./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound50.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_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/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_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/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_57b20730-cafd-4803-ae23-33f0067731ed/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 d97e16340b134520fbcd52e88b56205e8eec0d97e940a97449195072afa1eb85 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:51:48,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:51:48,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 02:51:48,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:51:48,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:51:48,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:51:48,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:51:48,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:51:48,952 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:51:48,953 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:51:48,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:51:48,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:51:48,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:51:48,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:51:48,956 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:51:48,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:51:48,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:51:48,957 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:51:48,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:51:48,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:51:48,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:51:48,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:51:48,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:51:48,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:51:48,961 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:51:48,962 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:51:48,962 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:51:48,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:51:48,963 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:51:48,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:51:48,964 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:51:48,964 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:51:48,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:51:48,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:51:48,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:51:48,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:51:48,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:51:48,966 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:51:48,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:51:48,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:51:48,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:51:48,967 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:51:48,967 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:51:48,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:51:48,967 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_57b20730-cafd-4803-ae23-33f0067731ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d97e16340b134520fbcd52e88b56205e8eec0d97e940a97449195072afa1eb85 [2023-11-29 02:51:49,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:51:49,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:51:49,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:51:49,249 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:51:49,250 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:51:49,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound50.c [2023-11-29 02:51:51,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:51:52,098 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:51:52,099 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound50.c [2023-11-29 02:51:52,105 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/data/f6ea951f9/3d2e9102e8c04cf48063a1081144eef1/FLAG3d9558402 [2023-11-29 02:51:52,116 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/data/f6ea951f9/3d2e9102e8c04cf48063a1081144eef1 [2023-11-29 02:51:52,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:51:52,120 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:51:52,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:51:52,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:51:52,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:51:52,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@430eeb69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52, skipping insertion in model container [2023-11-29 02:51:52,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,149 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:51:52,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:51:52,303 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:51:52,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:51:52,336 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:51:52,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52 WrapperNode [2023-11-29 02:51:52,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:51:52,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:51:52,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:51:52,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:51:52,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,373 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2023-11-29 02:51:52,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:51:52,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:51:52,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:51:52,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:51:52,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,385 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,397 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:51:52,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:51:52,411 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:51:52,411 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:51:52,411 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:51:52,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (1/1) ... [2023-11-29 02:51:52,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:51:52,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:52,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:51:52,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:51:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:51:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 02:51:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 02:51:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:51:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:51:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:51:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 02:51:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 02:51:52,532 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:51:52,534 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:51:52,776 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:51:52,802 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:51:52,803 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 02:51:52,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:51:52 BoogieIcfgContainer [2023-11-29 02:51:52,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:51:52,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:51:52,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:51:52,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:51:52,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:51:52" (1/3) ... [2023-11-29 02:51:52,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141e2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:51:52, skipping insertion in model container [2023-11-29 02:51:52,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:51:52" (2/3) ... [2023-11-29 02:51:52,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141e2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:51:52, skipping insertion in model container [2023-11-29 02:51:52,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:51:52" (3/3) ... [2023-11-29 02:51:52,810 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound50.c [2023-11-29 02:51:52,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:51:52,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-29 02:51:52,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:51:52,876 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;@2ed83169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:51:52,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-29 02:51:52,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:51:52,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 02:51:52,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:52,887 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:51:52,888 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:52,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:52,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1812025852, now seen corresponding path program 1 times [2023-11-29 02:51:52,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:52,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116761992] [2023-11-29 02:51:52,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:52,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:53,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:53,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116761992] [2023-11-29 02:51:53,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 02:51:53,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457479332] [2023-11-29 02:51:53,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:53,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:53,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:53,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:53,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:51:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:53,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:51:53,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:51:53,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:51:53,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457479332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:51:53,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:51:53,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:51:53,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106536958] [2023-11-29 02:51:53,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:51:53,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:51:53,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:53,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:51:53,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:51:53,149 INFO L87 Difference]: Start difference. First operand has 87 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 02:51:53,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:53,181 INFO L93 Difference]: Finished difference Result 172 states and 211 transitions. [2023-11-29 02:51:53,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:51:53,183 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-29 02:51:53,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:53,191 INFO L225 Difference]: With dead ends: 172 [2023-11-29 02:51:53,191 INFO L226 Difference]: Without dead ends: 84 [2023-11-29 02:51:53,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:51:53,197 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:53,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:51:53,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-29 02:51:53,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-29 02:51:53,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 72 states have internal predecessors, (74), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 02:51:53,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2023-11-29 02:51:53,241 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 20 [2023-11-29 02:51:53,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:53,241 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2023-11-29 02:51:53,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 02:51:53,242 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2023-11-29 02:51:53,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 02:51:53,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:53,243 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:51:53,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:51:53,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:53,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:53,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:53,445 INFO L85 PathProgramCache]: Analyzing trace with hash 982000830, now seen corresponding path program 1 times [2023-11-29 02:51:53,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:53,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813465787] [2023-11-29 02:51:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:53,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:53,460 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:53,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886451227] [2023-11-29 02:51:53,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:53,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:53,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:53,461 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:53,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:51:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:53,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:51:53,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:53,657 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:51:53,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:51:53,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:53,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813465787] [2023-11-29 02:51:53,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:53,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886451227] [2023-11-29 02:51:53,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886451227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:51:53,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:51:53,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:51:53,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616899312] [2023-11-29 02:51:53,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:51:53,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:51:53,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:53,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:51:53,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:51:53,662 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 02:51:53,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:53,864 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2023-11-29 02:51:53,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:51:53,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-29 02:51:53,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:53,867 INFO L225 Difference]: With dead ends: 84 [2023-11-29 02:51:53,867 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 02:51:53,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:51:53,869 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 116 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:53,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 132 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:51:53,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 02:51:53,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-29 02:51:53,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 66 states have internal predecessors, (68), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 02:51:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2023-11-29 02:51:53,881 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 20 [2023-11-29 02:51:53,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:53,883 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2023-11-29 02:51:53,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 02:51:53,883 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2023-11-29 02:51:53,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 02:51:53,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:53,884 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:51:53,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 02:51:54,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:54,090 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:54,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:54,091 INFO L85 PathProgramCache]: Analyzing trace with hash 377254708, now seen corresponding path program 1 times [2023-11-29 02:51:54,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:54,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055753672] [2023-11-29 02:51:54,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:54,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:54,102 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:54,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572604782] [2023-11-29 02:51:54,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:54,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:54,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:54,104 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:54,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:51:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:54,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:51:54,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:51:54,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:51:54,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:54,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055753672] [2023-11-29 02:51:54,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:54,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572604782] [2023-11-29 02:51:54,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572604782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:51:54,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:51:54,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:51:54,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980609430] [2023-11-29 02:51:54,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:51:54,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:51:54,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:54,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:51:54,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:51:54,240 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 02:51:54,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:54,432 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2023-11-29 02:51:54,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:51:54,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-11-29 02:51:54,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:54,434 INFO L225 Difference]: With dead ends: 101 [2023-11-29 02:51:54,434 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 02:51:54,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:51:54,436 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 156 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:54,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 155 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:51:54,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 02:51:54,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 81. [2023-11-29 02:51:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 69 states have internal predecessors, (71), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 02:51:54,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2023-11-29 02:51:54,449 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 21 [2023-11-29 02:51:54,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:54,449 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2023-11-29 02:51:54,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 02:51:54,450 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2023-11-29 02:51:54,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 02:51:54,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:54,451 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] [2023-11-29 02:51:54,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:51:54,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 02:51:54,655 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:54,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:54,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1646507377, now seen corresponding path program 1 times [2023-11-29 02:51:54,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:54,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596467881] [2023-11-29 02:51:54,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:54,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:54,671 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:54,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [620220113] [2023-11-29 02:51:54,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:54,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:54,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:54,673 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:54,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:51:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:54,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:51:54,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:51:54,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:51:54,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:54,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596467881] [2023-11-29 02:51:54,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:54,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620220113] [2023-11-29 02:51:54,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620220113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:51:54,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:51:54,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:51:54,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373650262] [2023-11-29 02:51:54,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:51:54,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:51:54,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:54,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:51:54,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:51:54,813 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:51:55,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:55,032 INFO L93 Difference]: Finished difference Result 138 states and 156 transitions. [2023-11-29 02:51:55,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:51:55,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 27 [2023-11-29 02:51:55,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:55,033 INFO L225 Difference]: With dead ends: 138 [2023-11-29 02:51:55,034 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 02:51:55,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:51:55,035 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 221 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:55,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 146 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:51:55,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 02:51:55,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 111. [2023-11-29 02:51:55,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.5714285714285714) internal successors, (110), 93 states have internal predecessors, (110), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 02:51:55,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 140 transitions. [2023-11-29 02:51:55,048 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 140 transitions. Word has length 27 [2023-11-29 02:51:55,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:55,049 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 140 transitions. [2023-11-29 02:51:55,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:51:55,049 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 140 transitions. [2023-11-29 02:51:55,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 02:51:55,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:55,050 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 02:51:55,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:51:55,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:55,255 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:55,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:55,256 INFO L85 PathProgramCache]: Analyzing trace with hash 497878920, now seen corresponding path program 1 times [2023-11-29 02:51:55,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:55,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367660047] [2023-11-29 02:51:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:55,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:55,270 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:55,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576403924] [2023-11-29 02:51:55,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:55,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:55,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:55,271 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:55,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:51:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:55,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:51:55,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:51:55,422 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:51:55,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:55,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367660047] [2023-11-29 02:51:55,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:55,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576403924] [2023-11-29 02:51:55,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576403924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:51:55,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:51:55,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:51:55,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021321586] [2023-11-29 02:51:55,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:51:55,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:51:55,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:55,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:51:55,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:51:55,424 INFO L87 Difference]: Start difference. First operand 111 states and 140 transitions. Second operand has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:51:55,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:55,619 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2023-11-29 02:51:55,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:51:55,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2023-11-29 02:51:55,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:55,621 INFO L225 Difference]: With dead ends: 138 [2023-11-29 02:51:55,621 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 02:51:55,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:51:55,623 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 156 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:55,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 160 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:51:55,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 02:51:55,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 112. [2023-11-29 02:51:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 94 states have internal predecessors, (109), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 02:51:55,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2023-11-29 02:51:55,638 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 28 [2023-11-29 02:51:55,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:55,638 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2023-11-29 02:51:55,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:51:55,639 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2023-11-29 02:51:55,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 02:51:55,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:55,640 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 02:51:55,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:51:55,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:55,841 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:55,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:55,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1745622607, now seen corresponding path program 1 times [2023-11-29 02:51:55,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:55,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708811323] [2023-11-29 02:51:55,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:55,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:55,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:55,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156791973] [2023-11-29 02:51:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:55,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:55,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:55,855 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:55,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:51:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:55,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:51:55,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:51:55,975 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:51:56,111 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:51:56,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:56,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708811323] [2023-11-29 02:51:56,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:56,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156791973] [2023-11-29 02:51:56,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156791973] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:51:56,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:51:56,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 02:51:56,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045496101] [2023-11-29 02:51:56,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:51:56,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:51:56,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:56,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:51:56,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:51:56,114 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 02:51:56,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:56,439 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions. [2023-11-29 02:51:56,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:51:56,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 29 [2023-11-29 02:51:56,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:56,442 INFO L225 Difference]: With dead ends: 129 [2023-11-29 02:51:56,442 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 02:51:56,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:51:56,443 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 292 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:56,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 251 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:51:56,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 02:51:56,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 110. [2023-11-29 02:51:56,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 92 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 02:51:56,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 135 transitions. [2023-11-29 02:51:56,459 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 135 transitions. Word has length 29 [2023-11-29 02:51:56,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:56,459 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 135 transitions. [2023-11-29 02:51:56,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 02:51:56,459 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 135 transitions. [2023-11-29 02:51:56,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 02:51:56,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:56,460 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 02:51:56,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:51:56,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:56,663 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:56,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:56,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1720274090, now seen corresponding path program 1 times [2023-11-29 02:51:56,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:56,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181348477] [2023-11-29 02:51:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:56,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:56,675 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:56,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568921999] [2023-11-29 02:51:56,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:56,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:56,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:56,677 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:56,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:51:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:56,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:51:56,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:56,894 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 02:51:56,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:51:56,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:56,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181348477] [2023-11-29 02:51:56,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:56,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568921999] [2023-11-29 02:51:56,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568921999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:51:56,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:51:56,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:51:56,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666738781] [2023-11-29 02:51:56,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:51:56,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:51:56,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:56,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:51:56,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:51:56,897 INFO L87 Difference]: Start difference. First operand 110 states and 135 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:51:57,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:57,122 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2023-11-29 02:51:57,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:51:57,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 30 [2023-11-29 02:51:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:57,125 INFO L225 Difference]: With dead ends: 126 [2023-11-29 02:51:57,125 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 02:51:57,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:51:57,126 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 137 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:57,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 159 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:51:57,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 02:51:57,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 108. [2023-11-29 02:51:57,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 90 states have internal predecessors, (100), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 02:51:57,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 130 transitions. [2023-11-29 02:51:57,141 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 130 transitions. Word has length 30 [2023-11-29 02:51:57,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:57,141 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 130 transitions. [2023-11-29 02:51:57,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:51:57,142 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 130 transitions. [2023-11-29 02:51:57,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 02:51:57,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:57,143 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:51:57,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 02:51:57,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:57,353 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:57,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:57,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1734705951, now seen corresponding path program 1 times [2023-11-29 02:51:57,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:57,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522869080] [2023-11-29 02:51:57,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:57,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:57,365 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:57,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639712983] [2023-11-29 02:51:57,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:57,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:57,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:57,366 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:57,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:51:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:57,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:51:57,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 02:51:57,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:51:57,612 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 02:51:57,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:57,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522869080] [2023-11-29 02:51:57,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:57,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639712983] [2023-11-29 02:51:57,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639712983] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:51:57,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:51:57,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 02:51:57,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353135102] [2023-11-29 02:51:57,614 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:51:57,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:51:57,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:57,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:51:57,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:51:57,615 INFO L87 Difference]: Start difference. First operand 108 states and 130 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:51:58,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:58,058 INFO L93 Difference]: Finished difference Result 216 states and 249 transitions. [2023-11-29 02:51:58,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:51:58,058 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 39 [2023-11-29 02:51:58,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:58,060 INFO L225 Difference]: With dead ends: 216 [2023-11-29 02:51:58,060 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 02:51:58,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:51:58,062 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 732 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:58,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 193 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:51:58,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 02:51:58,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 171. [2023-11-29 02:51:58,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 123 states have (on average 1.4227642276422765) internal successors, (175), 143 states have internal predecessors, (175), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 02:51:58,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 225 transitions. [2023-11-29 02:51:58,105 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 225 transitions. Word has length 39 [2023-11-29 02:51:58,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:58,105 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 225 transitions. [2023-11-29 02:51:58,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:51:58,106 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 225 transitions. [2023-11-29 02:51:58,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 02:51:58,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:58,108 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:51:58,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 02:51:58,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:58,314 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:58,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:58,314 INFO L85 PathProgramCache]: Analyzing trace with hash -221741680, now seen corresponding path program 1 times [2023-11-29 02:51:58,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:58,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951220243] [2023-11-29 02:51:58,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:58,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:58,326 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:58,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275464811] [2023-11-29 02:51:58,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:58,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:58,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:58,327 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:58,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:51:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:58,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:51:58,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:58,430 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 02:51:58,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:51:58,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:58,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951220243] [2023-11-29 02:51:58,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:58,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275464811] [2023-11-29 02:51:58,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275464811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:51:58,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:51:58,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:51:58,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414207695] [2023-11-29 02:51:58,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:51:58,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:51:58,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:58,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:51:58,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:51:58,433 INFO L87 Difference]: Start difference. First operand 171 states and 225 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 02:51:58,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:58,571 INFO L93 Difference]: Finished difference Result 229 states and 292 transitions. [2023-11-29 02:51:58,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:51:58,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 59 [2023-11-29 02:51:58,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:58,575 INFO L225 Difference]: With dead ends: 229 [2023-11-29 02:51:58,575 INFO L226 Difference]: Without dead ends: 227 [2023-11-29 02:51:58,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 02:51:58,577 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 137 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:58,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 88 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:51:58,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-29 02:51:58,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 192. [2023-11-29 02:51:58,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 140 states have (on average 1.3928571428571428) internal successors, (195), 160 states have internal predecessors, (195), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 02:51:58,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 253 transitions. [2023-11-29 02:51:58,602 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 253 transitions. Word has length 59 [2023-11-29 02:51:58,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:58,603 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 253 transitions. [2023-11-29 02:51:58,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 02:51:58,603 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 253 transitions. [2023-11-29 02:51:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 02:51:58,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:58,605 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:51:58,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 02:51:58,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:58,806 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:58,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:58,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1715942605, now seen corresponding path program 1 times [2023-11-29 02:51:58,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:58,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843670594] [2023-11-29 02:51:58,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:58,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:58,816 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:58,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827585685] [2023-11-29 02:51:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:58,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:58,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:58,818 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:58,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:51:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:58,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:51:58,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:58,910 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 02:51:58,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:51:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843670594] [2023-11-29 02:51:58,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827585685] [2023-11-29 02:51:58,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827585685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:51:58,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:51:58,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:51:58,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589178893] [2023-11-29 02:51:58,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:51:58,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:51:58,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:58,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:51:58,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:51:58,914 INFO L87 Difference]: Start difference. First operand 192 states and 253 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 02:51:59,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:59,038 INFO L93 Difference]: Finished difference Result 229 states and 286 transitions. [2023-11-29 02:51:59,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:51:59,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 60 [2023-11-29 02:51:59,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:59,041 INFO L225 Difference]: With dead ends: 229 [2023-11-29 02:51:59,041 INFO L226 Difference]: Without dead ends: 227 [2023-11-29 02:51:59,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 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 02:51:59,043 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 132 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:59,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 90 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:51:59,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-29 02:51:59,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 193. [2023-11-29 02:51:59,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 161 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 02:51:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 249 transitions. [2023-11-29 02:51:59,068 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 249 transitions. Word has length 60 [2023-11-29 02:51:59,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:59,069 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 249 transitions. [2023-11-29 02:51:59,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 02:51:59,069 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 249 transitions. [2023-11-29 02:51:59,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 02:51:59,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:59,071 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:51:59,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 02:51:59,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 02:51:59,277 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:59,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:59,277 INFO L85 PathProgramCache]: Analyzing trace with hash -246595163, now seen corresponding path program 1 times [2023-11-29 02:51:59,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:59,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670931076] [2023-11-29 02:51:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:59,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:59,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:59,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843305225] [2023-11-29 02:51:59,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:59,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:59,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:59,290 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:59,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:51:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:59,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:51:59,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:59,368 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 02:51:59,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:51:59,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:59,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670931076] [2023-11-29 02:51:59,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:59,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843305225] [2023-11-29 02:51:59,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843305225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:51:59,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:51:59,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:51:59,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297011387] [2023-11-29 02:51:59,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:51:59,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:51:59,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:59,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:51:59,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:51:59,371 INFO L87 Difference]: Start difference. First operand 193 states and 249 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 02:51:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:59,459 INFO L93 Difference]: Finished difference Result 201 states and 253 transitions. [2023-11-29 02:51:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:51:59,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 62 [2023-11-29 02:51:59,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:59,462 INFO L225 Difference]: With dead ends: 201 [2023-11-29 02:51:59,462 INFO L226 Difference]: Without dead ends: 200 [2023-11-29 02:51:59,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 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 02:51:59,463 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 15 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:59,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 128 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:51:59,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-29 02:51:59,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 194. [2023-11-29 02:51:59,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 142 states have (on average 1.3450704225352113) internal successors, (191), 162 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 02:51:59,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 249 transitions. [2023-11-29 02:51:59,495 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 249 transitions. Word has length 62 [2023-11-29 02:51:59,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:59,495 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 249 transitions. [2023-11-29 02:51:59,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 02:51:59,496 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 249 transitions. [2023-11-29 02:51:59,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 02:51:59,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:59,498 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:51:59,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 02:51:59,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 02:51:59,703 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:51:59,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:51:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash 945484661, now seen corresponding path program 1 times [2023-11-29 02:51:59,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:51:59,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146416326] [2023-11-29 02:51:59,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:59,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:51:59,714 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:51:59,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478443816] [2023-11-29 02:51:59,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:51:59,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:51:59,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:51:59,716 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:51:59,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 02:51:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:51:59,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:51:59,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:51:59,825 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 02:51:59,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:51:59,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:51:59,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146416326] [2023-11-29 02:51:59,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:51:59,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478443816] [2023-11-29 02:51:59,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478443816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:51:59,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:51:59,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:51:59,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728563590] [2023-11-29 02:51:59,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:51:59,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:51:59,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:51:59,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:51:59,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:51:59,828 INFO L87 Difference]: Start difference. First operand 194 states and 249 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 02:51:59,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:51:59,910 INFO L93 Difference]: Finished difference Result 194 states and 249 transitions. [2023-11-29 02:51:59,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:51:59,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 63 [2023-11-29 02:51:59,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:51:59,912 INFO L225 Difference]: With dead ends: 194 [2023-11-29 02:51:59,912 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 02:51:59,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 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 02:51:59,914 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 92 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:51:59,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 129 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:51:59,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 02:51:59,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2023-11-29 02:51:59,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.3309859154929577) internal successors, (189), 161 states have internal predecessors, (189), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 02:51:59,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2023-11-29 02:51:59,931 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 63 [2023-11-29 02:51:59,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:51:59,932 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2023-11-29 02:51:59,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 02:51:59,932 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2023-11-29 02:51:59,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 02:51:59,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:51:59,933 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:51:59,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 02:52:00,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 02:52:00,139 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:00,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:00,140 INFO L85 PathProgramCache]: Analyzing trace with hash -754746457, now seen corresponding path program 1 times [2023-11-29 02:52:00,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:00,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111276264] [2023-11-29 02:52:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:00,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:00,150 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:00,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334454194] [2023-11-29 02:52:00,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:00,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:00,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:00,151 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:00,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 02:52:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:00,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:52:00,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:00,286 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 02:52:00,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:52:00,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:00,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111276264] [2023-11-29 02:52:00,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:00,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334454194] [2023-11-29 02:52:00,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334454194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:52:00,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:52:00,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:52:00,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002329961] [2023-11-29 02:52:00,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:52:00,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:52:00,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:00,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:52:00,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:52:00,288 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 02:52:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:00,359 INFO L93 Difference]: Finished difference Result 193 states and 247 transitions. [2023-11-29 02:52:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:52:00,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 64 [2023-11-29 02:52:00,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:00,361 INFO L225 Difference]: With dead ends: 193 [2023-11-29 02:52:00,361 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 02:52:00,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 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 02:52:00,362 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:00,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 96 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:52:00,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 02:52:00,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-29 02:52:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 142 states have (on average 1.3169014084507042) internal successors, (187), 160 states have internal predecessors, (187), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 02:52:00,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 245 transitions. [2023-11-29 02:52:00,380 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 245 transitions. Word has length 64 [2023-11-29 02:52:00,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:00,381 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 245 transitions. [2023-11-29 02:52:00,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 02:52:00,381 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 245 transitions. [2023-11-29 02:52:00,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 02:52:00,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:00,382 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:00,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 02:52:00,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 02:52:00,582 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:00,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:00,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1922303561, now seen corresponding path program 1 times [2023-11-29 02:52:00,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:00,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554736056] [2023-11-29 02:52:00,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:00,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:00,592 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:00,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886119594] [2023-11-29 02:52:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:00,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:00,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:00,593 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:00,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 02:52:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:00,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:52:00,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:00,716 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 02:52:00,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:52:00,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:00,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554736056] [2023-11-29 02:52:00,717 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:00,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886119594] [2023-11-29 02:52:00,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886119594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:52:00,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:52:00,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:52:00,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408525507] [2023-11-29 02:52:00,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:52:00,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:52:00,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:00,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:52:00,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:52:00,719 INFO L87 Difference]: Start difference. First operand 192 states and 245 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 02:52:00,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:00,825 INFO L93 Difference]: Finished difference Result 210 states and 256 transitions. [2023-11-29 02:52:00,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:52:00,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 65 [2023-11-29 02:52:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:00,828 INFO L225 Difference]: With dead ends: 210 [2023-11-29 02:52:00,828 INFO L226 Difference]: Without dead ends: 209 [2023-11-29 02:52:00,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 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 02:52:00,829 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 45 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:00,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 155 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:52:00,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-29 02:52:00,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 196. [2023-11-29 02:52:00,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 164 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 02:52:00,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 249 transitions. [2023-11-29 02:52:00,847 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 249 transitions. Word has length 65 [2023-11-29 02:52:00,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:00,847 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 249 transitions. [2023-11-29 02:52:00,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 02:52:00,848 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 249 transitions. [2023-11-29 02:52:00,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 02:52:00,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:00,848 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:00,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 02:52:01,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 02:52:01,049 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:01,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:01,049 INFO L85 PathProgramCache]: Analyzing trace with hash 116785460, now seen corresponding path program 1 times [2023-11-29 02:52:01,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:01,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126107003] [2023-11-29 02:52:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:01,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:01,058 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:01,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1791781446] [2023-11-29 02:52:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:01,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:01,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:01,060 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:01,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 02:52:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:01,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:52:01,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:01,374 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 02:52:01,375 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:01,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:01,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126107003] [2023-11-29 02:52:01,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:01,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791781446] [2023-11-29 02:52:01,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791781446] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:01,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:01,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:52:01,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822822173] [2023-11-29 02:52:01,657 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:01,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:52:01,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:01,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:52:01,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:52:01,659 INFO L87 Difference]: Start difference. First operand 196 states and 249 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 02:52:02,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:02,170 INFO L93 Difference]: Finished difference Result 288 states and 351 transitions. [2023-11-29 02:52:02,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:52:02,170 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 74 [2023-11-29 02:52:02,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:02,173 INFO L225 Difference]: With dead ends: 288 [2023-11-29 02:52:02,173 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 02:52:02,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:52:02,174 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 297 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:02,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 310 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:52:02,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 02:52:02,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 256. [2023-11-29 02:52:02,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 196 states have (on average 1.3265306122448979) internal successors, (260), 214 states have internal predecessors, (260), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 02:52:02,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 338 transitions. [2023-11-29 02:52:02,203 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 338 transitions. Word has length 74 [2023-11-29 02:52:02,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:02,204 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 338 transitions. [2023-11-29 02:52:02,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 02:52:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 338 transitions. [2023-11-29 02:52:02,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 02:52:02,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:02,205 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:02,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 02:52:02,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 02:52:02,406 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:02,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:02,406 INFO L85 PathProgramCache]: Analyzing trace with hash -674617981, now seen corresponding path program 1 times [2023-11-29 02:52:02,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:02,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415218754] [2023-11-29 02:52:02,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:02,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:02,416 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:02,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625316874] [2023-11-29 02:52:02,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:02,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:02,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:02,417 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:02,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 02:52:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:02,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:52:02,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 02:52:02,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:02,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:02,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415218754] [2023-11-29 02:52:02,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:02,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625316874] [2023-11-29 02:52:02,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625316874] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:02,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:02,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:52:02,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532849624] [2023-11-29 02:52:02,853 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:02,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:52:02,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:02,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:52:02,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:52:02,855 INFO L87 Difference]: Start difference. First operand 256 states and 338 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 02:52:03,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:03,233 INFO L93 Difference]: Finished difference Result 351 states and 441 transitions. [2023-11-29 02:52:03,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:52:03,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 75 [2023-11-29 02:52:03,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:03,236 INFO L225 Difference]: With dead ends: 351 [2023-11-29 02:52:03,236 INFO L226 Difference]: Without dead ends: 348 [2023-11-29 02:52:03,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:52:03,237 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 245 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:03,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 300 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:52:03,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-29 02:52:03,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 315. [2023-11-29 02:52:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 245 states have (on average 1.3183673469387756) internal successors, (323), 263 states have internal predecessors, (323), 49 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 02:52:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 421 transitions. [2023-11-29 02:52:03,272 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 421 transitions. Word has length 75 [2023-11-29 02:52:03,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:03,272 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 421 transitions. [2023-11-29 02:52:03,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 02:52:03,273 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 421 transitions. [2023-11-29 02:52:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 02:52:03,273 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:03,274 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:03,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 02:52:03,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 02:52:03,479 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:03,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash 561679126, now seen corresponding path program 1 times [2023-11-29 02:52:03,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:03,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038769816] [2023-11-29 02:52:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:03,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:03,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:03,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [92402035] [2023-11-29 02:52:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:03,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:03,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:03,491 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:03,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 02:52:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:03,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:52:03,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 02:52:03,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:52:03,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:03,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038769816] [2023-11-29 02:52:03,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:03,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92402035] [2023-11-29 02:52:03,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92402035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:52:03,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:52:03,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:52:03,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422588018] [2023-11-29 02:52:03,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:52:03,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:52:03,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:03,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:52:03,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:52:03,640 INFO L87 Difference]: Start difference. First operand 315 states and 421 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 02:52:03,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:03,901 INFO L93 Difference]: Finished difference Result 475 states and 621 transitions. [2023-11-29 02:52:03,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:52:03,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2023-11-29 02:52:03,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:03,905 INFO L225 Difference]: With dead ends: 475 [2023-11-29 02:52:03,905 INFO L226 Difference]: Without dead ends: 472 [2023-11-29 02:52:03,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 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 02:52:03,906 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 144 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:03,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 176 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:52:03,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-11-29 02:52:03,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 382. [2023-11-29 02:52:03,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 301 states have (on average 1.3255813953488371) internal successors, (399), 319 states have internal predecessors, (399), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 02:52:03,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 519 transitions. [2023-11-29 02:52:03,972 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 519 transitions. Word has length 76 [2023-11-29 02:52:03,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:03,972 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 519 transitions. [2023-11-29 02:52:03,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 02:52:03,972 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 519 transitions. [2023-11-29 02:52:03,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:52:03,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:03,973 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:03,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 02:52:04,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 02:52:04,174 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:04,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:04,174 INFO L85 PathProgramCache]: Analyzing trace with hash 232183781, now seen corresponding path program 1 times [2023-11-29 02:52:04,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:04,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081998226] [2023-11-29 02:52:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:04,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:04,182 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:04,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1052717046] [2023-11-29 02:52:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:04,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:04,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:04,183 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:04,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 02:52:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:04,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:52:04,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:04,457 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 02:52:04,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:12,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:12,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081998226] [2023-11-29 02:52:12,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:12,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052717046] [2023-11-29 02:52:12,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052717046] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:12,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:12,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:52:12,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611696750] [2023-11-29 02:52:12,592 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:12,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:52:12,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:12,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:52:12,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=122, Unknown=2, NotChecked=0, Total=156 [2023-11-29 02:52:12,593 INFO L87 Difference]: Start difference. First operand 382 states and 519 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 02:52:13,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:13,068 INFO L93 Difference]: Finished difference Result 409 states and 529 transitions. [2023-11-29 02:52:13,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:52:13,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 77 [2023-11-29 02:52:13,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:13,071 INFO L225 Difference]: With dead ends: 409 [2023-11-29 02:52:13,071 INFO L226 Difference]: Without dead ends: 402 [2023-11-29 02:52:13,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=61, Invalid=243, Unknown=2, NotChecked=0, Total=306 [2023-11-29 02:52:13,072 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 224 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:13,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 346 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:52:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-29 02:52:13,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 380. [2023-11-29 02:52:13,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 299 states have (on average 1.31438127090301) internal successors, (393), 317 states have internal predecessors, (393), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 02:52:13,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 513 transitions. [2023-11-29 02:52:13,117 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 513 transitions. Word has length 77 [2023-11-29 02:52:13,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:13,118 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 513 transitions. [2023-11-29 02:52:13,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 02:52:13,118 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 513 transitions. [2023-11-29 02:52:13,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 02:52:13,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:13,119 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:13,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 02:52:13,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 02:52:13,320 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:13,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:13,320 INFO L85 PathProgramCache]: Analyzing trace with hash 742198340, now seen corresponding path program 1 times [2023-11-29 02:52:13,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:13,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939871768] [2023-11-29 02:52:13,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:13,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:13,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:13,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474901425] [2023-11-29 02:52:13,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:13,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:13,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:13,331 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:13,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 02:52:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:13,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:52:13,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:13,444 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 02:52:13,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 02:52:13,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:13,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939871768] [2023-11-29 02:52:13,566 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:13,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474901425] [2023-11-29 02:52:13,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474901425] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:52:13,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:52:13,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:52:13,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257772693] [2023-11-29 02:52:13,567 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:13,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:52:13,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:13,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:52:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:52:13,568 INFO L87 Difference]: Start difference. First operand 380 states and 513 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 02:52:14,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:14,026 INFO L93 Difference]: Finished difference Result 768 states and 1061 transitions. [2023-11-29 02:52:14,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:52:14,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 97 [2023-11-29 02:52:14,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:14,031 INFO L225 Difference]: With dead ends: 768 [2023-11-29 02:52:14,031 INFO L226 Difference]: Without dead ends: 766 [2023-11-29 02:52:14,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:52:14,032 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 343 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:14,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 265 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:52:14,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-11-29 02:52:14,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 648. [2023-11-29 02:52:14,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 513 states have (on average 1.3372319688109162) internal successors, (686), 530 states have internal predecessors, (686), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 02:52:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 916 transitions. [2023-11-29 02:52:14,144 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 916 transitions. Word has length 97 [2023-11-29 02:52:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:14,144 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 916 transitions. [2023-11-29 02:52:14,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 02:52:14,145 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 916 transitions. [2023-11-29 02:52:14,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 02:52:14,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:14,146 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:14,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 02:52:14,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:14,347 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:14,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:14,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1533312153, now seen corresponding path program 1 times [2023-11-29 02:52:14,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:14,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202334372] [2023-11-29 02:52:14,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:14,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:14,357 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:14,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301083110] [2023-11-29 02:52:14,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:14,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:14,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:14,358 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:14,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 02:52:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:14,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:52:14,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 02:52:14,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:14,566 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 02:52:14,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:14,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202334372] [2023-11-29 02:52:14,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:14,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301083110] [2023-11-29 02:52:14,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301083110] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:52:14,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:52:14,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:52:14,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994254147] [2023-11-29 02:52:14,567 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:14,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:52:14,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:14,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:52:14,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:52:14,569 INFO L87 Difference]: Start difference. First operand 648 states and 916 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 02:52:15,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:15,301 INFO L93 Difference]: Finished difference Result 772 states and 1041 transitions. [2023-11-29 02:52:15,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:52:15,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 98 [2023-11-29 02:52:15,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:15,307 INFO L225 Difference]: With dead ends: 772 [2023-11-29 02:52:15,307 INFO L226 Difference]: Without dead ends: 770 [2023-11-29 02:52:15,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:52:15,308 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 256 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:15,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 268 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:52:15,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2023-11-29 02:52:15,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 652. [2023-11-29 02:52:15,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 518 states have (on average 1.2857142857142858) internal successors, (666), 534 states have internal predecessors, (666), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 02:52:15,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 896 transitions. [2023-11-29 02:52:15,395 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 896 transitions. Word has length 98 [2023-11-29 02:52:15,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:15,396 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 896 transitions. [2023-11-29 02:52:15,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 02:52:15,396 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 896 transitions. [2023-11-29 02:52:15,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 02:52:15,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:15,397 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:15,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 02:52:15,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:15,598 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:15,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:15,598 INFO L85 PathProgramCache]: Analyzing trace with hash 339199601, now seen corresponding path program 1 times [2023-11-29 02:52:15,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:15,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886576110] [2023-11-29 02:52:15,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:15,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:15,608 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:15,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827276997] [2023-11-29 02:52:15,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:15,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:15,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:15,610 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:15,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 02:52:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:15,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:52:15,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:15,742 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 02:52:15,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:52:15,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:15,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886576110] [2023-11-29 02:52:15,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:15,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827276997] [2023-11-29 02:52:15,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827276997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:52:15,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:52:15,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:52:15,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862159123] [2023-11-29 02:52:15,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:52:15,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:52:15,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:15,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:52:15,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:52:15,744 INFO L87 Difference]: Start difference. First operand 652 states and 896 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 02:52:15,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:15,913 INFO L93 Difference]: Finished difference Result 657 states and 896 transitions. [2023-11-29 02:52:15,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:52:15,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2023-11-29 02:52:15,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:15,917 INFO L225 Difference]: With dead ends: 657 [2023-11-29 02:52:15,918 INFO L226 Difference]: Without dead ends: 656 [2023-11-29 02:52:15,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 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 02:52:15,919 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 21 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:15,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 208 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:52:15,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2023-11-29 02:52:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 651. [2023-11-29 02:52:16,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 518 states have (on average 1.281853281853282) internal successors, (664), 533 states have internal predecessors, (664), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 02:52:16,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 894 transitions. [2023-11-29 02:52:16,032 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 894 transitions. Word has length 100 [2023-11-29 02:52:16,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:16,032 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 894 transitions. [2023-11-29 02:52:16,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 02:52:16,033 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 894 transitions. [2023-11-29 02:52:16,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 02:52:16,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:16,034 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:16,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 02:52:16,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:16,234 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:16,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:16,235 INFO L85 PathProgramCache]: Analyzing trace with hash -962612885, now seen corresponding path program 1 times [2023-11-29 02:52:16,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:16,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860096845] [2023-11-29 02:52:16,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:16,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:16,244 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:16,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399955414] [2023-11-29 02:52:16,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:16,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:16,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:16,246 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:16,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 02:52:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:16,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:52:16,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 02:52:16,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 02:52:16,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:16,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860096845] [2023-11-29 02:52:16,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:16,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399955414] [2023-11-29 02:52:16,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399955414] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:52:16,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:52:16,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:52:16,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754025925] [2023-11-29 02:52:16,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:16,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:52:16,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:16,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:52:16,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:52:16,553 INFO L87 Difference]: Start difference. First operand 651 states and 894 transitions. Second operand has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-29 02:52:18,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:18,247 INFO L93 Difference]: Finished difference Result 888 states and 1173 transitions. [2023-11-29 02:52:18,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:52:18,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 103 [2023-11-29 02:52:18,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:18,252 INFO L225 Difference]: With dead ends: 888 [2023-11-29 02:52:18,252 INFO L226 Difference]: Without dead ends: 886 [2023-11-29 02:52:18,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:52:18,253 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 299 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:18,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 236 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 02:52:18,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2023-11-29 02:52:18,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 716. [2023-11-29 02:52:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 574 states have (on average 1.2804878048780488) internal successors, (735), 589 states have internal predecessors, (735), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-11-29 02:52:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 983 transitions. [2023-11-29 02:52:18,368 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 983 transitions. Word has length 103 [2023-11-29 02:52:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:18,369 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 983 transitions. [2023-11-29 02:52:18,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-29 02:52:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 983 transitions. [2023-11-29 02:52:18,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 02:52:18,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:18,371 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:18,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 02:52:18,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:18,574 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:18,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:18,574 INFO L85 PathProgramCache]: Analyzing trace with hash -961381523, now seen corresponding path program 1 times [2023-11-29 02:52:18,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:18,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655864157] [2023-11-29 02:52:18,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:18,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:18,582 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:18,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036956777] [2023-11-29 02:52:18,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:18,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:18,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:18,583 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:18,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 02:52:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:18,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:52:18,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:18,672 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:52:18,672 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:18,787 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:52:18,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:18,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655864157] [2023-11-29 02:52:18,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:18,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036956777] [2023-11-29 02:52:18,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036956777] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:52:18,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:52:18,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 02:52:18,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088234043] [2023-11-29 02:52:18,788 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:18,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:52:18,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:18,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:52:18,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:52:18,790 INFO L87 Difference]: Start difference. First operand 716 states and 983 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 02:52:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:19,027 INFO L93 Difference]: Finished difference Result 718 states and 985 transitions. [2023-11-29 02:52:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:52:19,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 103 [2023-11-29 02:52:19,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:19,032 INFO L225 Difference]: With dead ends: 718 [2023-11-29 02:52:19,032 INFO L226 Difference]: Without dead ends: 717 [2023-11-29 02:52:19,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:52:19,034 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 106 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:19,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 73 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:52:19,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-29 02:52:19,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 715. [2023-11-29 02:52:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 574 states have (on average 1.2473867595818815) internal successors, (716), 588 states have internal predecessors, (716), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-11-29 02:52:19,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 964 transitions. [2023-11-29 02:52:19,148 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 964 transitions. Word has length 103 [2023-11-29 02:52:19,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:19,148 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 964 transitions. [2023-11-29 02:52:19,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 02:52:19,149 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 964 transitions. [2023-11-29 02:52:19,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 02:52:19,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:19,150 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:19,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 02:52:19,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:19,351 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:19,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1163676672, now seen corresponding path program 1 times [2023-11-29 02:52:19,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:19,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242031466] [2023-11-29 02:52:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:19,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:19,359 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:19,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630131598] [2023-11-29 02:52:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:19,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:19,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:19,361 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:19,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 02:52:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:19,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:52:19,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 02:52:20,067 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:20,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:20,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242031466] [2023-11-29 02:52:20,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:20,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630131598] [2023-11-29 02:52:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630131598] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:20,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:20,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:52:20,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133884906] [2023-11-29 02:52:20,192 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:20,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:52:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:52:20,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:52:20,193 INFO L87 Difference]: Start difference. First operand 715 states and 964 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 02:52:21,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:21,378 INFO L93 Difference]: Finished difference Result 1272 states and 1707 transitions. [2023-11-29 02:52:21,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:52:21,378 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 112 [2023-11-29 02:52:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:21,384 INFO L225 Difference]: With dead ends: 1272 [2023-11-29 02:52:21,384 INFO L226 Difference]: Without dead ends: 1269 [2023-11-29 02:52:21,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:52:21,386 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 353 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:21,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 380 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:52:21,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2023-11-29 02:52:21,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 768. [2023-11-29 02:52:21,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 618 states have (on average 1.249190938511327) internal successors, (772), 632 states have internal predecessors, (772), 133 states have call successors, (133), 2 states have call predecessors, (133), 2 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-29 02:52:21,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1038 transitions. [2023-11-29 02:52:21,535 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1038 transitions. Word has length 112 [2023-11-29 02:52:21,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:21,536 INFO L495 AbstractCegarLoop]: Abstraction has 768 states and 1038 transitions. [2023-11-29 02:52:21,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 02:52:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1038 transitions. [2023-11-29 02:52:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 02:52:21,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:21,538 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:21,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 02:52:21,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:21,738 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:21,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:21,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1714238409, now seen corresponding path program 1 times [2023-11-29 02:52:21,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:21,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604407850] [2023-11-29 02:52:21,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:21,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:21,747 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:21,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [206111492] [2023-11-29 02:52:21,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:21,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:21,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:21,748 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:21,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 02:52:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:21,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:52:21,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 02:52:22,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:22,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:22,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604407850] [2023-11-29 02:52:22,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:22,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206111492] [2023-11-29 02:52:22,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206111492] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:22,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:22,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:52:22,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985825014] [2023-11-29 02:52:22,670 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:22,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:52:22,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:22,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:52:22,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:52:22,671 INFO L87 Difference]: Start difference. First operand 768 states and 1038 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 02:52:23,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:23,293 INFO L93 Difference]: Finished difference Result 865 states and 1149 transitions. [2023-11-29 02:52:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:52:23,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 113 [2023-11-29 02:52:23,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:23,299 INFO L225 Difference]: With dead ends: 865 [2023-11-29 02:52:23,299 INFO L226 Difference]: Without dead ends: 862 [2023-11-29 02:52:23,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:52:23,300 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 155 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:23,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 270 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:52:23,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2023-11-29 02:52:23,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 835. [2023-11-29 02:52:23,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 673 states have (on average 1.2436849925705795) internal successors, (837), 687 states have internal predecessors, (837), 145 states have call successors, (145), 2 states have call predecessors, (145), 2 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2023-11-29 02:52:23,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1127 transitions. [2023-11-29 02:52:23,431 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1127 transitions. Word has length 113 [2023-11-29 02:52:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:23,432 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1127 transitions. [2023-11-29 02:52:23,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 02:52:23,432 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1127 transitions. [2023-11-29 02:52:23,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 02:52:23,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:23,433 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:23,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 02:52:23,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:23,634 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:23,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:23,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1601783070, now seen corresponding path program 1 times [2023-11-29 02:52:23,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:23,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008309126] [2023-11-29 02:52:23,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:23,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:23,645 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:23,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907598034] [2023-11-29 02:52:23,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:23,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:23,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:23,646 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:23,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 02:52:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:23,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:52:23,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:23,823 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 02:52:23,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:52:23,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:23,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008309126] [2023-11-29 02:52:23,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:23,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907598034] [2023-11-29 02:52:23,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907598034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:52:23,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:52:23,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:52:23,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516908271] [2023-11-29 02:52:23,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:52:23,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:52:23,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:23,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:52:23,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:52:23,827 INFO L87 Difference]: Start difference. First operand 835 states and 1127 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 02:52:24,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:24,222 INFO L93 Difference]: Finished difference Result 980 states and 1303 transitions. [2023-11-29 02:52:24,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:52:24,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 114 [2023-11-29 02:52:24,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:24,229 INFO L225 Difference]: With dead ends: 980 [2023-11-29 02:52:24,229 INFO L226 Difference]: Without dead ends: 977 [2023-11-29 02:52:24,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:52:24,230 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 95 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:24,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 332 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:52:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2023-11-29 02:52:24,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 698. [2023-11-29 02:52:24,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 561 states have (on average 1.2156862745098038) internal successors, (682), 572 states have internal predecessors, (682), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2023-11-29 02:52:24,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 928 transitions. [2023-11-29 02:52:24,369 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 928 transitions. Word has length 114 [2023-11-29 02:52:24,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:24,370 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 928 transitions. [2023-11-29 02:52:24,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 02:52:24,370 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 928 transitions. [2023-11-29 02:52:24,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 02:52:24,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:24,371 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:24,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-29 02:52:24,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 02:52:24,572 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:24,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:24,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1884332441, now seen corresponding path program 1 times [2023-11-29 02:52:24,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:24,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107879259] [2023-11-29 02:52:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:24,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:24,581 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:24,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555371789] [2023-11-29 02:52:24,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:24,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:24,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:24,583 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:24,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 02:52:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:24,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:52:24,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:25,096 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 02:52:25,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:25,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:25,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107879259] [2023-11-29 02:52:25,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555371789] [2023-11-29 02:52:25,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555371789] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:25,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:25,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 02:52:25,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723590487] [2023-11-29 02:52:25,337 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:25,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:52:25,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:25,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:52:25,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:52:25,339 INFO L87 Difference]: Start difference. First operand 698 states and 928 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 02:52:25,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:25,945 INFO L93 Difference]: Finished difference Result 717 states and 936 transitions. [2023-11-29 02:52:25,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:52:25,945 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 115 [2023-11-29 02:52:25,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:25,948 INFO L225 Difference]: With dead ends: 717 [2023-11-29 02:52:25,948 INFO L226 Difference]: Without dead ends: 710 [2023-11-29 02:52:25,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:52:25,949 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 210 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:25,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 266 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:52:25,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-11-29 02:52:26,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 621. [2023-11-29 02:52:26,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 499 states have (on average 1.2064128256513027) internal successors, (602), 510 states have internal predecessors, (602), 108 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-29 02:52:26,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 818 transitions. [2023-11-29 02:52:26,075 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 818 transitions. Word has length 115 [2023-11-29 02:52:26,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:26,075 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 818 transitions. [2023-11-29 02:52:26,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 02:52:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 818 transitions. [2023-11-29 02:52:26,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 02:52:26,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:26,077 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:26,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 02:52:26,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:26,277 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:26,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:26,278 INFO L85 PathProgramCache]: Analyzing trace with hash -685818489, now seen corresponding path program 1 times [2023-11-29 02:52:26,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:26,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173413071] [2023-11-29 02:52:26,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:26,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:26,285 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:26,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145104916] [2023-11-29 02:52:26,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:26,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:26,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:26,286 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:26,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 02:52:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:52:26,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:52:26,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:26,639 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 02:52:26,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:26,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:26,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173413071] [2023-11-29 02:52:26,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:26,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145104916] [2023-11-29 02:52:26,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145104916] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:26,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:26,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:52:26,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545064452] [2023-11-29 02:52:26,873 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:26,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:52:26,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:26,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:52:26,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:52:26,874 INFO L87 Difference]: Start difference. First operand 621 states and 818 transitions. Second operand has 9 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 02:52:27,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:27,684 INFO L93 Difference]: Finished difference Result 755 states and 968 transitions. [2023-11-29 02:52:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:52:27,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 115 [2023-11-29 02:52:27,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:27,688 INFO L225 Difference]: With dead ends: 755 [2023-11-29 02:52:27,688 INFO L226 Difference]: Without dead ends: 753 [2023-11-29 02:52:27,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:52:27,689 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 181 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:27,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 171 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:52:27,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-11-29 02:52:27,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 539. [2023-11-29 02:52:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 429 states have (on average 1.1771561771561772) internal successors, (505), 440 states have internal predecessors, (505), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-11-29 02:52:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 697 transitions. [2023-11-29 02:52:27,766 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 697 transitions. Word has length 115 [2023-11-29 02:52:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:27,766 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 697 transitions. [2023-11-29 02:52:27,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 02:52:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 697 transitions. [2023-11-29 02:52:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 02:52:27,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:27,767 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:27,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 02:52:27,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 02:52:27,968 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:27,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:27,969 INFO L85 PathProgramCache]: Analyzing trace with hash -770695640, now seen corresponding path program 2 times [2023-11-29 02:52:27,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:27,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808868780] [2023-11-29 02:52:27,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:27,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:27,976 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:27,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151346654] [2023-11-29 02:52:27,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:52:27,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:27,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:27,978 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:27,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 02:52:28,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:52:28,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:52:28,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:52:28,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:28,087 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 02:52:28,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:52:28,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:28,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808868780] [2023-11-29 02:52:28,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:28,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151346654] [2023-11-29 02:52:28,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151346654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:52:28,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:52:28,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:52:28,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561612274] [2023-11-29 02:52:28,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:52:28,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:52:28,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:28,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:52:28,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:52:28,089 INFO L87 Difference]: Start difference. First operand 539 states and 697 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 02:52:28,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:28,355 INFO L93 Difference]: Finished difference Result 953 states and 1224 transitions. [2023-11-29 02:52:28,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:52:28,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2023-11-29 02:52:28,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:28,359 INFO L225 Difference]: With dead ends: 953 [2023-11-29 02:52:28,359 INFO L226 Difference]: Without dead ends: 587 [2023-11-29 02:52:28,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:52:28,362 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:28,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 126 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:52:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-11-29 02:52:28,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 570. [2023-11-29 02:52:28,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 457 states have (on average 1.175054704595186) internal successors, (537), 468 states have internal predecessors, (537), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 02:52:28,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 735 transitions. [2023-11-29 02:52:28,442 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 735 transitions. Word has length 122 [2023-11-29 02:52:28,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:28,442 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 735 transitions. [2023-11-29 02:52:28,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 02:52:28,442 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 735 transitions. [2023-11-29 02:52:28,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 02:52:28,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:28,444 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:28,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 02:52:28,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 02:52:28,647 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:28,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:28,647 INFO L85 PathProgramCache]: Analyzing trace with hash 490794444, now seen corresponding path program 2 times [2023-11-29 02:52:28,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:28,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180512106] [2023-11-29 02:52:28,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:28,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:28,656 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:28,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2147474709] [2023-11-29 02:52:28,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:52:28,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:28,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:28,657 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:28,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 02:52:28,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:52:28,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:52:28,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 02:52:28,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:29,323 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-29 02:52:29,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:29,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:29,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180512106] [2023-11-29 02:52:29,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:29,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147474709] [2023-11-29 02:52:29,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147474709] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:29,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:29,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:52:29,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470690419] [2023-11-29 02:52:29,465 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:29,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:52:29,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:29,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:52:29,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:52:29,466 INFO L87 Difference]: Start difference. First operand 570 states and 735 transitions. Second operand has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 8 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) [2023-11-29 02:52:30,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:30,457 INFO L93 Difference]: Finished difference Result 663 states and 839 transitions. [2023-11-29 02:52:30,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:52:30,457 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 8 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) Word has length 150 [2023-11-29 02:52:30,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:30,460 INFO L225 Difference]: With dead ends: 663 [2023-11-29 02:52:30,460 INFO L226 Difference]: Without dead ends: 662 [2023-11-29 02:52:30,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2023-11-29 02:52:30,462 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 242 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:30,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 472 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:52:30,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2023-11-29 02:52:30,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 570. [2023-11-29 02:52:30,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 457 states have (on average 1.1728665207877462) internal successors, (536), 468 states have internal predecessors, (536), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 02:52:30,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 734 transitions. [2023-11-29 02:52:30,540 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 734 transitions. Word has length 150 [2023-11-29 02:52:30,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:30,540 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 734 transitions. [2023-11-29 02:52:30,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 8 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) [2023-11-29 02:52:30,540 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 734 transitions. [2023-11-29 02:52:30,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 02:52:30,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:30,541 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:30,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 02:52:30,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:30,742 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:30,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:30,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1965241365, now seen corresponding path program 2 times [2023-11-29 02:52:30,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:30,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725151862] [2023-11-29 02:52:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:30,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:30,750 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:30,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885449022] [2023-11-29 02:52:30,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:52:30,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:30,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:30,751 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:30,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 02:52:30,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:52:30,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:52:30,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:52:30,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 42 proven. 57 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-29 02:52:31,752 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:32,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:32,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725151862] [2023-11-29 02:52:32,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:32,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885449022] [2023-11-29 02:52:32,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885449022] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:32,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:32,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 02:52:32,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999414116] [2023-11-29 02:52:32,924 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:32,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:52:32,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:32,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:52:32,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:52:32,926 INFO L87 Difference]: Start difference. First operand 570 states and 734 transitions. Second operand has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 02:52:35,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:35,311 INFO L93 Difference]: Finished difference Result 668 states and 845 transitions. [2023-11-29 02:52:35,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 02:52:35,312 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 151 [2023-11-29 02:52:35,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:35,316 INFO L225 Difference]: With dead ends: 668 [2023-11-29 02:52:35,316 INFO L226 Difference]: Without dead ends: 665 [2023-11-29 02:52:35,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:52:35,317 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 172 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:35,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 255 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 02:52:35,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-11-29 02:52:35,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 637. [2023-11-29 02:52:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 512 states have (on average 1.16796875) internal successors, (598), 523 states have internal predecessors, (598), 111 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-29 02:52:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 820 transitions. [2023-11-29 02:52:35,447 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 820 transitions. Word has length 151 [2023-11-29 02:52:35,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:35,448 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 820 transitions. [2023-11-29 02:52:35,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 02:52:35,448 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 820 transitions. [2023-11-29 02:52:35,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 02:52:35,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:35,450 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:35,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 02:52:35,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:35,650 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:35,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:35,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1188660301, now seen corresponding path program 2 times [2023-11-29 02:52:35,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:35,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905030216] [2023-11-29 02:52:35,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:35,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:35,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:35,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122525254] [2023-11-29 02:52:35,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:52:35,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:35,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:35,660 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:35,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 02:52:35,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:52:35,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:52:35,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 02:52:35,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-29 02:52:36,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:36,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:36,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905030216] [2023-11-29 02:52:36,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:36,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122525254] [2023-11-29 02:52:36,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122525254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:36,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:36,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 02:52:36,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228967074] [2023-11-29 02:52:36,770 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:36,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 02:52:36,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:36,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 02:52:36,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:52:36,771 INFO L87 Difference]: Start difference. First operand 637 states and 820 transitions. Second operand has 15 states, 14 states have (on average 5.5) internal successors, (77), 15 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 02:52:38,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:38,112 INFO L93 Difference]: Finished difference Result 654 states and 826 transitions. [2023-11-29 02:52:38,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:52:38,112 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.5) internal successors, (77), 15 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 153 [2023-11-29 02:52:38,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:38,115 INFO L225 Difference]: With dead ends: 654 [2023-11-29 02:52:38,115 INFO L226 Difference]: Without dead ends: 647 [2023-11-29 02:52:38,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=776, Unknown=0, NotChecked=0, Total=930 [2023-11-29 02:52:38,116 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 227 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:38,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 444 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:52:38,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-11-29 02:52:38,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 635. [2023-11-29 02:52:38,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 510 states have (on average 1.1549019607843136) internal successors, (589), 521 states have internal predecessors, (589), 111 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-29 02:52:38,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 811 transitions. [2023-11-29 02:52:38,211 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 811 transitions. Word has length 153 [2023-11-29 02:52:38,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:38,211 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 811 transitions. [2023-11-29 02:52:38,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.5) internal successors, (77), 15 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 02:52:38,211 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 811 transitions. [2023-11-29 02:52:38,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 02:52:38,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:38,212 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 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 02:52:38,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 02:52:38,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 02:52:38,413 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:38,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:38,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1381490629, now seen corresponding path program 2 times [2023-11-29 02:52:38,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:38,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635366254] [2023-11-29 02:52:38,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:38,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:38,424 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:38,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93582522] [2023-11-29 02:52:38,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:52:38,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:38,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:38,426 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:38,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 02:52:38,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:52:38,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:52:38,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:52:38,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:38,829 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-29 02:52:38,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:39,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635366254] [2023-11-29 02:52:39,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93582522] [2023-11-29 02:52:39,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93582522] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:39,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:39,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:52:39,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500877115] [2023-11-29 02:52:39,067 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:39,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:52:39,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:39,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:52:39,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:52:39,069 INFO L87 Difference]: Start difference. First operand 635 states and 811 transitions. Second operand has 10 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 02:52:40,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:52:40,048 INFO L93 Difference]: Finished difference Result 817 states and 1017 transitions. [2023-11-29 02:52:40,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:52:40,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 153 [2023-11-29 02:52:40,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:52:40,052 INFO L225 Difference]: With dead ends: 817 [2023-11-29 02:52:40,052 INFO L226 Difference]: Without dead ends: 815 [2023-11-29 02:52:40,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:52:40,053 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 237 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:52:40,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 174 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 02:52:40,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2023-11-29 02:52:40,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 675. [2023-11-29 02:52:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 545 states have (on average 1.144954128440367) internal successors, (624), 556 states have internal predecessors, (624), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2023-11-29 02:52:40,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 856 transitions. [2023-11-29 02:52:40,166 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 856 transitions. Word has length 153 [2023-11-29 02:52:40,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:52:40,166 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 856 transitions. [2023-11-29 02:52:40,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 02:52:40,166 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 856 transitions. [2023-11-29 02:52:40,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-29 02:52:40,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:52:40,167 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, 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 02:52:40,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 02:52:40,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 02:52:40,368 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:52:40,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:40,368 INFO L85 PathProgramCache]: Analyzing trace with hash -428308236, now seen corresponding path program 3 times [2023-11-29 02:52:40,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:40,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095258117] [2023-11-29 02:52:40,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:40,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:40,378 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:52:40,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2053875874] [2023-11-29 02:52:40,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:52:40,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:52:40,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:40,379 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:52:40,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 02:52:40,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 02:52:40,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:52:40,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 02:52:40,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:52:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 99 proven. 61 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-11-29 02:52:46,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:52:47,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:52:47,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095258117] [2023-11-29 02:52:47,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:52:47,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053875874] [2023-11-29 02:52:47,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053875874] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:52:47,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:52:47,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 02:52:47,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656244971] [2023-11-29 02:52:47,572 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:52:47,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 02:52:47,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:52:47,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 02:52:47,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=463, Unknown=2, NotChecked=0, Total=552 [2023-11-29 02:52:47,574 INFO L87 Difference]: Start difference. First operand 675 states and 856 transitions. Second operand has 18 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 02:52:53,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:53:01,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:53:02,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:53:09,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:53:23,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:53:25,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:53:26,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:26,507 INFO L93 Difference]: Finished difference Result 1112 states and 1416 transitions. [2023-11-29 02:53:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 02:53:26,508 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 160 [2023-11-29 02:53:26,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:26,514 INFO L225 Difference]: With dead ends: 1112 [2023-11-29 02:53:26,514 INFO L226 Difference]: Without dead ends: 1102 [2023-11-29 02:53:26,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=350, Invalid=1361, Unknown=11, NotChecked=0, Total=1722 [2023-11-29 02:53:26,516 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 583 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 119 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:26,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 340 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1051 Invalid, 9 Unknown, 0 Unchecked, 26.5s Time] [2023-11-29 02:53:26,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2023-11-29 02:53:26,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1062. [2023-11-29 02:53:26,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 863 states have (on average 1.1517960602549246) internal successors, (994), 874 states have internal predecessors, (994), 185 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 185 states have call predecessors, (185), 185 states have call successors, (185) [2023-11-29 02:53:26,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1364 transitions. [2023-11-29 02:53:26,728 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1364 transitions. Word has length 160 [2023-11-29 02:53:26,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:26,728 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1364 transitions. [2023-11-29 02:53:26,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 02:53:26,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1364 transitions. [2023-11-29 02:53:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 02:53:26,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:26,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:26,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 02:53:26,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 02:53:26,930 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:26,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:26,930 INFO L85 PathProgramCache]: Analyzing trace with hash 712647446, now seen corresponding path program 3 times [2023-11-29 02:53:26,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:26,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855409253] [2023-11-29 02:53:26,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:26,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:26,941 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:26,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535212886] [2023-11-29 02:53:26,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:53:26,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:26,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:26,942 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:26,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 02:53:27,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 02:53:27,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:53:27,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 02:53:27,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 66 proven. 70 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-11-29 02:53:27,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:27,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:27,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855409253] [2023-11-29 02:53:27,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:27,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535212886] [2023-11-29 02:53:27,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535212886] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:53:27,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:53:27,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 02:53:27,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982048492] [2023-11-29 02:53:27,739 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:27,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:53:27,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:27,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:53:27,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:53:27,740 INFO L87 Difference]: Start difference. First operand 1062 states and 1364 transitions. Second operand has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 02:53:28,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:28,782 INFO L93 Difference]: Finished difference Result 1069 states and 1366 transitions. [2023-11-29 02:53:28,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:53:28,783 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 6 states have call successors, (15) Word has length 162 [2023-11-29 02:53:28,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:28,787 INFO L225 Difference]: With dead ends: 1069 [2023-11-29 02:53:28,787 INFO L226 Difference]: Without dead ends: 1048 [2023-11-29 02:53:28,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=714, Unknown=0, NotChecked=0, Total=870 [2023-11-29 02:53:28,788 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 211 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:28,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 145 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:53:28,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2023-11-29 02:53:28,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 968. [2023-11-29 02:53:28,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 787 states have (on average 1.1130876747141043) internal successors, (876), 795 states have internal predecessors, (876), 170 states have call successors, (170), 2 states have call predecessors, (170), 2 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2023-11-29 02:53:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1216 transitions. [2023-11-29 02:53:28,983 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1216 transitions. Word has length 162 [2023-11-29 02:53:28,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:28,984 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 1216 transitions. [2023-11-29 02:53:28,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 02:53:28,984 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1216 transitions. [2023-11-29 02:53:28,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-29 02:53:28,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:28,986 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 02:53:28,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 02:53:29,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 02:53:29,186 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:29,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:29,187 INFO L85 PathProgramCache]: Analyzing trace with hash 99643032, now seen corresponding path program 3 times [2023-11-29 02:53:29,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:29,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453017804] [2023-11-29 02:53:29,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:29,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:29,197 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:29,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905223036] [2023-11-29 02:53:29,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:53:29,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:29,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:29,198 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:29,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 02:53:29,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 02:53:29,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:53:29,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 02:53:29,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 57 proven. 5 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2023-11-29 02:53:29,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:30,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:30,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453017804] [2023-11-29 02:53:30,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:30,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905223036] [2023-11-29 02:53:30,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905223036] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:53:30,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:53:30,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 02:53:30,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006095333] [2023-11-29 02:53:30,691 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:30,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:53:30,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:30,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:53:30,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:53:30,692 INFO L87 Difference]: Start difference. First operand 968 states and 1216 transitions. Second operand has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:53:32,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:32,559 INFO L93 Difference]: Finished difference Result 978 states and 1216 transitions. [2023-11-29 02:53:32,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:53:32,560 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 188 [2023-11-29 02:53:32,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:32,564 INFO L225 Difference]: With dead ends: 978 [2023-11-29 02:53:32,564 INFO L226 Difference]: Without dead ends: 977 [2023-11-29 02:53:32,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2023-11-29 02:53:32,565 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 215 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:32,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 191 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:53:32,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2023-11-29 02:53:32,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 968. [2023-11-29 02:53:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 787 states have (on average 1.1118170266836087) internal successors, (875), 795 states have internal predecessors, (875), 170 states have call successors, (170), 2 states have call predecessors, (170), 2 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2023-11-29 02:53:32,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1215 transitions. [2023-11-29 02:53:32,753 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1215 transitions. Word has length 188 [2023-11-29 02:53:32,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:32,753 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 1215 transitions. [2023-11-29 02:53:32,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:53:32,753 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1215 transitions. [2023-11-29 02:53:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 02:53:32,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:32,755 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 02:53:32,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 02:53:32,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 02:53:32,955 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:32,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:32,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1926931473, now seen corresponding path program 3 times [2023-11-29 02:53:32,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:32,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970807118] [2023-11-29 02:53:32,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:32,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:32,963 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:32,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175409201] [2023-11-29 02:53:32,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:53:32,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:32,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:32,964 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:32,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 02:53:33,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 02:53:33,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:53:33,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:53:33,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:33,514 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 66 proven. 24 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2023-11-29 02:53:33,514 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:33,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:33,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970807118] [2023-11-29 02:53:33,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:33,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175409201] [2023-11-29 02:53:33,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175409201] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:53:33,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:53:33,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:53:33,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806656076] [2023-11-29 02:53:33,945 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:33,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:53:33,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:33,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:53:33,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:53:33,947 INFO L87 Difference]: Start difference. First operand 968 states and 1215 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:53:36,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:36,849 INFO L93 Difference]: Finished difference Result 1229 states and 1530 transitions. [2023-11-29 02:53:36,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:36,850 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 191 [2023-11-29 02:53:36,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:36,856 INFO L225 Difference]: With dead ends: 1229 [2023-11-29 02:53:36,856 INFO L226 Difference]: Without dead ends: 1227 [2023-11-29 02:53:36,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:53:36,858 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 402 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:36,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 330 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 02:53:36,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2023-11-29 02:53:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 960. [2023-11-29 02:53:37,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 780 states have (on average 1.108974358974359) internal successors, (865), 788 states have internal predecessors, (865), 169 states have call successors, (169), 2 states have call predecessors, (169), 2 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) [2023-11-29 02:53:37,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1203 transitions. [2023-11-29 02:53:37,103 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1203 transitions. Word has length 191 [2023-11-29 02:53:37,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:37,103 INFO L495 AbstractCegarLoop]: Abstraction has 960 states and 1203 transitions. [2023-11-29 02:53:37,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:53:37,104 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1203 transitions. [2023-11-29 02:53:37,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:53:37,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:37,105 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:37,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 02:53:37,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 02:53:37,305 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:37,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:37,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1385459625, now seen corresponding path program 4 times [2023-11-29 02:53:37,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:37,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583096048] [2023-11-29 02:53:37,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:37,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:37,313 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:37,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864503295] [2023-11-29 02:53:37,313 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 02:53:37,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:37,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:37,314 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:37,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 02:53:37,391 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 02:53:37,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:53:37,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:53:37,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 84 proven. 33 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2023-11-29 02:53:38,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:38,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:38,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583096048] [2023-11-29 02:53:38,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:38,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864503295] [2023-11-29 02:53:38,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864503295] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:53:38,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:53:38,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 02:53:38,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480261278] [2023-11-29 02:53:38,183 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:38,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:53:38,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:38,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:53:38,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:53:38,185 INFO L87 Difference]: Start difference. First operand 960 states and 1203 transitions. Second operand has 13 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2023-11-29 02:53:39,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:39,211 INFO L93 Difference]: Finished difference Result 1284 states and 1601 transitions. [2023-11-29 02:53:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 02:53:39,212 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) Word has length 197 [2023-11-29 02:53:39,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:39,217 INFO L225 Difference]: With dead ends: 1284 [2023-11-29 02:53:39,217 INFO L226 Difference]: Without dead ends: 1274 [2023-11-29 02:53:39,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=459, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:53:39,218 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 170 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:39,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 500 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:53:39,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2023-11-29 02:53:39,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 571. [2023-11-29 02:53:39,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 460 states have (on average 1.0956521739130434) internal successors, (504), 467 states have internal predecessors, (504), 101 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2023-11-29 02:53:39,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 706 transitions. [2023-11-29 02:53:39,352 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 706 transitions. Word has length 197 [2023-11-29 02:53:39,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:39,352 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 706 transitions. [2023-11-29 02:53:39,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2023-11-29 02:53:39,353 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 706 transitions. [2023-11-29 02:53:39,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-29 02:53:39,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:39,354 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:39,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-29 02:53:39,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 02:53:39,554 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:39,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:39,555 INFO L85 PathProgramCache]: Analyzing trace with hash 242470496, now seen corresponding path program 2 times [2023-11-29 02:53:39,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:39,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380653542] [2023-11-29 02:53:39,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:39,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:39,563 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:39,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068450929] [2023-11-29 02:53:39,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:53:39,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:39,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:39,564 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:39,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 02:53:39,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:53:39,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:53:39,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:53:39,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2023-11-29 02:53:39,767 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2023-11-29 02:53:39,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:39,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380653542] [2023-11-29 02:53:39,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:39,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068450929] [2023-11-29 02:53:39,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068450929] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:53:39,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:53:39,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 02:53:39,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869978756] [2023-11-29 02:53:39,975 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:39,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:53:39,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:39,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:53:39,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:53:39,977 INFO L87 Difference]: Start difference. First operand 571 states and 706 transitions. Second operand has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) [2023-11-29 02:53:40,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:40,757 INFO L93 Difference]: Finished difference Result 1460 states and 1821 transitions. [2023-11-29 02:53:40,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:40,758 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) Word has length 211 [2023-11-29 02:53:40,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:40,764 INFO L225 Difference]: With dead ends: 1460 [2023-11-29 02:53:40,764 INFO L226 Difference]: Without dead ends: 1459 [2023-11-29 02:53:40,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:53:40,765 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 494 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:40,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 397 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:53:40,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2023-11-29 02:53:41,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1071. [2023-11-29 02:53:41,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 867 states have (on average 1.1430219146482121) internal successors, (991), 874 states have internal predecessors, (991), 194 states have call successors, (194), 2 states have call predecessors, (194), 2 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2023-11-29 02:53:41,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1379 transitions. [2023-11-29 02:53:41,046 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1379 transitions. Word has length 211 [2023-11-29 02:53:41,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:41,047 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1379 transitions. [2023-11-29 02:53:41,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) [2023-11-29 02:53:41,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1379 transitions. [2023-11-29 02:53:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 02:53:41,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:41,049 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 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, 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 02:53:41,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 02:53:41,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 02:53:41,249 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:41,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:41,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1073349123, now seen corresponding path program 2 times [2023-11-29 02:53:41,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:41,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011777680] [2023-11-29 02:53:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:41,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:41,261 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:41,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684220795] [2023-11-29 02:53:41,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:53:41,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:41,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:41,262 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:41,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 02:53:41,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:53:41,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:53:41,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:53:41,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:41,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2023-11-29 02:53:41,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2023-11-29 02:53:41,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:41,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011777680] [2023-11-29 02:53:41,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:41,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684220795] [2023-11-29 02:53:41,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684220795] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:53:41,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:53:41,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 02:53:41,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263587747] [2023-11-29 02:53:41,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:41,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:53:41,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:41,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:53:41,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:53:41,711 INFO L87 Difference]: Start difference. First operand 1071 states and 1379 transitions. Second operand has 14 states, 13 states have (on average 13.846153846153847) internal successors, (180), 14 states have internal predecessors, (180), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) [2023-11-29 02:53:42,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:42,540 INFO L93 Difference]: Finished difference Result 1464 states and 1805 transitions. [2023-11-29 02:53:42,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:42,540 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.846153846153847) internal successors, (180), 14 states have internal predecessors, (180), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) Word has length 212 [2023-11-29 02:53:42,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:42,546 INFO L225 Difference]: With dead ends: 1464 [2023-11-29 02:53:42,546 INFO L226 Difference]: Without dead ends: 1463 [2023-11-29 02:53:42,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:53:42,547 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 426 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:42,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 482 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:53:42,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2023-11-29 02:53:42,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1075. [2023-11-29 02:53:42,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 871 states have (on average 1.1194029850746268) internal successors, (975), 878 states have internal predecessors, (975), 194 states have call successors, (194), 2 states have call predecessors, (194), 2 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2023-11-29 02:53:42,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1363 transitions. [2023-11-29 02:53:42,802 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1363 transitions. Word has length 212 [2023-11-29 02:53:42,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:42,803 INFO L495 AbstractCegarLoop]: Abstraction has 1075 states and 1363 transitions. [2023-11-29 02:53:42,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.846153846153847) internal successors, (180), 14 states have internal predecessors, (180), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) [2023-11-29 02:53:42,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1363 transitions. [2023-11-29 02:53:42,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-29 02:53:42,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:42,804 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:42,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 02:53:43,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 02:53:43,005 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:43,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:43,005 INFO L85 PathProgramCache]: Analyzing trace with hash 91309392, now seen corresponding path program 1 times [2023-11-29 02:53:43,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:43,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407052909] [2023-11-29 02:53:43,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:43,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:43,018 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:43,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1590736892] [2023-11-29 02:53:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:43,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:43,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:43,019 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:43,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 02:53:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:43,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:53:43,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 558 proven. 39 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2023-11-29 02:53:43,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 110 proven. 39 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2023-11-29 02:53:43,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:43,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407052909] [2023-11-29 02:53:43,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:43,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590736892] [2023-11-29 02:53:43,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590736892] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:53:43,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:53:43,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-29 02:53:43,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733950342] [2023-11-29 02:53:43,329 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:43,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:43,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:43,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:43,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:43,330 INFO L87 Difference]: Start difference. First operand 1075 states and 1363 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 02:53:43,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:43,917 INFO L93 Difference]: Finished difference Result 1931 states and 2447 transitions. [2023-11-29 02:53:43,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:53:43,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 226 [2023-11-29 02:53:43,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:43,924 INFO L225 Difference]: With dead ends: 1931 [2023-11-29 02:53:43,925 INFO L226 Difference]: Without dead ends: 1161 [2023-11-29 02:53:43,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 442 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:53:43,926 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 92 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:43,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 322 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:53:43,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2023-11-29 02:53:44,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1122. [2023-11-29 02:53:44,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 910 states have (on average 1.1186813186813187) internal successors, (1018), 917 states have internal predecessors, (1018), 202 states have call successors, (202), 2 states have call predecessors, (202), 2 states have return successors, (202), 202 states have call predecessors, (202), 202 states have call successors, (202) [2023-11-29 02:53:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1422 transitions. [2023-11-29 02:53:44,194 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1422 transitions. Word has length 226 [2023-11-29 02:53:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:44,195 INFO L495 AbstractCegarLoop]: Abstraction has 1122 states and 1422 transitions. [2023-11-29 02:53:44,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 02:53:44,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1422 transitions. [2023-11-29 02:53:44,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-29 02:53:44,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:44,196 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:44,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 02:53:44,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 02:53:44,397 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:44,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:44,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2051919616, now seen corresponding path program 2 times [2023-11-29 02:53:44,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:44,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008625837] [2023-11-29 02:53:44,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:44,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:44,406 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:44,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090618167] [2023-11-29 02:53:44,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:53:44,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:44,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:44,407 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:44,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 02:53:44,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:53:44,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:53:44,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:53:44,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2023-11-29 02:53:44,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:44,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2023-11-29 02:53:44,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:44,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008625837] [2023-11-29 02:53:44,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:44,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090618167] [2023-11-29 02:53:44,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090618167] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:53:44,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:53:44,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 02:53:44,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426173914] [2023-11-29 02:53:44,972 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:44,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:53:44,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:44,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:53:44,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:53:44,974 INFO L87 Difference]: Start difference. First operand 1122 states and 1422 transitions. Second operand has 16 states, 15 states have (on average 13.733333333333333) internal successors, (206), 16 states have internal predecessors, (206), 15 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 15 states have call predecessors, (47), 15 states have call successors, (47) [2023-11-29 02:53:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:47,300 INFO L93 Difference]: Finished difference Result 2584 states and 3265 transitions. [2023-11-29 02:53:47,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 02:53:47,301 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 13.733333333333333) internal successors, (206), 16 states have internal predecessors, (206), 15 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 15 states have call predecessors, (47), 15 states have call successors, (47) Word has length 226 [2023-11-29 02:53:47,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:47,317 INFO L225 Difference]: With dead ends: 2584 [2023-11-29 02:53:47,317 INFO L226 Difference]: Without dead ends: 2571 [2023-11-29 02:53:47,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=380, Invalid=612, Unknown=0, NotChecked=0, Total=992 [2023-11-29 02:53:47,319 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 940 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:47,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 446 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 02:53:47,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2023-11-29 02:53:47,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 1471. [2023-11-29 02:53:47,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1195 states have (on average 1.105439330543933) internal successors, (1321), 1202 states have internal predecessors, (1321), 266 states have call successors, (266), 2 states have call predecessors, (266), 2 states have return successors, (266), 266 states have call predecessors, (266), 266 states have call successors, (266) [2023-11-29 02:53:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1853 transitions. [2023-11-29 02:53:47,931 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1853 transitions. Word has length 226 [2023-11-29 02:53:47,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:47,932 INFO L495 AbstractCegarLoop]: Abstraction has 1471 states and 1853 transitions. [2023-11-29 02:53:47,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 13.733333333333333) internal successors, (206), 16 states have internal predecessors, (206), 15 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 15 states have call predecessors, (47), 15 states have call successors, (47) [2023-11-29 02:53:47,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1853 transitions. [2023-11-29 02:53:47,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-11-29 02:53:47,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:47,935 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:47,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 02:53:48,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-29 02:53:48,136 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:48,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:48,136 INFO L85 PathProgramCache]: Analyzing trace with hash 2118661079, now seen corresponding path program 4 times [2023-11-29 02:53:48,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:48,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526108473] [2023-11-29 02:53:48,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:48,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:48,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:48,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938949015] [2023-11-29 02:53:48,152 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 02:53:48,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:48,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:48,153 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:48,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 02:53:48,250 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 02:53:48,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:53:48,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 02:53:48,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 3 proven. 285 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2023-11-29 02:53:49,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:49,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:49,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526108473] [2023-11-29 02:53:49,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:49,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938949015] [2023-11-29 02:53:49,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938949015] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:53:49,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:53:49,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 02:53:49,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693407792] [2023-11-29 02:53:49,450 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:49,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:53:49,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:49,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:53:49,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:53:49,452 INFO L87 Difference]: Start difference. First operand 1471 states and 1853 transitions. Second operand has 16 states, 15 states have (on average 9.133333333333333) internal successors, (137), 15 states have internal predecessors, (137), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) [2023-11-29 02:53:50,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:50,625 INFO L93 Difference]: Finished difference Result 1781 states and 2232 transitions. [2023-11-29 02:53:50,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:53:50,626 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.133333333333333) internal successors, (137), 15 states have internal predecessors, (137), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) Word has length 283 [2023-11-29 02:53:50,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:50,631 INFO L225 Difference]: With dead ends: 1781 [2023-11-29 02:53:50,631 INFO L226 Difference]: Without dead ends: 1736 [2023-11-29 02:53:50,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:53:50,632 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 177 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:50,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 275 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:53:50,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2023-11-29 02:53:51,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1520. [2023-11-29 02:53:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1235 states have (on average 1.1020242914979756) internal successors, (1361), 1242 states have internal predecessors, (1361), 275 states have call successors, (275), 2 states have call predecessors, (275), 2 states have return successors, (275), 275 states have call predecessors, (275), 275 states have call successors, (275) [2023-11-29 02:53:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 1911 transitions. [2023-11-29 02:53:51,049 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 1911 transitions. Word has length 283 [2023-11-29 02:53:51,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:51,049 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 1911 transitions. [2023-11-29 02:53:51,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.133333333333333) internal successors, (137), 15 states have internal predecessors, (137), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) [2023-11-29 02:53:51,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 1911 transitions. [2023-11-29 02:53:51,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-11-29 02:53:51,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:51,052 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-29 02:53:51,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2023-11-29 02:53:51,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:51,253 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:51,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:51,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2002185044, now seen corresponding path program 1 times [2023-11-29 02:53:51,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:51,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144618198] [2023-11-29 02:53:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:51,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:51,264 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:51,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818647064] [2023-11-29 02:53:51,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:51,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:51,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:51,265 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:51,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 02:53:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:51,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:53:51,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:51,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2311 backedges. 1028 proven. 157 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2023-11-29 02:53:51,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:51,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2311 backedges. 236 proven. 157 refuted. 0 times theorem prover too weak. 1918 trivial. 0 not checked. [2023-11-29 02:53:51,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:51,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144618198] [2023-11-29 02:53:51,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:51,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818647064] [2023-11-29 02:53:51,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818647064] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:53:51,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:53:51,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2023-11-29 02:53:51,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86556587] [2023-11-29 02:53:51,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:51,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:53:51,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:51,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:53:51,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:53:51,757 INFO L87 Difference]: Start difference. First operand 1520 states and 1911 transitions. Second operand has 11 states, 11 states have (on average 12.636363636363637) internal successors, (139), 11 states have internal predecessors, (139), 9 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 9 states have call predecessors, (36), 9 states have call successors, (36) [2023-11-29 02:53:53,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:53,292 INFO L93 Difference]: Finished difference Result 2745 states and 3453 transitions. [2023-11-29 02:53:53,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:53,292 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.636363636363637) internal successors, (139), 11 states have internal predecessors, (139), 9 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 9 states have call predecessors, (36), 9 states have call successors, (36) Word has length 314 [2023-11-29 02:53:53,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:53,298 INFO L225 Difference]: With dead ends: 2745 [2023-11-29 02:53:53,298 INFO L226 Difference]: Without dead ends: 1774 [2023-11-29 02:53:53,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 615 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:53:53,301 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 171 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:53,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 738 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:53:53,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2023-11-29 02:53:53,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1665. [2023-11-29 02:53:53,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1354 states have (on average 1.102658788774003) internal successors, (1493), 1361 states have internal predecessors, (1493), 301 states have call successors, (301), 2 states have call predecessors, (301), 2 states have return successors, (301), 301 states have call predecessors, (301), 301 states have call successors, (301) [2023-11-29 02:53:53,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2095 transitions. [2023-11-29 02:53:53,789 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2095 transitions. Word has length 314 [2023-11-29 02:53:53,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:53,789 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2095 transitions. [2023-11-29 02:53:53,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.636363636363637) internal successors, (139), 11 states have internal predecessors, (139), 9 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 9 states have call predecessors, (36), 9 states have call successors, (36) [2023-11-29 02:53:53,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2095 transitions. [2023-11-29 02:53:53,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-11-29 02:53:53,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:53,793 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:53:53,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 02:53:53,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:53,993 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:53,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:53,994 INFO L85 PathProgramCache]: Analyzing trace with hash 633737867, now seen corresponding path program 5 times [2023-11-29 02:53:53,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:53,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325887170] [2023-11-29 02:53:53,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:53,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:54,008 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:54,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1554477470] [2023-11-29 02:53:54,009 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 02:53:54,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:54,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:54,010 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:54,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 02:53:54,151 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2023-11-29 02:53:54,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:53:54,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 02:53:54,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2383 backedges. 0 proven. 393 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2023-11-29 02:53:55,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:55,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:55,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325887170] [2023-11-29 02:53:55,550 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:55,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554477470] [2023-11-29 02:53:55,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554477470] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:53:55,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:53:55,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2023-11-29 02:53:55,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572875387] [2023-11-29 02:53:55,551 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:55,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 02:53:55,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:55,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 02:53:55,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:53:55,553 INFO L87 Difference]: Start difference. First operand 1665 states and 2095 transitions. Second operand has 23 states, 22 states have (on average 7.045454545454546) internal successors, (155), 23 states have internal predecessors, (155), 13 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 12 states have call predecessors, (35), 13 states have call successors, (35) [2023-11-29 02:53:57,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:57,745 INFO L93 Difference]: Finished difference Result 1851 states and 2324 transitions. [2023-11-29 02:53:57,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 02:53:57,745 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.045454545454546) internal successors, (155), 23 states have internal predecessors, (155), 13 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 12 states have call predecessors, (35), 13 states have call successors, (35) Word has length 321 [2023-11-29 02:53:57,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:57,749 INFO L225 Difference]: With dead ends: 1851 [2023-11-29 02:53:57,750 INFO L226 Difference]: Without dead ends: 1806 [2023-11-29 02:53:57,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=202, Invalid=1778, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 02:53:57,751 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 277 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:57,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 898 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:53:57,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2023-11-29 02:53:58,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1665. [2023-11-29 02:53:58,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1354 states have (on average 1.10192023633678) internal successors, (1492), 1361 states have internal predecessors, (1492), 301 states have call successors, (301), 2 states have call predecessors, (301), 2 states have return successors, (301), 301 states have call predecessors, (301), 301 states have call successors, (301) [2023-11-29 02:53:58,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2094 transitions. [2023-11-29 02:53:58,222 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2094 transitions. Word has length 321 [2023-11-29 02:53:58,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:58,222 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2094 transitions. [2023-11-29 02:53:58,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.045454545454546) internal successors, (155), 23 states have internal predecessors, (155), 13 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 12 states have call predecessors, (35), 13 states have call successors, (35) [2023-11-29 02:53:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2094 transitions. [2023-11-29 02:53:58,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-11-29 02:53:58,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:58,225 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-29 02:53:58,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 02:53:58,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 02:53:58,426 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:53:58,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:58,426 INFO L85 PathProgramCache]: Analyzing trace with hash -891527304, now seen corresponding path program 2 times [2023-11-29 02:53:58,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:58,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821215488] [2023-11-29 02:53:58,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:58,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:58,439 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:53:58,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1340653021] [2023-11-29 02:53:58,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:53:58,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:53:58,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:58,440 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:53:58,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 02:53:58,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:53:58,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:53:58,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:53:58,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:53:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2979 backedges. 812 proven. 363 refuted. 0 times theorem prover too weak. 1804 trivial. 0 not checked. [2023-11-29 02:53:58,790 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:53:59,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2979 backedges. 212 proven. 363 refuted. 0 times theorem prover too weak. 2404 trivial. 0 not checked. [2023-11-29 02:53:59,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:59,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821215488] [2023-11-29 02:53:59,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:53:59,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340653021] [2023-11-29 02:53:59,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340653021] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:53:59,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:53:59,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2023-11-29 02:53:59,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805951123] [2023-11-29 02:53:59,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:53:59,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:53:59,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:59,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:53:59,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:53:59,087 INFO L87 Difference]: Start difference. First operand 1665 states and 2094 transitions. Second operand has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 12 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 12 states have call predecessors, (48), 12 states have call successors, (48) [2023-11-29 02:54:01,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:01,109 INFO L93 Difference]: Finished difference Result 2736 states and 3436 transitions. [2023-11-29 02:54:01,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 02:54:01,110 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 12 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 12 states have call predecessors, (48), 12 states have call successors, (48) Word has length 352 [2023-11-29 02:54:01,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:01,113 INFO L225 Difference]: With dead ends: 2736 [2023-11-29 02:54:01,113 INFO L226 Difference]: Without dead ends: 1760 [2023-11-29 02:54:01,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 688 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-11-29 02:54:01,116 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 305 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 1953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:01,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 1123 Invalid, 1953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:54:01,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2023-11-29 02:54:01,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1609. [2023-11-29 02:54:01,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1309 states have (on average 1.1016042780748663) internal successors, (1442), 1316 states have internal predecessors, (1442), 290 states have call successors, (290), 2 states have call predecessors, (290), 2 states have return successors, (290), 290 states have call predecessors, (290), 290 states have call successors, (290) [2023-11-29 02:54:01,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2022 transitions. [2023-11-29 02:54:01,590 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2022 transitions. Word has length 352 [2023-11-29 02:54:01,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:01,591 INFO L495 AbstractCegarLoop]: Abstraction has 1609 states and 2022 transitions. [2023-11-29 02:54:01,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 12 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 12 states have call predecessors, (48), 12 states have call successors, (48) [2023-11-29 02:54:01,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2022 transitions. [2023-11-29 02:54:01,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2023-11-29 02:54:01,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:01,593 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:54:01,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2023-11-29 02:54:01,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:01,794 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:54:01,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:01,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1903631127, now seen corresponding path program 6 times [2023-11-29 02:54:01,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:01,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272665594] [2023-11-29 02:54:01,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:01,807 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:54:01,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440506863] [2023-11-29 02:54:01,807 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 02:54:01,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:01,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:01,808 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:01,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 02:54:03,139 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-11-29 02:54:03,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:54:03,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-29 02:54:03,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:09,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3046 backedges. 385 proven. 378 refuted. 0 times theorem prover too weak. 2283 trivial. 0 not checked. [2023-11-29 02:54:09,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:13,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:13,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272665594] [2023-11-29 02:54:13,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:54:13,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440506863] [2023-11-29 02:54:13,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440506863] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:13,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:54:13,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-11-29 02:54:13,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164032313] [2023-11-29 02:54:13,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:13,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 02:54:13,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:13,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 02:54:13,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=707, Unknown=1, NotChecked=0, Total=812 [2023-11-29 02:54:13,071 INFO L87 Difference]: Start difference. First operand 1609 states and 2022 transitions. Second operand has 22 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 9 states have call successors, (23), 1 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2023-11-29 02:54:16,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:54:22,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:54:28,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:54:35,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:54:39,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:54:46,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:54:50,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:54:53,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:54:57,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:01,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:04,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:09,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:12,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:17,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:21,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:22,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:25,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:27,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:28,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:33,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:34,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:38,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:43,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:47,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:50,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:55:53,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:00,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:02,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:10,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:20,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:23,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:31,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:32,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:37,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:39,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:43,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:50,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:56:53,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:01,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:05,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:09,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:13,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:18,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:23,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:25,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:29,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:33,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:37,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:39,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:40,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:49,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:57:51,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:57:51,283 INFO L93 Difference]: Finished difference Result 1618 states and 2024 transitions. [2023-11-29 02:57:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 02:57:51,284 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 9 states have call successors, (23), 1 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) Word has length 359 [2023-11-29 02:57:51,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:57:51,287 INFO L225 Difference]: With dead ends: 1618 [2023-11-29 02:57:51,287 INFO L226 Difference]: Without dead ends: 1616 [2023-11-29 02:57:51,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=481, Invalid=2170, Unknown=1, NotChecked=0, Total=2652 [2023-11-29 02:57:51,289 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 199 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 50 mSolverCounterUnsat, 40 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 180.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 40 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:57:51,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 614 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1660 Invalid, 40 Unknown, 0 Unchecked, 181.0s Time] [2023-11-29 02:57:51,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2023-11-29 02:57:51,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1285. [2023-11-29 02:57:51,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1046 states have (on average 1.0774378585086042) internal successors, (1127), 1051 states have internal predecessors, (1127), 231 states have call successors, (231), 2 states have call predecessors, (231), 2 states have return successors, (231), 231 states have call predecessors, (231), 231 states have call successors, (231) [2023-11-29 02:57:51,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1589 transitions. [2023-11-29 02:57:51,739 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1589 transitions. Word has length 359 [2023-11-29 02:57:51,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:57:51,740 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 1589 transitions. [2023-11-29 02:57:51,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 9 states have call successors, (23), 1 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2023-11-29 02:57:51,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1589 transitions. [2023-11-29 02:57:51,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-29 02:57:51,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:57:51,742 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:57:51,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 02:57:51,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:57:51,943 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:57:51,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:57:51,943 INFO L85 PathProgramCache]: Analyzing trace with hash 162827132, now seen corresponding path program 1 times [2023-11-29 02:57:51,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:57:51,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591079344] [2023-11-29 02:57:51,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:57:51,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:57:51,955 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:57:51,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [815160098] [2023-11-29 02:57:51,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:57:51,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:57:51,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:57:51,956 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:57:51,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 02:57:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:57:52,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:57:52,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:57:52,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3202 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3190 trivial. 0 not checked. [2023-11-29 02:57:52,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:57:52,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:57:52,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591079344] [2023-11-29 02:57:52,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:57:52,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815160098] [2023-11-29 02:57:52,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815160098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:57:52,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:57:52,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:57:52,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444308511] [2023-11-29 02:57:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:57:52,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:57:52,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:57:52,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:57:52,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:57:52,102 INFO L87 Difference]: Start difference. First operand 1285 states and 1589 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 02:57:52,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:57:52,594 INFO L93 Difference]: Finished difference Result 1285 states and 1589 transitions. [2023-11-29 02:57:52,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:57:52,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 369 [2023-11-29 02:57:52,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:57:52,597 INFO L225 Difference]: With dead ends: 1285 [2023-11-29 02:57:52,597 INFO L226 Difference]: Without dead ends: 1107 [2023-11-29 02:57:52,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 367 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 02:57:52,598 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 32 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:57:52,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 61 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:57:52,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-11-29 02:57:52,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 832. [2023-11-29 02:57:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 673 states have (on average 1.062407132243685) internal successors, (715), 677 states have internal predecessors, (715), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-11-29 02:57:52,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1019 transitions. [2023-11-29 02:57:52,906 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1019 transitions. Word has length 369 [2023-11-29 02:57:52,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:57:52,906 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1019 transitions. [2023-11-29 02:57:52,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 02:57:52,907 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1019 transitions. [2023-11-29 02:57:52,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-11-29 02:57:52,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:57:52,909 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2023-11-29 02:57:52,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 02:57:53,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:57:53,110 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:57:53,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:57:53,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1124938052, now seen corresponding path program 3 times [2023-11-29 02:57:53,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:57:53,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633001133] [2023-11-29 02:57:53,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:57:53,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:57:53,122 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:57:53,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1670422479] [2023-11-29 02:57:53,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:57:53,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:57:53,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:57:53,123 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:57:53,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 02:57:53,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 02:57:53,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:57:53,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:57:53,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:57:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3733 backedges. 527 proven. 55 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2023-11-29 02:57:54,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:57:54,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:57:54,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633001133] [2023-11-29 02:57:54,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:57:54,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670422479] [2023-11-29 02:57:54,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670422479] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:57:54,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:57:54,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:57:54,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194679132] [2023-11-29 02:57:54,798 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:57:54,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:57:54,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:57:54,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:57:54,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:57:54,799 INFO L87 Difference]: Start difference. First operand 832 states and 1019 transitions. Second operand has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 02:57:57,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:57:57,551 INFO L93 Difference]: Finished difference Result 835 states and 1019 transitions. [2023-11-29 02:57:57,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:57:57,552 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 390 [2023-11-29 02:57:57,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:57:57,553 INFO L225 Difference]: With dead ends: 835 [2023-11-29 02:57:57,553 INFO L226 Difference]: Without dead ends: 833 [2023-11-29 02:57:57,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2023-11-29 02:57:57,554 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 141 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:57:57,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 365 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 02:57:57,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2023-11-29 02:57:57,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 830. [2023-11-29 02:57:57,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 673 states have (on average 1.0430906389301635) internal successors, (702), 675 states have internal predecessors, (702), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-11-29 02:57:57,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1006 transitions. [2023-11-29 02:57:57,855 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1006 transitions. Word has length 390 [2023-11-29 02:57:57,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:57:57,856 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1006 transitions. [2023-11-29 02:57:57,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 02:57:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1006 transitions. [2023-11-29 02:57:57,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2023-11-29 02:57:57,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:57:57,858 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:57:57,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 02:57:58,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 02:57:58,059 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:57:58,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:57:58,060 INFO L85 PathProgramCache]: Analyzing trace with hash -127036516, now seen corresponding path program 3 times [2023-11-29 02:57:58,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:57:58,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359402701] [2023-11-29 02:57:58,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:57:58,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:57:58,072 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:57:58,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44626569] [2023-11-29 02:57:58,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:57:58,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:57:58,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:57:58,074 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:57:58,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 02:57:58,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 02:57:58,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:57:58,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 02:57:58,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:00,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4307 backedges. 374 proven. 502 refuted. 0 times theorem prover too weak. 3431 trivial. 0 not checked. [2023-11-29 02:58:00,578 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:58:01,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:01,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359402701] [2023-11-29 02:58:01,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:01,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44626569] [2023-11-29 02:58:01,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44626569] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:58:01,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:58:01,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 02:58:01,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536675344] [2023-11-29 02:58:01,110 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:58:01,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:58:01,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:01,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:58:01,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:58:01,112 INFO L87 Difference]: Start difference. First operand 830 states and 1006 transitions. Second operand has 16 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 02:58:05,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:05,743 INFO L93 Difference]: Finished difference Result 834 states and 1008 transitions. [2023-11-29 02:58:05,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 02:58:05,743 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) Word has length 416 [2023-11-29 02:58:05,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:05,744 INFO L225 Difference]: With dead ends: 834 [2023-11-29 02:58:05,745 INFO L226 Difference]: Without dead ends: 628 [2023-11-29 02:58:05,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2023-11-29 02:58:05,745 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 88 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:05,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 324 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 02:58:05,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2023-11-29 02:58:05,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 262. [2023-11-29 02:58:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 210 states have (on average 1.0380952380952382) internal successors, (218), 211 states have internal predecessors, (218), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 02:58:05,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 314 transitions. [2023-11-29 02:58:05,894 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 314 transitions. Word has length 416 [2023-11-29 02:58:05,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:05,894 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 314 transitions. [2023-11-29 02:58:05,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 02:58:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 314 transitions. [2023-11-29 02:58:05,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2023-11-29 02:58:05,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:05,897 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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 02:58:05,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 02:58:06,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 02:58:06,097 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:58:06,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:06,098 INFO L85 PathProgramCache]: Analyzing trace with hash 445822360, now seen corresponding path program 3 times [2023-11-29 02:58:06,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:06,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153397575] [2023-11-29 02:58:06,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:06,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:06,110 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:06,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483188528] [2023-11-29 02:58:06,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:58:06,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:06,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:06,111 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:06,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 02:58:06,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2023-11-29 02:58:06,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:58:06,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:58:06,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 5072 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 5066 trivial. 0 not checked. [2023-11-29 02:58:06,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:58:07,141 INFO L134 CoverageAnalysis]: Checked inductivity of 5072 backedges. 3 proven. 1103 refuted. 0 times theorem prover too weak. 3966 trivial. 0 not checked. [2023-11-29 02:58:07,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:07,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153397575] [2023-11-29 02:58:07,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:07,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483188528] [2023-11-29 02:58:07,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483188528] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:58:07,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:58:07,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 15] total 18 [2023-11-29 02:58:07,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416437935] [2023-11-29 02:58:07,142 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:58:07,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 02:58:07,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:07,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 02:58:07,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:58:07,144 INFO L87 Difference]: Start difference. First operand 262 states and 314 transitions. Second operand has 19 states, 18 states have (on average 13.222222222222221) internal successors, (238), 19 states have internal predecessors, (238), 15 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (56), 15 states have call predecessors, (56), 15 states have call successors, (56) [2023-11-29 02:58:07,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:07,384 INFO L93 Difference]: Finished difference Result 262 states and 314 transitions. [2023-11-29 02:58:07,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:58:07,384 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 13.222222222222221) internal successors, (238), 19 states have internal predecessors, (238), 15 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (56), 15 states have call predecessors, (56), 15 states have call successors, (56) Word has length 439 [2023-11-29 02:58:07,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:07,385 INFO L225 Difference]: With dead ends: 262 [2023-11-29 02:58:07,385 INFO L226 Difference]: Without dead ends: 261 [2023-11-29 02:58:07,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 878 GetRequests, 859 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=295, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:58:07,386 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 91 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:07,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 171 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:07,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-29 02:58:07,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2023-11-29 02:58:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 210 states have (on average 1.0333333333333334) internal successors, (217), 210 states have internal predecessors, (217), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 02:58:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 313 transitions. [2023-11-29 02:58:07,542 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 313 transitions. Word has length 439 [2023-11-29 02:58:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:07,542 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 313 transitions. [2023-11-29 02:58:07,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 13.222222222222221) internal successors, (238), 19 states have internal predecessors, (238), 15 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (56), 15 states have call predecessors, (56), 15 states have call successors, (56) [2023-11-29 02:58:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 313 transitions. [2023-11-29 02:58:07,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-11-29 02:58:07,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:07,545 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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 02:58:07,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 02:58:07,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:07,746 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:58:07,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:07,746 INFO L85 PathProgramCache]: Analyzing trace with hash 935591365, now seen corresponding path program 3 times [2023-11-29 02:58:07,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:07,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054889195] [2023-11-29 02:58:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:07,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:07,758 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:07,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680007003] [2023-11-29 02:58:07,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:58:07,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:07,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:07,759 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:07,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 02:58:07,837 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 02:58:07,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:58:07,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:58:07,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:08,107 INFO L134 CoverageAnalysis]: Checked inductivity of 5082 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 4881 trivial. 0 not checked. [2023-11-29 02:58:08,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:58:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5082 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 4881 trivial. 0 not checked. [2023-11-29 02:58:08,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:08,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054889195] [2023-11-29 02:58:08,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:08,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680007003] [2023-11-29 02:58:08,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680007003] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:58:08,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:58:08,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 02:58:08,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756826103] [2023-11-29 02:58:08,470 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:58:08,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:58:08,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:08,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:58:08,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:58:08,471 INFO L87 Difference]: Start difference. First operand 261 states and 313 transitions. Second operand has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 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 02:58:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:08,908 INFO L93 Difference]: Finished difference Result 518 states and 623 transitions. [2023-11-29 02:58:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:58:08,908 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 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 440 [2023-11-29 02:58:08,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:08,909 INFO L225 Difference]: With dead ends: 518 [2023-11-29 02:58:08,910 INFO L226 Difference]: Without dead ends: 517 [2023-11-29 02:58:08,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 883 GetRequests, 870 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:58:08,910 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 132 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:08,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 275 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:08,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-29 02:58:09,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 372. [2023-11-29 02:58:09,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 300 states have (on average 1.0266666666666666) internal successors, (308), 300 states have internal predecessors, (308), 69 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-11-29 02:58:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 446 transitions. [2023-11-29 02:58:09,132 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 446 transitions. Word has length 440 [2023-11-29 02:58:09,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:09,132 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 446 transitions. [2023-11-29 02:58:09,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 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 02:58:09,132 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 446 transitions. [2023-11-29 02:58:09,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2023-11-29 02:58:09,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:09,137 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 66, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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] [2023-11-29 02:58:09,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 02:58:09,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:09,337 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:58:09,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:09,338 INFO L85 PathProgramCache]: Analyzing trace with hash -721752560, now seen corresponding path program 1 times [2023-11-29 02:58:09,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:09,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907552786] [2023-11-29 02:58:09,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:09,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:09,358 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:09,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193098704] [2023-11-29 02:58:09,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:09,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:09,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:09,359 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:09,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 02:58:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:09,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:58:09,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:09,842 INFO L134 CoverageAnalysis]: Checked inductivity of 10966 backedges. 5517 proven. 657 refuted. 0 times theorem prover too weak. 4792 trivial. 0 not checked. [2023-11-29 02:58:09,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:58:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 10966 backedges. 1261 proven. 657 refuted. 0 times theorem prover too weak. 9048 trivial. 0 not checked. [2023-11-29 02:58:10,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:10,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907552786] [2023-11-29 02:58:10,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:10,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193098704] [2023-11-29 02:58:10,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193098704] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:58:10,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:58:10,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 17 [2023-11-29 02:58:10,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267913304] [2023-11-29 02:58:10,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:58:10,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 02:58:10,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:10,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 02:58:10,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:58:10,294 INFO L87 Difference]: Start difference. First operand 372 states and 446 transitions. Second operand has 17 states, 17 states have (on average 14.529411764705882) internal successors, (247), 17 states have internal predecessors, (247), 15 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 15 states have call predecessors, (60), 15 states have call successors, (60) [2023-11-29 02:58:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:11,894 INFO L93 Difference]: Finished difference Result 747 states and 894 transitions. [2023-11-29 02:58:11,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:58:11,894 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 14.529411764705882) internal successors, (247), 17 states have internal predecessors, (247), 15 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 15 states have call predecessors, (60), 15 states have call successors, (60) Word has length 639 [2023-11-29 02:58:11,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:11,895 INFO L225 Difference]: With dead ends: 747 [2023-11-29 02:58:11,895 INFO L226 Difference]: Without dead ends: 403 [2023-11-29 02:58:11,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1284 GetRequests, 1255 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:58:11,896 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 143 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:11,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1202 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 02:58:11,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-29 02:58:12,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 394. [2023-11-29 02:58:12,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 318 states have (on average 1.0220125786163523) internal successors, (325), 318 states have internal predecessors, (325), 73 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-29 02:58:12,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 471 transitions. [2023-11-29 02:58:12,139 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 471 transitions. Word has length 639 [2023-11-29 02:58:12,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:12,139 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 471 transitions. [2023-11-29 02:58:12,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 14.529411764705882) internal successors, (247), 17 states have internal predecessors, (247), 15 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 15 states have call predecessors, (60), 15 states have call successors, (60) [2023-11-29 02:58:12,139 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 471 transitions. [2023-11-29 02:58:12,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2023-11-29 02:58:12,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:12,144 INFO L195 NwaCegarLoop]: trace histogram [70, 70, 70, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 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] [2023-11-29 02:58:12,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 02:58:12,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:12,345 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:58:12,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:12,345 INFO L85 PathProgramCache]: Analyzing trace with hash -748395836, now seen corresponding path program 2 times [2023-11-29 02:58:12,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:12,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317377684] [2023-11-29 02:58:12,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:12,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:12,361 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:12,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012574453] [2023-11-29 02:58:12,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:58:12,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:12,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:12,363 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:12,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 02:58:12,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:58:12,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:58:12,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:58:12,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 12379 backedges. 5759 proven. 1039 refuted. 0 times theorem prover too weak. 5581 trivial. 0 not checked. [2023-11-29 02:58:13,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:58:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 12379 backedges. 1343 proven. 1039 refuted. 0 times theorem prover too weak. 9997 trivial. 0 not checked. [2023-11-29 02:58:13,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:13,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317377684] [2023-11-29 02:58:13,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:13,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012574453] [2023-11-29 02:58:13,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012574453] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:58:13,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:58:13,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 20 [2023-11-29 02:58:13,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097986982] [2023-11-29 02:58:13,604 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:58:13,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 02:58:13,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:13,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 02:58:13,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:58:13,607 INFO L87 Difference]: Start difference. First operand 394 states and 471 transitions. Second operand has 20 states, 20 states have (on average 15.05) internal successors, (301), 20 states have internal predecessors, (301), 18 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 18 states have call predecessors, (72), 18 states have call successors, (72) [2023-11-29 02:58:15,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:15,844 INFO L93 Difference]: Finished difference Result 791 states and 944 transitions. [2023-11-29 02:58:15,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:58:15,844 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 15.05) internal successors, (301), 20 states have internal predecessors, (301), 18 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 18 states have call predecessors, (72), 18 states have call successors, (72) Word has length 677 [2023-11-29 02:58:15,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:15,845 INFO L225 Difference]: With dead ends: 791 [2023-11-29 02:58:15,845 INFO L226 Difference]: Without dead ends: 425 [2023-11-29 02:58:15,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1362 GetRequests, 1327 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2023-11-29 02:58:15,847 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 187 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 2596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:15,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1483 Invalid, 2596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 02:58:15,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-29 02:58:16,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 416. [2023-11-29 02:58:16,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 336 states have (on average 1.0178571428571428) internal successors, (342), 336 states have internal predecessors, (342), 77 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2023-11-29 02:58:16,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 496 transitions. [2023-11-29 02:58:16,105 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 496 transitions. Word has length 677 [2023-11-29 02:58:16,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:16,105 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 496 transitions. [2023-11-29 02:58:16,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.05) internal successors, (301), 20 states have internal predecessors, (301), 18 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 18 states have call predecessors, (72), 18 states have call successors, (72) [2023-11-29 02:58:16,105 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 496 transitions. [2023-11-29 02:58:16,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2023-11-29 02:58:16,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:16,110 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 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] [2023-11-29 02:58:16,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2023-11-29 02:58:16,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 02:58:16,310 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 02:58:16,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:16,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2143596664, now seen corresponding path program 3 times [2023-11-29 02:58:16,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:16,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408586920] [2023-11-29 02:58:16,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:16,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:16,328 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:16,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966685821] [2023-11-29 02:58:16,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:58:16,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:16,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:16,330 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:16,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 02:58:16,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 02:58:16,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:58:16,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:58:16,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:16,875 INFO L134 CoverageAnalysis]: Checked inductivity of 13878 backedges. 1406 proven. 345 refuted. 0 times theorem prover too weak. 12127 trivial. 0 not checked. [2023-11-29 02:58:16,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:58:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 13878 backedges. 1406 proven. 345 refuted. 0 times theorem prover too weak. 12127 trivial. 0 not checked. [2023-11-29 02:58:17,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:17,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408586920] [2023-11-29 02:58:17,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:17,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966685821] [2023-11-29 02:58:17,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966685821] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:58:17,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:58:17,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 02:58:17,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387599100] [2023-11-29 02:58:17,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:58:17,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 02:58:17,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:17,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 02:58:17,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:58:17,471 INFO L87 Difference]: Start difference. First operand 416 states and 496 transitions. Second operand has 17 states, 16 states have (on average 10.375) internal successors, (166), 17 states have internal predecessors, (166), 11 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (38), 10 states have call predecessors, (38), 11 states have call successors, (38) [2023-11-29 02:58:18,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:18,059 INFO L93 Difference]: Finished difference Result 430 states and 512 transitions. [2023-11-29 02:58:18,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:58:18,059 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 10.375) internal successors, (166), 17 states have internal predecessors, (166), 11 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (38), 10 states have call predecessors, (38), 11 states have call successors, (38) Word has length 715 [2023-11-29 02:58:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:18,060 INFO L225 Difference]: With dead ends: 430 [2023-11-29 02:58:18,060 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 02:58:18,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1438 GetRequests, 1413 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2023-11-29 02:58:18,062 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 174 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:18,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 567 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:58:18,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 02:58:18,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 02:58:18,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 02:58:18,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:58:18,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 715 [2023-11-29 02:58:18,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:18,063 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:58:18,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 10.375) internal successors, (166), 17 states have internal predecessors, (166), 11 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (38), 10 states have call predecessors, (38), 11 states have call successors, (38) [2023-11-29 02:58:18,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:58:18,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 02:58:18,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2023-11-29 02:58:18,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2023-11-29 02:58:18,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2023-11-29 02:58:18,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2023-11-29 02:58:18,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2023-11-29 02:58:18,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2023-11-29 02:58:18,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2023-11-29 02:58:18,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2023-11-29 02:58:18,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2023-11-29 02:58:18,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2023-11-29 02:58:18,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2023-11-29 02:58:18,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2023-11-29 02:58:18,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2023-11-29 02:58:18,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2023-11-29 02:58:18,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2023-11-29 02:58:18,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2023-11-29 02:58:18,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2023-11-29 02:58:18,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2023-11-29 02:58:18,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2023-11-29 02:58:18,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2023-11-29 02:58:18,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2023-11-29 02:58:18,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2023-11-29 02:58:18,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2023-11-29 02:58:18,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2023-11-29 02:58:18,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2023-11-29 02:58:18,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2023-11-29 02:58:18,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2023-11-29 02:58:18,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2023-11-29 02:58:18,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2023-11-29 02:58:18,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2023-11-29 02:58:18,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 02:58:18,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b20730-cafd-4803-ae23-33f0067731ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 02:58:18,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 02:59:40,465 WARN L293 SmtUtils]: Spent 1.37m on a formula simplification. DAG size of input: 885 DAG size of output: 920 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-29 03:02:50,534 WARN L293 SmtUtils]: Spent 3.17m on a formula simplification. DAG size of input: 826 DAG size of output: 819 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-29 03:04:42,857 WARN L293 SmtUtils]: Spent 1.87m on a formula simplification. DAG size of input: 901 DAG size of output: 1006 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)