 |v_ULTIMATE.start_main_~r~0#1_84|)))) (<= (+ (* 8 (div (+ (- 4294967303) .cse9 .cse1) 6)) 6) .cse2))) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse2 |v_ULTIMATE.start_main_~r~0#1_84| 1)) (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) (+ 2 .cse4)))) (<= .cse3 (* 5 .cse10)) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) .cse8) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse11 2 |v_ULTIMATE.start_main_~r~0#1_84|)))) (<= (+ 5 (* 8 (div (+ .cse9 (- 4294967306) .cse1) 6))) .cse2) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse2 (* 7 (div (+ .cse2 (- 7)) 8)) 2147483662)) (<= .cse5 .cse2) (or (< |c_ULTIMATE.start_main_~d~0#1| 0) (< .cse1 (+ (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3) (* .cse2 2) .cse11 4294967295))) (or (< 0 (+ |c_ULTIMATE.start_main_~d~0#1| 1)) (< (+ (* (div (+ (- 1) .cse7) 2) 8) .cse6 5) .cse2)) (<= (+ (* (div (+ .cse0 (- 4294967304) .cse1) 7) 4) 1) .cse2)))) is different from false [2023-11-29 03:06:19,030 WARN L293 SmtUtils]: Spent 6.28s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:06:31,174 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse10 (div |c_ULTIMATE.start_main_~d~0#1| 4)) (.cse1 (* 2 |c_ULTIMATE.start_main_~r~0#1|)) (.cse2 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse4 (div (+ (- 1) .cse2) 2)) (.cse7 (* (- 1) .cse2)) (.cse6 (* (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3) 8)) (.cse3 (+ (* (div (+ (- 4294967306) .cse1) 3) 2) 1)) (.cse8 (+ .cse10 1)) (.cse9 (* .cse2 (- 3))) (.cse5 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8)) (.cse11 (* .cse10 2)) (.cse0 (* .cse2 (- 2)))) (and (or (not (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0)) (and (<= (+ 2 (* (div (+ .cse0 (- 4294967302) .cse1) 7) 4)) .cse2) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse2 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16)))) (<= .cse3 (* 5 .cse4)) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ 2 (* 2 .cse4) |v_ULTIMATE.start_main_~r~0#1_84|)) (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) (+ .cse4 1)))) (<= (+ .cse5 1) .cse2) (<= (+ 7 .cse6 (* (div .cse7 2) 8)) .cse2) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) .cse8) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse2 |v_ULTIMATE.start_main_~r~0#1_84|)))) (<= (+ (* 8 (div (+ (- 4294967303) .cse9 .cse1) 6)) 6) .cse2))) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse2 |v_ULTIMATE.start_main_~r~0#1_84| 1)) (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) (+ 2 .cse4)))) (<= (+ (* (div (+ (- 1) .cse7) 2) 8) .cse6 6) .cse2) (<= .cse3 (* 5 .cse10)) (forall ((|v_ULTIMATE.start_main_~r~0#1_84| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_84|) (- 4294967297)) 7) 2) .cse8) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse11 2 |v_ULTIMATE.start_main_~r~0#1_84|)))) (<= (+ 5 (* 8 (div (+ .cse9 (- 4294967306) .cse1) 6))) .cse2) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse2 (* 7 (div (+ .cse2 (- 7)) 8)) 2147483662)) (<= .cse5 .cse2) (or (< |c_ULTIMATE.start_main_~d~0#1| 0) (< .cse1 (+ (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3) (* .cse2 2) .cse11 4294967295))) (<= (+ (* (div (+ .cse0 (- 4294967304) .cse1) 7) 4) 1) .cse2)))) is different from false [2023-11-29 03:06:42,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:06:42,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543193560] [2023-11-29 03:06:42,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:06:42,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21335961] [2023-11-29 03:06:42,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21335961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:06:42,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:06:42,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 03:06:42,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425037627] [2023-11-29 03:06:42,970 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:06:42,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 03:06:42,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:06:42,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 03:06:42,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=404, Unknown=4, NotChecked=188, Total=756 [2023-11-29 03:06:42,971 INFO L87 Difference]: Start difference. First operand 3000 states and 3681 transitions. Second operand has 18 states, 17 states have (on average 7.176470588235294) internal successors, (122), 18 states have internal predecessors, (122), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 03:06:44,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:06:44,574 INFO L93 Difference]: Finished difference Result 3228 states and 3971 transitions. [2023-11-29 03:06:44,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:06:44,575 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.176470588235294) internal successors, (122), 18 states have internal predecessors, (122), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 219 [2023-11-29 03:06:44,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:06:44,580 INFO L225 Difference]: With dead ends: 3228 [2023-11-29 03:06:44,580 INFO L226 Difference]: Without dead ends: 3227 [2023-11-29 03:06:44,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=254, Invalid=628, Unknown=4, NotChecked=236, Total=1122 [2023-11-29 03:06:44,582 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 63 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:06:44,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 596 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:06:44,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2023-11-29 03:06:45,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 2850. [2023-11-29 03:06:45,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2552 states have (on average 1.158307210031348) internal successors, (2956), 2562 states have internal predecessors, (2956), 261 states have call successors, (261), 26 states have call predecessors, (261), 26 states have return successors, (261), 261 states have call predecessors, (261), 261 states have call successors, (261) [2023-11-29 03:06:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 3478 transitions. [2023-11-29 03:06:45,406 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 3478 transitions. Word has length 219 [2023-11-29 03:06:45,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:06:45,406 INFO L495 AbstractCegarLoop]: Abstraction has 2850 states and 3478 transitions. [2023-11-29 03:06:45,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.176470588235294) internal successors, (122), 18 states have internal predecessors, (122), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 03:06:45,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 3478 transitions. [2023-11-29 03:06:45,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-29 03:06:45,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:06:45,409 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1] [2023-11-29 03:06:45,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-29 03:06:45,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 03:06:45,609 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:06:45,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:06:45,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1216064625, now seen corresponding path program 6 times [2023-11-29 03:06:45,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:06:45,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572279503] [2023-11-29 03:06:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:06:45,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:06:45,620 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:06:45,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644380394] [2023-11-29 03:06:45,620 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 03:06:45,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:06:45,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:06:45,621 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:06:45,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7e6c76-0835-4cd4-b891-687286709b56/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 03:06:45,744 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-11-29 03:06:45,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:06:45,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 03:06:45,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:06:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 268 proven. 87 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-11-29 03:06:47,112 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:07:20,215 WARN L293 SmtUtils]: Spent 16.39s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:08:11,681 WARN L293 SmtUtils]: Spent 13.11s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)