./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu --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 0f9cd32f4b321d9995f5b714ac7ab8f417de9e23e3b823c49499e1a07b5844c4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:13,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:13,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:04:13,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:13,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:13,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:13,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:13,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:13,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:04:13,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:04:13,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:13,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:13,894 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:13,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:13,896 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:04:13,896 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:04:13,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:13,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:04:13,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:13,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:04:13,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:04:13,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:04:13,900 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:04:13,900 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:04:13,901 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:04:13,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:13,902 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:13,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:13,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:13,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:04:13,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:13,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:13,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:04:13,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:04:13,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:13,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:04:13,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:04:13,907 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:04:13,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:04:13,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:04:13,908 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:04:13,908 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_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f9cd32f4b321d9995f5b714ac7ab8f417de9e23e3b823c49499e1a07b5844c4 [2023-11-19 08:04:14,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:14,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:14,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:14,314 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:14,315 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:14,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound1.c [2023-11-19 08:04:17,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:17,706 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:17,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound1.c [2023-11-19 08:04:17,718 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/data/d3722fbb5/6dad32fff367434db8fa796f741554a3/FLAGe022dc154 [2023-11-19 08:04:17,739 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/data/d3722fbb5/6dad32fff367434db8fa796f741554a3 [2023-11-19 08:04:17,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:17,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:17,750 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:17,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:17,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:17,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:17,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f03e43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17, skipping insertion in model container [2023-11-19 08:04:17,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:17,788 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:17,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:17,992 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:18,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:18,035 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:18,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18 WrapperNode [2023-11-19 08:04:18,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:18,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:18,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:18,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:18,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,102 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 160 [2023-11-19 08:04:18,103 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:18,104 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:18,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:18,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:18,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:18,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:18,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:18,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:18,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (1/1) ... [2023-11-19 08:04:18,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:18,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:18,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:18,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:18,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:04:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:04:18,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:04:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:04:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:18,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 08:04:18,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 08:04:18,312 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:18,314 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:18,842 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:18,853 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:18,853 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:04:18,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:18 BoogieIcfgContainer [2023-11-19 08:04:18,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:18,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:04:18,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:04:18,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:04:18,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:17" (1/3) ... [2023-11-19 08:04:18,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32728e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:18, skipping insertion in model container [2023-11-19 08:04:18,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:18" (2/3) ... [2023-11-19 08:04:18,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32728e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:18, skipping insertion in model container [2023-11-19 08:04:18,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:18" (3/3) ... [2023-11-19 08:04:18,868 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_unwindbound1.c [2023-11-19 08:04:18,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:04:18,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2023-11-19 08:04:18,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:18,950 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;@6f4d9e7e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:04:18,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2023-11-19 08:04:18,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 89 states have (on average 1.853932584269663) internal successors, (165), 158 states have internal predecessors, (165), 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) [2023-11-19 08:04:18,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 08:04:18,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:18,965 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:18,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:18,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:18,976 INFO L85 PathProgramCache]: Analyzing trace with hash -863715224, now seen corresponding path program 1 times [2023-11-19 08:04:18,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:18,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589283937] [2023-11-19 08:04:18,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:18,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:19,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:19,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589283937] [2023-11-19 08:04:19,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 08:04:19,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581579017] [2023-11-19 08:04:19,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:19,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:19,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:19,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:19,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:04:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:19,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 08:04:19,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:19,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:04:19,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:19,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581579017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:19,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:19,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:19,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131347008] [2023-11-19 08:04:19,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:19,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:04:19,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:04:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:04:19,269 INFO L87 Difference]: Start difference. First operand has 170 states, 89 states have (on average 1.853932584269663) internal successors, (165), 158 states have internal predecessors, (165), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:04:19,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:19,309 INFO L93 Difference]: Finished difference Result 335 states and 375 transitions. [2023-11-19 08:04:19,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:04:19,312 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-19 08:04:19,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:19,322 INFO L225 Difference]: With dead ends: 335 [2023-11-19 08:04:19,323 INFO L226 Difference]: Without dead ends: 162 [2023-11-19 08:04:19,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:04:19,332 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:19,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:19,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-19 08:04:19,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-11-19 08:04:19,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 84 states have (on average 1.8333333333333333) internal successors, (154), 151 states have internal predecessors, (154), 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) [2023-11-19 08:04:19,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 172 transitions. [2023-11-19 08:04:19,398 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 172 transitions. Word has length 14 [2023-11-19 08:04:19,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:19,399 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 172 transitions. [2023-11-19 08:04:19,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:04:19,400 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 172 transitions. [2023-11-19 08:04:19,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 08:04:19,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:19,401 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:19,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 08:04:19,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 08:04:19,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:19,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:19,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1254895192, now seen corresponding path program 1 times [2023-11-19 08:04:19,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:19,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276662917] [2023-11-19 08:04:19,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:19,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:19,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:19,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699188049] [2023-11-19 08:04:19,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:19,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:19,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:19,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:19,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:04:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:19,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 08:04:19,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:19,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:19,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:19,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276662917] [2023-11-19 08:04:19,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:19,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699188049] [2023-11-19 08:04:19,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699188049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:19,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:19,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:04:19,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468911651] [2023-11-19 08:04:19,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:19,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:04:19,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:19,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:04:19,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:04:19,992 INFO L87 Difference]: Start difference. First operand 162 states and 172 transitions. Second operand has 7 states, 4 states have (on average 1.75) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:04:20,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:20,426 INFO L93 Difference]: Finished difference Result 162 states and 172 transitions. [2023-11-19 08:04:20,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:04:20,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 1.75) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-19 08:04:20,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:20,436 INFO L225 Difference]: With dead ends: 162 [2023-11-19 08:04:20,436 INFO L226 Difference]: Without dead ends: 160 [2023-11-19 08:04:20,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:04:20,440 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 431 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:20,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 255 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:04:20,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-19 08:04:20,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-19 08:04:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 84 states have (on average 1.8095238095238095) internal successors, (152), 149 states have internal predecessors, (152), 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) [2023-11-19 08:04:20,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 170 transitions. [2023-11-19 08:04:20,478 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 170 transitions. Word has length 14 [2023-11-19 08:04:20,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:20,480 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 170 transitions. [2023-11-19 08:04:20,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 1.75) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:04:20,480 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 170 transitions. [2023-11-19 08:04:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 08:04:20,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:20,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:20,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:20,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:20,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:20,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:20,693 INFO L85 PathProgramCache]: Analyzing trace with hash -247045249, now seen corresponding path program 1 times [2023-11-19 08:04:20,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:20,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669068825] [2023-11-19 08:04:20,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:20,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:20,729 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:20,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [772263628] [2023-11-19 08:04:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:20,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:20,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:20,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:20,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 08:04:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:04:20,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:04:20,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:20,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:20,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669068825] [2023-11-19 08:04:20,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:20,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772263628] [2023-11-19 08:04:20,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772263628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:20,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:20,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:04:20,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521970478] [2023-11-19 08:04:20,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:20,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:04:20,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:20,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:04:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:20,941 INFO L87 Difference]: Start difference. First operand 160 states and 170 transitions. Second operand has 6 states, 4 states have (on average 2.75) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 08:04:21,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:21,511 INFO L93 Difference]: Finished difference Result 160 states and 170 transitions. [2023-11-19 08:04:21,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:04:21,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-19 08:04:21,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:21,514 INFO L225 Difference]: With dead ends: 160 [2023-11-19 08:04:21,514 INFO L226 Difference]: Without dead ends: 159 [2023-11-19 08:04:21,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:04:21,516 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 284 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:21,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 255 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 08:04:21,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-19 08:04:21,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-11-19 08:04:21,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 84 states have (on average 1.7976190476190477) internal successors, (151), 148 states have internal predecessors, (151), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 08:04:21,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 169 transitions. [2023-11-19 08:04:21,547 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 169 transitions. Word has length 15 [2023-11-19 08:04:21,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:21,547 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 169 transitions. [2023-11-19 08:04:21,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 08:04:21,548 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 169 transitions. [2023-11-19 08:04:21,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 08:04:21,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:21,550 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:21,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:21,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:21,766 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:21,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash -403184857, now seen corresponding path program 1 times [2023-11-19 08:04:21,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:21,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955839438] [2023-11-19 08:04:21,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:21,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:21,787 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:21,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1527243857] [2023-11-19 08:04:21,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:21,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:21,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:21,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:21,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 08:04:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:21,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:04:21,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:21,959 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:21,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:21,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:21,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955839438] [2023-11-19 08:04:21,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:21,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527243857] [2023-11-19 08:04:21,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527243857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:21,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:21,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:21,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894194872] [2023-11-19 08:04:21,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:21,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:21,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:21,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:21,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:21,963 INFO L87 Difference]: Start difference. First operand 159 states and 169 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:04:22,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:22,025 INFO L93 Difference]: Finished difference Result 200 states and 211 transitions. [2023-11-19 08:04:22,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:22,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-11-19 08:04:22,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:22,029 INFO L225 Difference]: With dead ends: 200 [2023-11-19 08:04:22,029 INFO L226 Difference]: Without dead ends: 199 [2023-11-19 08:04:22,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:22,036 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 42 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:22,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 469 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:22,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-19 08:04:22,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 175. [2023-11-19 08:04:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.7755102040816326) internal successors, (174), 162 states have internal predecessors, (174), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 08:04:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 194 transitions. [2023-11-19 08:04:22,075 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 194 transitions. Word has length 29 [2023-11-19 08:04:22,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:22,076 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 194 transitions. [2023-11-19 08:04:22,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:04:22,076 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 194 transitions. [2023-11-19 08:04:22,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 08:04:22,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:22,078 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:22,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:22,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:22,279 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:22,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:22,279 INFO L85 PathProgramCache]: Analyzing trace with hash 386171375, now seen corresponding path program 1 times [2023-11-19 08:04:22,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:22,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695011922] [2023-11-19 08:04:22,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:22,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:22,296 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:22,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321148526] [2023-11-19 08:04:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:22,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:22,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:22,298 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:22,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 08:04:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:22,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:04:22,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:22,450 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:22,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:22,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:22,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695011922] [2023-11-19 08:04:22,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:22,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321148526] [2023-11-19 08:04:22,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321148526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:22,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:22,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:22,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358211741] [2023-11-19 08:04:22,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:22,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:22,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:22,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:22,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:22,453 INFO L87 Difference]: Start difference. First operand 175 states and 194 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:04:22,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:22,507 INFO L93 Difference]: Finished difference Result 205 states and 222 transitions. [2023-11-19 08:04:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:22,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2023-11-19 08:04:22,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:22,512 INFO L225 Difference]: With dead ends: 205 [2023-11-19 08:04:22,512 INFO L226 Difference]: Without dead ends: 175 [2023-11-19 08:04:22,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:22,518 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 3 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:22,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 472 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:22,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-19 08:04:22,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2023-11-19 08:04:22,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.7551020408163265) internal successors, (172), 162 states have internal predecessors, (172), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 08:04:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 192 transitions. [2023-11-19 08:04:22,549 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 192 transitions. Word has length 30 [2023-11-19 08:04:22,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:22,550 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 192 transitions. [2023-11-19 08:04:22,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:04:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 192 transitions. [2023-11-19 08:04:22,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 08:04:22,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:22,553 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:22,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:22,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:22,780 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:22,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:22,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1785894546, now seen corresponding path program 1 times [2023-11-19 08:04:22,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:22,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460501117] [2023-11-19 08:04:22,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:22,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:22,810 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:22,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60367241] [2023-11-19 08:04:22,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:22,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:22,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:22,829 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:22,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 08:04:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:22,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:04:22,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:22,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:22,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:22,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460501117] [2023-11-19 08:04:22,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:22,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60367241] [2023-11-19 08:04:22,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60367241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:22,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:22,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:22,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875291152] [2023-11-19 08:04:22,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:22,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:22,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:22,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:22,980 INFO L87 Difference]: Start difference. First operand 175 states and 192 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:23,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:23,178 INFO L93 Difference]: Finished difference Result 293 states and 309 transitions. [2023-11-19 08:04:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:23,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2023-11-19 08:04:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:23,182 INFO L225 Difference]: With dead ends: 293 [2023-11-19 08:04:23,183 INFO L226 Difference]: Without dead ends: 283 [2023-11-19 08:04:23,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:23,185 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 111 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:23,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 234 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:04:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-19 08:04:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 227. [2023-11-19 08:04:23,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 146 states have (on average 1.7534246575342465) internal successors, (256), 210 states have internal predecessors, (256), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 08:04:23,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 284 transitions. [2023-11-19 08:04:23,210 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 284 transitions. Word has length 33 [2023-11-19 08:04:23,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:23,212 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 284 transitions. [2023-11-19 08:04:23,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:23,213 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 284 transitions. [2023-11-19 08:04:23,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 08:04:23,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:23,217 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:23,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:23,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 08:04:23,440 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:23,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:23,440 INFO L85 PathProgramCache]: Analyzing trace with hash 471842102, now seen corresponding path program 1 times [2023-11-19 08:04:23,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:23,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001126265] [2023-11-19 08:04:23,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:23,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:23,467 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:23,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [508145460] [2023-11-19 08:04:23,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:23,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:23,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:23,470 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:23,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 08:04:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:23,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:04:23,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:23,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:23,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:23,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001126265] [2023-11-19 08:04:23,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:23,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508145460] [2023-11-19 08:04:23,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508145460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:23,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:23,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:23,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995297969] [2023-11-19 08:04:23,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:23,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:04:23,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:23,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:04:23,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:23,645 INFO L87 Difference]: Start difference. First operand 227 states and 284 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:04:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:23,739 INFO L93 Difference]: Finished difference Result 291 states and 355 transitions. [2023-11-19 08:04:23,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:04:23,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2023-11-19 08:04:23,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:23,746 INFO L225 Difference]: With dead ends: 291 [2023-11-19 08:04:23,746 INFO L226 Difference]: Without dead ends: 95 [2023-11-19 08:04:23,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:04:23,750 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 61 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:23,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 202 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:23,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-19 08:04:23,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 86. [2023-11-19 08:04:23,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 57 states have (on average 1.4385964912280702) internal successors, (82), 78 states have internal predecessors, (82), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:23,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2023-11-19 08:04:23,770 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 34 [2023-11-19 08:04:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:23,771 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2023-11-19 08:04:23,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:04:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2023-11-19 08:04:23,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 08:04:23,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:23,773 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:23,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:23,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:23,988 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:23,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:23,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1742265904, now seen corresponding path program 1 times [2023-11-19 08:04:23,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:23,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809151344] [2023-11-19 08:04:23,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:23,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:24,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:24,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305741211] [2023-11-19 08:04:24,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:24,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:24,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:24,007 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:24,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 08:04:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:24,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:24,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:24,231 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:24,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:24,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:24,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809151344] [2023-11-19 08:04:24,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:24,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305741211] [2023-11-19 08:04:24,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305741211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:24,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:24,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:24,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464325352] [2023-11-19 08:04:24,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:24,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:24,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:24,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:24,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:24,234 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:24,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:24,546 INFO L93 Difference]: Finished difference Result 120 states and 125 transitions. [2023-11-19 08:04:24,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:24,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2023-11-19 08:04:24,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:24,548 INFO L225 Difference]: With dead ends: 120 [2023-11-19 08:04:24,548 INFO L226 Difference]: Without dead ends: 119 [2023-11-19 08:04:24,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:24,549 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 130 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:24,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 88 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:04:24,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-19 08:04:24,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 87. [2023-11-19 08:04:24,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 79 states have internal predecessors, (83), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:24,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2023-11-19 08:04:24,561 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 35 [2023-11-19 08:04:24,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:24,561 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2023-11-19 08:04:24,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:24,562 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2023-11-19 08:04:24,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 08:04:24,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:24,563 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:24,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:24,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 08:04:24,787 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:24,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:24,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1742203347, now seen corresponding path program 1 times [2023-11-19 08:04:24,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:24,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924388534] [2023-11-19 08:04:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:24,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:24,805 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:24,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80839928] [2023-11-19 08:04:24,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:24,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:24,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:24,808 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:24,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 08:04:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:24,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:04:24,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:24,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:24,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:24,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924388534] [2023-11-19 08:04:24,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:24,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80839928] [2023-11-19 08:04:24,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80839928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:24,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:24,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:25,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389276244] [2023-11-19 08:04:25,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:25,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:04:25,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:25,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:04:25,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:25,005 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:04:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:25,096 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2023-11-19 08:04:25,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:04:25,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2023-11-19 08:04:25,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:25,101 INFO L225 Difference]: With dead ends: 111 [2023-11-19 08:04:25,101 INFO L226 Difference]: Without dead ends: 110 [2023-11-19 08:04:25,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:04:25,105 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 32 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:25,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 301 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:25,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-19 08:04:25,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 87. [2023-11-19 08:04:25,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 79 states have internal predecessors, (82), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:25,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2023-11-19 08:04:25,121 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 35 [2023-11-19 08:04:25,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:25,121 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2023-11-19 08:04:25,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:04:25,122 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2023-11-19 08:04:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 08:04:25,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:25,128 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:25,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:25,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:25,341 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:25,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:25,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1824331626, now seen corresponding path program 1 times [2023-11-19 08:04:25,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:25,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500950514] [2023-11-19 08:04:25,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:25,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:25,366 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:25,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895419467] [2023-11-19 08:04:25,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:25,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:25,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:25,373 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:25,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 08:04:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:25,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:04:25,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:25,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:25,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:25,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500950514] [2023-11-19 08:04:25,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:25,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895419467] [2023-11-19 08:04:25,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895419467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:25,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:25,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:25,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408209510] [2023-11-19 08:04:25,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:25,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:25,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:25,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:25,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:25,607 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:25,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:25,753 INFO L93 Difference]: Finished difference Result 106 states and 111 transitions. [2023-11-19 08:04:25,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:25,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-11-19 08:04:25,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:25,757 INFO L225 Difference]: With dead ends: 106 [2023-11-19 08:04:25,757 INFO L226 Difference]: Without dead ends: 105 [2023-11-19 08:04:25,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:25,759 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 41 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:25,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 139 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:25,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-19 08:04:25,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 88. [2023-11-19 08:04:25,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 80 states have internal predecessors, (83), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:25,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2023-11-19 08:04:25,775 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 36 [2023-11-19 08:04:25,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:25,776 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2023-11-19 08:04:25,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:25,777 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2023-11-19 08:04:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 08:04:25,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:25,779 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:25,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:25,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:25,994 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:25,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:25,994 INFO L85 PathProgramCache]: Analyzing trace with hash -719705358, now seen corresponding path program 1 times [2023-11-19 08:04:25,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:25,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638925144] [2023-11-19 08:04:25,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:25,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:26,010 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:26,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060642711] [2023-11-19 08:04:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:26,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:26,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:26,016 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:26,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 08:04:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:26,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:26,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:26,141 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:26,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:26,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:26,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638925144] [2023-11-19 08:04:26,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:26,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060642711] [2023-11-19 08:04:26,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060642711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:26,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:26,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:26,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664428414] [2023-11-19 08:04:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:26,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:26,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:26,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:26,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:26,145 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:26,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:26,238 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2023-11-19 08:04:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:26,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2023-11-19 08:04:26,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:26,240 INFO L225 Difference]: With dead ends: 109 [2023-11-19 08:04:26,241 INFO L226 Difference]: Without dead ends: 108 [2023-11-19 08:04:26,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:26,242 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 39 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:26,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 117 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:26,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-19 08:04:26,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 89. [2023-11-19 08:04:26,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.4) internal successors, (84), 81 states have internal predecessors, (84), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:26,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 94 transitions. [2023-11-19 08:04:26,254 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 94 transitions. Word has length 37 [2023-11-19 08:04:26,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:26,255 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 94 transitions. [2023-11-19 08:04:26,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:26,255 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 94 transitions. [2023-11-19 08:04:26,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 08:04:26,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:26,257 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:26,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:26,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:26,472 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:26,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:26,472 INFO L85 PathProgramCache]: Analyzing trace with hash -836029416, now seen corresponding path program 1 times [2023-11-19 08:04:26,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:26,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659065307] [2023-11-19 08:04:26,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:26,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:26,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:26,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1801811680] [2023-11-19 08:04:26,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:26,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:26,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:26,487 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:26,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 08:04:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:26,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:26,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:26,632 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:26,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:26,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:26,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659065307] [2023-11-19 08:04:26,633 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:26,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801811680] [2023-11-19 08:04:26,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801811680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:26,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:26,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:26,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83243280] [2023-11-19 08:04:26,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:26,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:26,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:26,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:26,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:26,639 INFO L87 Difference]: Start difference. First operand 89 states and 94 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:26,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:26,735 INFO L93 Difference]: Finished difference Result 108 states and 113 transitions. [2023-11-19 08:04:26,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:26,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2023-11-19 08:04:26,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:26,738 INFO L225 Difference]: With dead ends: 108 [2023-11-19 08:04:26,738 INFO L226 Difference]: Without dead ends: 107 [2023-11-19 08:04:26,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:26,739 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 35 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:26,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 119 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:26,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-19 08:04:26,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 90. [2023-11-19 08:04:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 82 states have internal predecessors, (85), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2023-11-19 08:04:26,752 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 38 [2023-11-19 08:04:26,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:26,754 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2023-11-19 08:04:26,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:26,754 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2023-11-19 08:04:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 08:04:26,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:26,757 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:26,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:26,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 08:04:26,971 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:26,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:26,972 INFO L85 PathProgramCache]: Analyzing trace with hash -331376867, now seen corresponding path program 1 times [2023-11-19 08:04:26,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:26,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573167304] [2023-11-19 08:04:26,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:26,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:26,997 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:27,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1410283879] [2023-11-19 08:04:27,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:27,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:27,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:27,002 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:27,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 08:04:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:27,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:27,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:27,142 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:27,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:27,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:27,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573167304] [2023-11-19 08:04:27,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:27,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410283879] [2023-11-19 08:04:27,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410283879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:27,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:27,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:27,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450122162] [2023-11-19 08:04:27,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:27,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:04:27,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:27,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:04:27,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:27,152 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:27,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:27,246 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2023-11-19 08:04:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:27,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-19 08:04:27,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:27,248 INFO L225 Difference]: With dead ends: 107 [2023-11-19 08:04:27,248 INFO L226 Difference]: Without dead ends: 106 [2023-11-19 08:04:27,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:27,249 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 22 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:27,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 181 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:27,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-19 08:04:27,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 91. [2023-11-19 08:04:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 83 states have internal predecessors, (86), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:27,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 96 transitions. [2023-11-19 08:04:27,258 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 96 transitions. Word has length 40 [2023-11-19 08:04:27,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:27,259 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 96 transitions. [2023-11-19 08:04:27,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:27,259 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 96 transitions. [2023-11-19 08:04:27,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 08:04:27,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:27,260 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:27,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:27,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:27,482 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:27,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:27,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1682748106, now seen corresponding path program 1 times [2023-11-19 08:04:27,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:27,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486623905] [2023-11-19 08:04:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:27,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:27,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:27,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2073823188] [2023-11-19 08:04:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:27,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:27,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:27,498 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:27,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 08:04:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:27,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:04:27,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:27,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:27,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:27,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486623905] [2023-11-19 08:04:27,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:27,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073823188] [2023-11-19 08:04:27,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073823188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:27,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:27,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:27,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540429165] [2023-11-19 08:04:27,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:27,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:27,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:27,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:27,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:27,687 INFO L87 Difference]: Start difference. First operand 91 states and 96 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:27,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:27,817 INFO L93 Difference]: Finished difference Result 106 states and 111 transitions. [2023-11-19 08:04:27,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:27,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-11-19 08:04:27,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:27,820 INFO L225 Difference]: With dead ends: 106 [2023-11-19 08:04:27,821 INFO L226 Difference]: Without dead ends: 105 [2023-11-19 08:04:27,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:27,822 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 21 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:27,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 147 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:27,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-19 08:04:27,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 92. [2023-11-19 08:04:27,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 63 states have (on average 1.380952380952381) internal successors, (87), 84 states have internal predecessors, (87), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:27,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2023-11-19 08:04:27,834 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 41 [2023-11-19 08:04:27,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:27,835 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2023-11-19 08:04:27,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:27,835 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2023-11-19 08:04:27,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 08:04:27,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:27,837 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:27,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:28,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:28,051 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:28,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:28,052 INFO L85 PathProgramCache]: Analyzing trace with hash -625583553, now seen corresponding path program 1 times [2023-11-19 08:04:28,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:28,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965619747] [2023-11-19 08:04:28,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:28,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:28,065 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:28,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1903035394] [2023-11-19 08:04:28,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:28,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:28,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:28,068 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:28,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 08:04:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:28,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:04:28,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:28,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:28,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:28,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965619747] [2023-11-19 08:04:28,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:28,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903035394] [2023-11-19 08:04:28,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903035394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:28,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:28,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:28,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096995907] [2023-11-19 08:04:28,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:28,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:28,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:28,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:28,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:28,171 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:04:28,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:28,205 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2023-11-19 08:04:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:28,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2023-11-19 08:04:28,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:28,208 INFO L225 Difference]: With dead ends: 92 [2023-11-19 08:04:28,208 INFO L226 Difference]: Without dead ends: 88 [2023-11-19 08:04:28,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:28,210 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 43 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:28,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 74 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:28,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-19 08:04:28,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-19 08:04:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 80 states have internal predecessors, (83), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:28,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2023-11-19 08:04:28,221 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 42 [2023-11-19 08:04:28,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:28,222 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2023-11-19 08:04:28,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:04:28,222 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2023-11-19 08:04:28,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 08:04:28,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:28,223 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:28,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:28,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:28,452 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:28,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:28,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1088285335, now seen corresponding path program 1 times [2023-11-19 08:04:28,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:28,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897127300] [2023-11-19 08:04:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:28,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:28,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:28,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1249363474] [2023-11-19 08:04:28,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:28,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:28,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:28,469 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:28,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 08:04:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:28,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:28,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:28,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:28,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:28,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897127300] [2023-11-19 08:04:28,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:28,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249363474] [2023-11-19 08:04:28,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249363474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:28,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:28,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:28,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698101838] [2023-11-19 08:04:28,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:28,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:28,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:28,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:28,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:28,664 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 08:04:28,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:28,786 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2023-11-19 08:04:28,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:28,787 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2023-11-19 08:04:28,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:28,788 INFO L225 Difference]: With dead ends: 101 [2023-11-19 08:04:28,789 INFO L226 Difference]: Without dead ends: 100 [2023-11-19 08:04:28,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:28,790 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 80 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:28,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 98 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:28,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-19 08:04:28,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2023-11-19 08:04:28,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.3125) internal successors, (84), 81 states have internal predecessors, (84), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:04:28,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2023-11-19 08:04:28,808 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 44 [2023-11-19 08:04:28,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:28,808 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2023-11-19 08:04:28,809 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 08:04:28,809 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2023-11-19 08:04:28,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 08:04:28,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:28,812 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:28,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:29,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:29,028 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:29,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:29,028 INFO L85 PathProgramCache]: Analyzing trace with hash 622893190, now seen corresponding path program 1 times [2023-11-19 08:04:29,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:29,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633666691] [2023-11-19 08:04:29,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:29,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:29,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:29,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226629223] [2023-11-19 08:04:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:29,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:29,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:29,042 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:29,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 08:04:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:29,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:29,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:29,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:29,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:29,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633666691] [2023-11-19 08:04:29,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:29,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226629223] [2023-11-19 08:04:29,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226629223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:29,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:29,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:29,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038403890] [2023-11-19 08:04:29,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:29,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:29,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:29,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:29,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:29,240 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 08:04:29,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:29,392 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2023-11-19 08:04:29,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:29,393 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-11-19 08:04:29,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:29,394 INFO L225 Difference]: With dead ends: 100 [2023-11-19 08:04:29,394 INFO L226 Difference]: Without dead ends: 99 [2023-11-19 08:04:29,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:29,395 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 76 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:29,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 98 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:29,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-19 08:04:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2023-11-19 08:04:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 82 states have internal predecessors, (85), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:04:29,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions. [2023-11-19 08:04:29,408 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 45 [2023-11-19 08:04:29,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:29,409 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions. [2023-11-19 08:04:29,409 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 08:04:29,410 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2023-11-19 08:04:29,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 08:04:29,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:29,411 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:29,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:29,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:29,620 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:29,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:29,621 INFO L85 PathProgramCache]: Analyzing trace with hash 109632865, now seen corresponding path program 1 times [2023-11-19 08:04:29,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:29,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727821711] [2023-11-19 08:04:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:29,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:29,646 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:29,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512905681] [2023-11-19 08:04:29,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:29,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:29,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:29,655 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:29,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 08:04:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:29,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:29,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:29,813 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:29,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:29,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:29,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727821711] [2023-11-19 08:04:29,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:29,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512905681] [2023-11-19 08:04:29,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512905681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:29,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:29,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:29,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28841225] [2023-11-19 08:04:29,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:29,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:04:29,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:29,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:04:29,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:29,817 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:30,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:30,043 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2023-11-19 08:04:30,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:30,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2023-11-19 08:04:30,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:30,046 INFO L225 Difference]: With dead ends: 105 [2023-11-19 08:04:30,046 INFO L226 Difference]: Without dead ends: 104 [2023-11-19 08:04:30,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:30,047 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 18 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:30,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 210 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:04:30,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-19 08:04:30,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 94. [2023-11-19 08:04:30,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 85 states have internal predecessors, (88), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:04:30,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2023-11-19 08:04:30,060 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 44 [2023-11-19 08:04:30,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:30,061 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 100 transitions. [2023-11-19 08:04:30,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:30,061 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2023-11-19 08:04:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 08:04:30,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:30,063 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:30,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:30,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 08:04:30,271 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:30,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:30,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2129819915, now seen corresponding path program 1 times [2023-11-19 08:04:30,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:30,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923603164] [2023-11-19 08:04:30,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:30,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:30,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:30,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296692570] [2023-11-19 08:04:30,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:30,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:30,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:30,287 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:30,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 08:04:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:30,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:04:30,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:30,410 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:30,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:30,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:30,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923603164] [2023-11-19 08:04:30,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:30,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296692570] [2023-11-19 08:04:30,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296692570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:30,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:30,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:30,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658944802] [2023-11-19 08:04:30,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:30,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:30,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:30,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:30,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:30,415 INFO L87 Difference]: Start difference. First operand 94 states and 100 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 08:04:30,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:30,450 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2023-11-19 08:04:30,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:30,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2023-11-19 08:04:30,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:30,452 INFO L225 Difference]: With dead ends: 102 [2023-11-19 08:04:30,452 INFO L226 Difference]: Without dead ends: 100 [2023-11-19 08:04:30,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:30,454 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 14 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:30,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 122 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:30,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-19 08:04:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2023-11-19 08:04:30,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 87 states have internal predecessors, (90), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:04:30,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 102 transitions. [2023-11-19 08:04:30,468 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 102 transitions. Word has length 46 [2023-11-19 08:04:30,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:30,468 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 102 transitions. [2023-11-19 08:04:30,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 08:04:30,469 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 102 transitions. [2023-11-19 08:04:30,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 08:04:30,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:30,470 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:30,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:30,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:30,691 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:30,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:30,692 INFO L85 PathProgramCache]: Analyzing trace with hash -896348294, now seen corresponding path program 1 times [2023-11-19 08:04:30,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:30,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227901023] [2023-11-19 08:04:30,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:30,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:30,718 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:30,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [9482576] [2023-11-19 08:04:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:30,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:30,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:30,722 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:30,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 08:04:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:30,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:04:30,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:30,888 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:30,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:30,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:30,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227901023] [2023-11-19 08:04:30,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:30,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9482576] [2023-11-19 08:04:30,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9482576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:30,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:30,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:30,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941341415] [2023-11-19 08:04:30,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:30,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:04:30,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:30,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:04:30,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:30,894 INFO L87 Difference]: Start difference. First operand 96 states and 102 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:30,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:30,996 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2023-11-19 08:04:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:30,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2023-11-19 08:04:30,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:30,998 INFO L225 Difference]: With dead ends: 102 [2023-11-19 08:04:30,999 INFO L226 Difference]: Without dead ends: 101 [2023-11-19 08:04:30,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:31,001 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 22 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:31,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 203 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:31,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-19 08:04:31,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2023-11-19 08:04:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 88 states have internal predecessors, (91), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:04:31,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 103 transitions. [2023-11-19 08:04:31,025 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 103 transitions. Word has length 45 [2023-11-19 08:04:31,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:31,026 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 103 transitions. [2023-11-19 08:04:31,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:31,026 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 103 transitions. [2023-11-19 08:04:31,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 08:04:31,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:31,027 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:31,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:31,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:31,243 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:31,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:31,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1942455123, now seen corresponding path program 1 times [2023-11-19 08:04:31,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:31,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058945497] [2023-11-19 08:04:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:31,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:31,256 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:31,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130944044] [2023-11-19 08:04:31,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:31,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:31,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:31,258 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:31,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-19 08:04:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:31,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:31,390 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:31,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:31,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:31,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058945497] [2023-11-19 08:04:31,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:31,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130944044] [2023-11-19 08:04:31,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130944044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:31,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:31,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:31,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967248841] [2023-11-19 08:04:31,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:31,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:31,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:31,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:31,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:31,394 INFO L87 Difference]: Start difference. First operand 97 states and 103 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 08:04:31,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:31,443 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2023-11-19 08:04:31,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:31,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2023-11-19 08:04:31,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:31,445 INFO L225 Difference]: With dead ends: 101 [2023-11-19 08:04:31,445 INFO L226 Difference]: Without dead ends: 100 [2023-11-19 08:04:31,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:31,446 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 13 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:31,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 139 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:31,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-19 08:04:31,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2023-11-19 08:04:31,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 89 states have internal predecessors, (92), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:04:31,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions. [2023-11-19 08:04:31,456 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 48 [2023-11-19 08:04:31,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:31,457 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions. [2023-11-19 08:04:31,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 08:04:31,458 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions. [2023-11-19 08:04:31,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 08:04:31,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:31,459 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:31,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:31,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-19 08:04:31,671 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:31,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:31,672 INFO L85 PathProgramCache]: Analyzing trace with hash -86566454, now seen corresponding path program 1 times [2023-11-19 08:04:31,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:31,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305534879] [2023-11-19 08:04:31,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:31,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:31,682 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:31,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851870653] [2023-11-19 08:04:31,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:31,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:31,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:31,685 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:31,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-19 08:04:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:31,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:31,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:31,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:31,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305534879] [2023-11-19 08:04:31,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:31,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851870653] [2023-11-19 08:04:31,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851870653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:31,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:31,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:31,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247927709] [2023-11-19 08:04:31,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:31,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:31,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:31,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:31,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:31,817 INFO L87 Difference]: Start difference. First operand 98 states and 104 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 08:04:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:31,885 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2023-11-19 08:04:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:31,886 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2023-11-19 08:04:31,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:31,887 INFO L225 Difference]: With dead ends: 100 [2023-11-19 08:04:31,887 INFO L226 Difference]: Without dead ends: 86 [2023-11-19 08:04:31,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:31,888 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:31,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 168 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:31,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-19 08:04:31,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-19 08:04:31,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 78 states have internal predecessors, (80), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2023-11-19 08:04:31,911 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 49 [2023-11-19 08:04:31,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:31,911 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2023-11-19 08:04:31,911 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 08:04:31,912 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2023-11-19 08:04:31,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 08:04:31,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:31,913 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:31,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:32,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-19 08:04:32,128 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:32,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:32,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1300297606, now seen corresponding path program 1 times [2023-11-19 08:04:32,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:32,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374271611] [2023-11-19 08:04:32,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:32,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:32,138 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:32,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1789407664] [2023-11-19 08:04:32,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:32,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:32,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:32,140 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:32,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-19 08:04:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:32,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 08:04:32,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:32,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:04:32,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:32,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374271611] [2023-11-19 08:04:32,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:32,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789407664] [2023-11-19 08:04:32,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789407664] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:32,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:04:32,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-19 08:04:32,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237768574] [2023-11-19 08:04:32,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:32,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 08:04:32,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:32,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 08:04:32,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:04:32,434 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand has 14 states, 13 states have (on average 4.769230769230769) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 08:04:32,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:32,607 INFO L93 Difference]: Finished difference Result 142 states and 148 transitions. [2023-11-19 08:04:32,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 08:04:32,607 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.769230769230769) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2023-11-19 08:04:32,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:32,609 INFO L225 Difference]: With dead ends: 142 [2023-11-19 08:04:32,609 INFO L226 Difference]: Without dead ends: 140 [2023-11-19 08:04:32,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-11-19 08:04:32,611 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 54 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:32,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 576 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:32,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-19 08:04:32,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 107. [2023-11-19 08:04:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 99 states have internal predecessors, (107), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 117 transitions. [2023-11-19 08:04:32,621 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 117 transitions. Word has length 48 [2023-11-19 08:04:32,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:32,621 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 117 transitions. [2023-11-19 08:04:32,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.769230769230769) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 08:04:32,622 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 117 transitions. [2023-11-19 08:04:32,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 08:04:32,623 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:32,623 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:32,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:32,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-19 08:04:32,839 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:32,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:32,840 INFO L85 PathProgramCache]: Analyzing trace with hash 249485729, now seen corresponding path program 1 times [2023-11-19 08:04:32,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:32,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336574571] [2023-11-19 08:04:32,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:32,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:32,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:32,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416665182] [2023-11-19 08:04:32,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:32,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:32,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:32,857 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:32,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-19 08:04:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:32,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 08:04:32,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 08:04:33,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:39,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:39,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336574571] [2023-11-19 08:04:39,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:39,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416665182] [2023-11-19 08:04:39,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416665182] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:39,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:04:39,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-19 08:04:39,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097221232] [2023-11-19 08:04:39,630 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:39,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:04:39,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:39,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:04:39,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=96, Unknown=3, NotChecked=0, Total=132 [2023-11-19 08:04:39,631 INFO L87 Difference]: Start difference. First operand 107 states and 117 transitions. Second operand has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 08:04:39,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:39,835 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2023-11-19 08:04:39,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:04:39,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50 [2023-11-19 08:04:39,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:39,836 INFO L225 Difference]: With dead ends: 133 [2023-11-19 08:04:39,837 INFO L226 Difference]: Without dead ends: 132 [2023-11-19 08:04:39,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=37, Invalid=116, Unknown=3, NotChecked=0, Total=156 [2023-11-19 08:04:39,838 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 171 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:39,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 242 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:04:39,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-19 08:04:39,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 108. [2023-11-19 08:04:39,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 83 states have (on average 1.3012048192771084) internal successors, (108), 100 states have internal predecessors, (108), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:39,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 118 transitions. [2023-11-19 08:04:39,847 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 118 transitions. Word has length 50 [2023-11-19 08:04:39,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:39,847 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 118 transitions. [2023-11-19 08:04:39,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 08:04:39,848 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 118 transitions. [2023-11-19 08:04:39,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 08:04:39,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:39,848 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:39,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-19 08:04:40,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-19 08:04:40,068 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:40,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:40,068 INFO L85 PathProgramCache]: Analyzing trace with hash -855876799, now seen corresponding path program 1 times [2023-11-19 08:04:40,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:40,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469671103] [2023-11-19 08:04:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:40,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:40,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:40,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987983835] [2023-11-19 08:04:40,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:40,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:40,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:40,077 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:40,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-19 08:04:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:40,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 08:04:40,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 08:04:40,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:43,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:43,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469671103] [2023-11-19 08:04:43,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:43,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987983835] [2023-11-19 08:04:43,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987983835] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:43,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:04:43,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-19 08:04:43,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69492379] [2023-11-19 08:04:43,863 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:43,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:04:43,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:43,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:04:43,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=95, Unknown=2, NotChecked=0, Total=132 [2023-11-19 08:04:43,864 INFO L87 Difference]: Start difference. First operand 108 states and 118 transitions. Second operand has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 08:04:44,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:44,069 INFO L93 Difference]: Finished difference Result 133 states and 141 transitions. [2023-11-19 08:04:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:04:44,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2023-11-19 08:04:44,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:44,071 INFO L225 Difference]: With dead ends: 133 [2023-11-19 08:04:44,071 INFO L226 Difference]: Without dead ends: 132 [2023-11-19 08:04:44,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=49, Invalid=131, Unknown=2, NotChecked=0, Total=182 [2023-11-19 08:04:44,072 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 136 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:44,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 224 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:04:44,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-19 08:04:44,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 109. [2023-11-19 08:04:44,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 84 states have (on average 1.2976190476190477) internal successors, (109), 101 states have internal predecessors, (109), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:44,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2023-11-19 08:04:44,082 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 51 [2023-11-19 08:04:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:44,082 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2023-11-19 08:04:44,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 08:04:44,083 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2023-11-19 08:04:44,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 08:04:44,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:44,084 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:44,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:44,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-19 08:04:44,304 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:44,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:44,305 INFO L85 PathProgramCache]: Analyzing trace with hash -762376797, now seen corresponding path program 1 times [2023-11-19 08:04:44,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:44,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564733879] [2023-11-19 08:04:44,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:44,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:44,312 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:44,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018637406] [2023-11-19 08:04:44,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:44,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:44,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:44,314 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:44,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-19 08:04:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:44,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 08:04:44,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 08:04:44,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:47,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:47,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564733879] [2023-11-19 08:04:47,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:47,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018637406] [2023-11-19 08:04:47,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018637406] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:47,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:04:47,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-19 08:04:47,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026684410] [2023-11-19 08:04:47,259 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:47,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 08:04:47,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:47,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:04:47,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=140, Unknown=1, NotChecked=0, Total=182 [2023-11-19 08:04:47,261 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:47,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:47,522 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2023-11-19 08:04:47,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:04:47,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2023-11-19 08:04:47,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:47,523 INFO L225 Difference]: With dead ends: 109 [2023-11-19 08:04:47,524 INFO L226 Difference]: Without dead ends: 106 [2023-11-19 08:04:47,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=68, Invalid=203, Unknown=1, NotChecked=0, Total=272 [2023-11-19 08:04:47,525 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 86 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:47,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 135 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:04:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-19 08:04:47,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2023-11-19 08:04:47,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 84 states have (on average 1.25) internal successors, (105), 98 states have internal predecessors, (105), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:47,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2023-11-19 08:04:47,534 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 52 [2023-11-19 08:04:47,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:47,535 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 115 transitions. [2023-11-19 08:04:47,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:47,535 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 115 transitions. [2023-11-19 08:04:47,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 08:04:47,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:47,536 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:47,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:47,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-19 08:04:47,743 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:47,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:47,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2136123267, now seen corresponding path program 1 times [2023-11-19 08:04:47,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:47,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587640644] [2023-11-19 08:04:47,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:47,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:47,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:47,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383557273] [2023-11-19 08:04:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:47,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:47,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:47,757 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:47,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-19 08:04:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:47,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 08:04:47,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:48,104 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 08:04:48,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:50,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:50,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587640644] [2023-11-19 08:04:50,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:50,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383557273] [2023-11-19 08:04:50,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383557273] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:50,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:04:50,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-19 08:04:50,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179514466] [2023-11-19 08:04:50,471 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:50,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 08:04:50,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:50,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:04:50,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=140, Unknown=1, NotChecked=0, Total=182 [2023-11-19 08:04:50,473 INFO L87 Difference]: Start difference. First operand 106 states and 115 transitions. Second operand has 10 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:50,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:50,727 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2023-11-19 08:04:50,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:04:50,727 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2023-11-19 08:04:50,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:50,729 INFO L225 Difference]: With dead ends: 152 [2023-11-19 08:04:50,729 INFO L226 Difference]: Without dead ends: 149 [2023-11-19 08:04:50,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=63, Invalid=208, Unknown=1, NotChecked=0, Total=272 [2023-11-19 08:04:50,730 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 145 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:50,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 296 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:04:50,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-19 08:04:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 135. [2023-11-19 08:04:50,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 112 states have (on average 1.2946428571428572) internal successors, (145), 126 states have internal predecessors, (145), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:04:50,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 157 transitions. [2023-11-19 08:04:50,741 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 157 transitions. Word has length 53 [2023-11-19 08:04:50,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:50,742 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 157 transitions. [2023-11-19 08:04:50,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:50,742 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 157 transitions. [2023-11-19 08:04:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 08:04:50,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:50,743 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:50,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:50,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-19 08:04:50,957 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:04:50,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:50,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1795312037, now seen corresponding path program 1 times [2023-11-19 08:04:50,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:50,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037909093] [2023-11-19 08:04:50,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:50,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:50,966 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:04:50,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918781923] [2023-11-19 08:04:50,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:50,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:50,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:50,968 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:51,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-19 08:04:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:51,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 08:04:51,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:51,287 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 08:04:51,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:59,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:59,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037909093] [2023-11-19 08:04:59,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:04:59,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918781923] [2023-11-19 08:04:59,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918781923] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:59,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:04:59,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-19 08:04:59,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129534068] [2023-11-19 08:04:59,878 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:59,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:04:59,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:59,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:04:59,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=117, Unknown=4, NotChecked=0, Total=156 [2023-11-19 08:04:59,879 INFO L87 Difference]: Start difference. First operand 135 states and 157 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 08:05:00,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:00,114 INFO L93 Difference]: Finished difference Result 155 states and 175 transitions. [2023-11-19 08:05:00,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:05:00,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2023-11-19 08:05:00,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:00,116 INFO L225 Difference]: With dead ends: 155 [2023-11-19 08:05:00,116 INFO L226 Difference]: Without dead ends: 154 [2023-11-19 08:05:00,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=39, Invalid=139, Unknown=4, NotChecked=0, Total=182 [2023-11-19 08:05:00,117 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 88 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:00,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 238 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:05:00,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-19 08:05:00,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 138. [2023-11-19 08:05:00,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 129 states have internal predecessors, (148), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:05:00,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 160 transitions. [2023-11-19 08:05:00,128 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 160 transitions. Word has length 54 [2023-11-19 08:05:00,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:00,129 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 160 transitions. [2023-11-19 08:05:00,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 08:05:00,129 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 160 transitions. [2023-11-19 08:05:00,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 08:05:00,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:00,130 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:00,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-19 08:05:00,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-19 08:05:00,350 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:05:00,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:00,351 INFO L85 PathProgramCache]: Analyzing trace with hash -179901499, now seen corresponding path program 1 times [2023-11-19 08:05:00,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:00,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845866097] [2023-11-19 08:05:00,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:00,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:00,358 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:05:00,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076752795] [2023-11-19 08:05:00,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:00,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:00,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:00,360 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:00,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-19 08:05:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:00,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 08:05:00,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 08:05:00,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:05,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:05,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845866097] [2023-11-19 08:05:05,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:05:05,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076752795] [2023-11-19 08:05:05,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076752795] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:05,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:05:05,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-19 08:05:05,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480526804] [2023-11-19 08:05:05,706 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:05,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:05:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:05:05,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=189, Unknown=2, NotChecked=0, Total=240 [2023-11-19 08:05:05,708 INFO L87 Difference]: Start difference. First operand 138 states and 160 transitions. Second operand has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:05:06,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:06,065 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2023-11-19 08:05:06,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 08:05:06,065 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2023-11-19 08:05:06,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:06,070 INFO L225 Difference]: With dead ends: 152 [2023-11-19 08:05:06,070 INFO L226 Difference]: Without dead ends: 151 [2023-11-19 08:05:06,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=71, Invalid=269, Unknown=2, NotChecked=0, Total=342 [2023-11-19 08:05:06,071 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 151 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:06,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 289 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:05:06,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-19 08:05:06,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 138. [2023-11-19 08:05:06,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 115 states have (on average 1.2782608695652173) internal successors, (147), 129 states have internal predecessors, (147), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:05:06,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 159 transitions. [2023-11-19 08:05:06,085 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 159 transitions. Word has length 55 [2023-11-19 08:05:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:06,086 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 159 transitions. [2023-11-19 08:05:06,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:05:06,086 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 159 transitions. [2023-11-19 08:05:06,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 08:05:06,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:06,087 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:06,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:06,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-19 08:05:06,310 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:05:06,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:06,311 INFO L85 PathProgramCache]: Analyzing trace with hash -2064143384, now seen corresponding path program 1 times [2023-11-19 08:05:06,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:06,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561127402] [2023-11-19 08:05:06,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:06,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:06,322 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:05:06,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [833732073] [2023-11-19 08:05:06,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:06,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:06,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:06,325 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:06,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-19 08:05:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:06,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:05:06,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:06,438 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:05:06,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:05:06,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:06,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561127402] [2023-11-19 08:05:06,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:05:06,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833732073] [2023-11-19 08:05:06,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833732073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:06,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:06,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:05:06,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289535490] [2023-11-19 08:05:06,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:06,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:05:06,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:06,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:05:06,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:06,442 INFO L87 Difference]: Start difference. First operand 138 states and 159 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:05:06,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:06,481 INFO L93 Difference]: Finished difference Result 160 states and 180 transitions. [2023-11-19 08:05:06,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:05:06,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2023-11-19 08:05:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:06,483 INFO L225 Difference]: With dead ends: 160 [2023-11-19 08:05:06,483 INFO L226 Difference]: Without dead ends: 59 [2023-11-19 08:05:06,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:05:06,485 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 24 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 175 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 [2023-11-19 08:05:06,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 175 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:06,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-19 08:05:06,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-19 08:05:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 51 states have internal predecessors, (51), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:05:06,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2023-11-19 08:05:06,493 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 58 [2023-11-19 08:05:06,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:06,493 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2023-11-19 08:05:06,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 08:05:06,493 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2023-11-19 08:05:06,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 08:05:06,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:06,494 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:06,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-19 08:05:06,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:06,711 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:05:06,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:06,712 INFO L85 PathProgramCache]: Analyzing trace with hash 971937622, now seen corresponding path program 1 times [2023-11-19 08:05:06,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:06,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972102856] [2023-11-19 08:05:06,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:06,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:06,719 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:05:06,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098526680] [2023-11-19 08:05:06,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:06,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:06,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:06,720 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:06,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-19 08:05:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:06,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 08:05:06,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:07,038 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 08:05:07,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:07,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:07,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972102856] [2023-11-19 08:05:07,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:05:07,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098526680] [2023-11-19 08:05:07,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098526680] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:07,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:05:07,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-19 08:05:07,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578436640] [2023-11-19 08:05:07,208 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:07,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:05:07,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:07,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:05:07,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:05:07,210 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 08:05:07,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:07,378 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2023-11-19 08:05:07,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:05:07,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 61 [2023-11-19 08:05:07,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:07,380 INFO L225 Difference]: With dead ends: 59 [2023-11-19 08:05:07,380 INFO L226 Difference]: Without dead ends: 58 [2023-11-19 08:05:07,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:05:07,381 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 34 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:07,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 136 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:05:07,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-19 08:05:07,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-19 08:05:07,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 47 states have (on average 1.0638297872340425) internal successors, (50), 50 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:05:07,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2023-11-19 08:05:07,388 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 61 [2023-11-19 08:05:07,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:07,388 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2023-11-19 08:05:07,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 08:05:07,389 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2023-11-19 08:05:07,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 08:05:07,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:07,389 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:07,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:07,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-19 08:05:07,607 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:05:07,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:07,608 INFO L85 PathProgramCache]: Analyzing trace with hash 65295417, now seen corresponding path program 1 times [2023-11-19 08:05:07,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:07,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199775126] [2023-11-19 08:05:07,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:07,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:07,615 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:05:07,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675555786] [2023-11-19 08:05:07,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:07,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:07,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:07,617 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:07,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-19 08:05:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:07,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 08:05:07,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:07,918 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 08:05:07,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:08,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:08,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199775126] [2023-11-19 08:05:08,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:05:08,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675555786] [2023-11-19 08:05:08,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675555786] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:08,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:05:08,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-19 08:05:08,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951560974] [2023-11-19 08:05:08,058 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:08,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:05:08,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:08,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:05:08,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:05:08,060 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 08:05:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:08,152 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2023-11-19 08:05:08,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:05:08,153 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 62 [2023-11-19 08:05:08,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:08,153 INFO L225 Difference]: With dead ends: 58 [2023-11-19 08:05:08,154 INFO L226 Difference]: Without dead ends: 57 [2023-11-19 08:05:08,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:05:08,156 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 20 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:08,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 145 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:05:08,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-19 08:05:08,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-19 08:05:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.0425531914893618) internal successors, (49), 49 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:05:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2023-11-19 08:05:08,165 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 62 [2023-11-19 08:05:08,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:08,166 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2023-11-19 08:05:08,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 08:05:08,166 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2023-11-19 08:05:08,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 08:05:08,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:08,167 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:08,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:08,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:08,383 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:05:08,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:08,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1675607013, now seen corresponding path program 1 times [2023-11-19 08:05:08,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:08,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958388554] [2023-11-19 08:05:08,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:08,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:08,390 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:05:08,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586765226] [2023-11-19 08:05:08,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:08,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:08,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:08,391 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:08,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-19 08:05:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:08,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 08:05:08,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:08,718 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 08:05:08,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:08,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:08,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958388554] [2023-11-19 08:05:08,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:05:08,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586765226] [2023-11-19 08:05:08,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586765226] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:08,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:05:08,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-19 08:05:08,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240220126] [2023-11-19 08:05:08,909 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:08,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:05:08,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:08,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:05:08,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:05:08,910 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 8 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 08:05:09,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:09,049 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2023-11-19 08:05:09,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:05:09,050 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 64 [2023-11-19 08:05:09,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:09,051 INFO L225 Difference]: With dead ends: 57 [2023-11-19 08:05:09,051 INFO L226 Difference]: Without dead ends: 56 [2023-11-19 08:05:09,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:05:09,052 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 28 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:09,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 111 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:05:09,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-19 08:05:09,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-19 08:05:09,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 48 states have internal predecessors, (48), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:05:09,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2023-11-19 08:05:09,060 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 64 [2023-11-19 08:05:09,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:09,063 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2023-11-19 08:05:09,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 08:05:09,063 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2023-11-19 08:05:09,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 08:05:09,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:09,067 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:09,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:09,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:09,279 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:05:09,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:09,280 INFO L85 PathProgramCache]: Analyzing trace with hash -404209638, now seen corresponding path program 1 times [2023-11-19 08:05:09,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:09,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347321307] [2023-11-19 08:05:09,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:09,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:09,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:05:09,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1619276397] [2023-11-19 08:05:09,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:09,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:09,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:09,290 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:09,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-19 08:05:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:09,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:05:09,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:05:09,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:13,712 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:05:13,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:13,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347321307] [2023-11-19 08:05:13,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:05:13,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619276397] [2023-11-19 08:05:13,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619276397] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:13,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:05:13,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-19 08:05:13,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517675331] [2023-11-19 08:05:13,713 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:13,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:05:13,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:13,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:05:13,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2023-11-19 08:05:13,714 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 08:05:13,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:13,765 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2023-11-19 08:05:13,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:05:13,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 65 [2023-11-19 08:05:13,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:13,766 INFO L225 Difference]: With dead ends: 56 [2023-11-19 08:05:13,767 INFO L226 Difference]: Without dead ends: 55 [2023-11-19 08:05:13,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=15, Invalid=25, Unknown=2, NotChecked=0, Total=42 [2023-11-19 08:05:13,767 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 10 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:13,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 137 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:13,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-19 08:05:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-19 08:05:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.0) internal successors, (47), 47 states have internal predecessors, (47), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:05:13,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2023-11-19 08:05:13,774 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 65 [2023-11-19 08:05:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:13,774 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2023-11-19 08:05:13,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 08:05:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2023-11-19 08:05:13,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 08:05:13,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:13,776 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:13,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:13,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:13,976 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-19 08:05:13,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:13,977 INFO L85 PathProgramCache]: Analyzing trace with hash 354403325, now seen corresponding path program 1 times [2023-11-19 08:05:13,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:13,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871663640] [2023-11-19 08:05:13,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:13,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:13,986 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:05:13,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075032158] [2023-11-19 08:05:13,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:13,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:13,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:13,992 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:13,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-19 08:05:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:14,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:05:14,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:14,115 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:05:14,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 08:05:18,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:18,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871663640] [2023-11-19 08:05:18,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:05:18,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075032158] [2023-11-19 08:05:18,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075032158] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:18,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:05:18,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-19 08:05:18,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402889737] [2023-11-19 08:05:18,219 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:18,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:05:18,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:18,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:05:18,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2023-11-19 08:05:18,221 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 08:05:18,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:18,289 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2023-11-19 08:05:18,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:05:18,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 66 [2023-11-19 08:05:18,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:18,291 INFO L225 Difference]: With dead ends: 55 [2023-11-19 08:05:18,291 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 08:05:18,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=15, Invalid=25, Unknown=2, NotChecked=0, Total=42 [2023-11-19 08:05:18,291 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 4 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:18,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 174 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:05:18,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 08:05:18,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 08:05:18,292 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) [2023-11-19 08:05:18,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 08:05:18,292 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2023-11-19 08:05:18,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:18,293 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:05:18,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 08:05:18,293 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:05:18,293 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 08:05:18,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 68 remaining) [2023-11-19 08:05:18,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 68 remaining) [2023-11-19 08:05:18,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 68 remaining) [2023-11-19 08:05:18,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 68 remaining) [2023-11-19 08:05:18,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 68 remaining) [2023-11-19 08:05:18,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 68 remaining) [2023-11-19 08:05:18,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 68 remaining) [2023-11-19 08:05:18,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 68 remaining) [2023-11-19 08:05:18,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 68 remaining) [2023-11-19 08:05:18,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 68 remaining) [2023-11-19 08:05:18,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 68 remaining) [2023-11-19 08:05:18,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 68 remaining) [2023-11-19 08:05:18,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 68 remaining) [2023-11-19 08:05:18,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 68 remaining) [2023-11-19 08:05:18,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 68 remaining) [2023-11-19 08:05:18,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 68 remaining) [2023-11-19 08:05:18,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 68 remaining) [2023-11-19 08:05:18,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 68 remaining) [2023-11-19 08:05:18,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 68 remaining) [2023-11-19 08:05:18,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 68 remaining) [2023-11-19 08:05:18,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 68 remaining) [2023-11-19 08:05:18,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 68 remaining) [2023-11-19 08:05:18,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 68 remaining) [2023-11-19 08:05:18,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 68 remaining) [2023-11-19 08:05:18,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 68 remaining) [2023-11-19 08:05:18,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 68 remaining) [2023-11-19 08:05:18,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 68 remaining) [2023-11-19 08:05:18,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 68 remaining) [2023-11-19 08:05:18,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 68 remaining) [2023-11-19 08:05:18,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 68 remaining) [2023-11-19 08:05:18,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 68 remaining) [2023-11-19 08:05:18,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 68 remaining) [2023-11-19 08:05:18,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 68 remaining) [2023-11-19 08:05:18,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 68 remaining) [2023-11-19 08:05:18,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 68 remaining) [2023-11-19 08:05:18,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 68 remaining) [2023-11-19 08:05:18,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 68 remaining) [2023-11-19 08:05:18,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 68 remaining) [2023-11-19 08:05:18,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 68 remaining) [2023-11-19 08:05:18,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 68 remaining) [2023-11-19 08:05:18,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 68 remaining) [2023-11-19 08:05:18,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 68 remaining) [2023-11-19 08:05:18,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 68 remaining) [2023-11-19 08:05:18,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 68 remaining) [2023-11-19 08:05:18,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 68 remaining) [2023-11-19 08:05:18,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 68 remaining) [2023-11-19 08:05:18,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 68 remaining) [2023-11-19 08:05:18,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 68 remaining) [2023-11-19 08:05:18,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 68 remaining) [2023-11-19 08:05:18,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 68 remaining) [2023-11-19 08:05:18,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 68 remaining) [2023-11-19 08:05:18,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 68 remaining) [2023-11-19 08:05:18,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 68 remaining) [2023-11-19 08:05:18,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 68 remaining) [2023-11-19 08:05:18,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 68 remaining) [2023-11-19 08:05:18,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 68 remaining) [2023-11-19 08:05:18,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 68 remaining) [2023-11-19 08:05:18,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 68 remaining) [2023-11-19 08:05:18,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 68 remaining) [2023-11-19 08:05:18,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 68 remaining) [2023-11-19 08:05:18,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 68 remaining) [2023-11-19 08:05:18,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 68 remaining) [2023-11-19 08:05:18,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 68 remaining) [2023-11-19 08:05:18,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 68 remaining) [2023-11-19 08:05:18,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 68 remaining) [2023-11-19 08:05:18,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 68 remaining) [2023-11-19 08:05:18,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 68 remaining) [2023-11-19 08:05:18,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 68 remaining) [2023-11-19 08:05:18,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f0544c-5705-4fd7-9df3-66348e0705a6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0