/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/bitvector/sum02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-30 22:38:21,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-30 22:38:21,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-30 22:38:21,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-30 22:38:21,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-30 22:38:21,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-30 22:38:21,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-30 22:38:21,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-30 22:38:21,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-30 22:38:21,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-30 22:38:21,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-30 22:38:21,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-30 22:38:21,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-30 22:38:21,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-30 22:38:21,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-30 22:38:21,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-30 22:38:21,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-30 22:38:21,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-30 22:38:21,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-30 22:38:21,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-30 22:38:21,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-30 22:38:21,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-30 22:38:21,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-30 22:38:21,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-30 22:38:21,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-30 22:38:21,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-30 22:38:21,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-30 22:38:21,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-30 22:38:21,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-30 22:38:21,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-30 22:38:21,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-30 22:38:21,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-30 22:38:21,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-30 22:38:21,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-30 22:38:21,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-30 22:38:21,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-30 22:38:21,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-30 22:38:21,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-30 22:38:21,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-30 22:38:21,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-30 22:38:21,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-30 22:38:21,729 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-30 22:38:21,755 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-30 22:38:21,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-30 22:38:21,756 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-30 22:38:21,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-30 22:38:21,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-30 22:38:21,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-30 22:38:21,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-30 22:38:21,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-30 22:38:21,758 INFO L138 SettingsManager]: * Use SBE=true [2023-03-30 22:38:21,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-30 22:38:21,759 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-30 22:38:21,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-30 22:38:21,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-30 22:38:21,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-30 22:38:21,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-30 22:38:21,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-30 22:38:21,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-30 22:38:21,760 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-30 22:38:21,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-30 22:38:21,761 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-30 22:38:21,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-30 22:38:21,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-30 22:38:21,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-30 22:38:21,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-30 22:38:21,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:38:21,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-30 22:38:21,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-30 22:38:21,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-30 22:38:21,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-30 22:38:21,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-30 22:38:21,765 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-30 22:38:21,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-30 22:38:21,765 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-30 22:38:21,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-30 22:38:21,765 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-30 22:38:21,765 INFO L138 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-30 22:38:21,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-30 22:38:21,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-30 22:38:21,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-30 22:38:21,980 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-30 22:38:21,981 INFO L275 PluginConnector]: CDTParser initialized [2023-03-30 22:38:21,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/sum02-1.c [2023-03-30 22:38:23,147 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-30 22:38:23,297 INFO L351 CDTParser]: Found 1 translation units. [2023-03-30 22:38:23,298 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/sum02-1.c [2023-03-30 22:38:23,303 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af870373/523d729e668f4f19ab8d937c26b25d9f/FLAGb07bfa3b4 [2023-03-30 22:38:23,314 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af870373/523d729e668f4f19ab8d937c26b25d9f [2023-03-30 22:38:23,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-30 22:38:23,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-30 22:38:23,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-30 22:38:23,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-30 22:38:23,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-30 22:38:23,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626caf3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23, skipping insertion in model container [2023-03-30 22:38:23,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-30 22:38:23,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-30 22:38:23,416 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/sum02-1.c[624,637] [2023-03-30 22:38:23,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:38:23,435 INFO L203 MainTranslator]: Completed pre-run [2023-03-30 22:38:23,444 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/sum02-1.c[624,637] [2023-03-30 22:38:23,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:38:23,457 INFO L208 MainTranslator]: Completed translation [2023-03-30 22:38:23,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23 WrapperNode [2023-03-30 22:38:23,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-30 22:38:23,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-30 22:38:23,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-30 22:38:23,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-30 22:38:23,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,478 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-30 22:38:23,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-30 22:38:23,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-30 22:38:23,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-30 22:38:23,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23" (1/1) ... [2023-03-30 22:38:23,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:38:23,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:38:23,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-30 22:38:23,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-30 22:38:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-30 22:38:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-30 22:38:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-30 22:38:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-30 22:38:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-30 22:38:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-30 22:38:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-30 22:38:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-30 22:38:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-30 22:38:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-30 22:38:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-03-30 22:38:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-30 22:38:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-30 22:38:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-30 22:38:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-30 22:38:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-30 22:38:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-30 22:38:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-30 22:38:23,611 INFO L236 CfgBuilder]: Building ICFG [2023-03-30 22:38:23,612 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-30 22:38:23,748 INFO L277 CfgBuilder]: Performing block encoding [2023-03-30 22:38:23,752 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-30 22:38:23,752 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-30 22:38:23,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:38:23 BoogieIcfgContainer [2023-03-30 22:38:23,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-30 22:38:23,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-30 22:38:23,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-30 22:38:23,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-30 22:38:23,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.03 10:38:23" (1/3) ... [2023-03-30 22:38:23,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d35dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:38:23, skipping insertion in model container [2023-03-30 22:38:23,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:38:23" (2/3) ... [2023-03-30 22:38:23,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d35dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:38:23, skipping insertion in model container [2023-03-30 22:38:23,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:38:23" (3/3) ... [2023-03-30 22:38:23,759 INFO L112 eAbstractionObserver]: Analyzing ICFG sum02-1.c [2023-03-30 22:38:23,771 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-30 22:38:23,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-30 22:38:23,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-30 22:38:23,819 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=LoopsAndPotentialCycles, 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;@27c15e5c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-30 22:38:23,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-30 22:38:23,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-30 22:38:23,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-03-30 22:38:23,828 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:38:23,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:38:23,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:38:23,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:38:23,832 INFO L85 PathProgramCache]: Analyzing trace with hash 129727778, now seen corresponding path program 1 times [2023-03-30 22:38:23,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:38:23,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704112269] [2023-03-30 22:38:23,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:38:23,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:38:23,905 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:38:23,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599530667] [2023-03-30 22:38:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:38:23,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:38:23,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:38:23,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:38:23,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-30 22:38:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:38:23,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-30 22:38:23,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:38:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:38:23,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-30 22:38:23,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:38:23,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704112269] [2023-03-30 22:38:23,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:38:23,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599530667] [2023-03-30 22:38:23,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599530667] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:38:23,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:38:23,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-30 22:38:23,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783085921] [2023-03-30 22:38:23,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:38:23,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-30 22:38:23,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:38:24,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-30 22:38:24,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-30 22:38:24,008 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-30 22:38:24,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:38:24,028 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-03-30 22:38:24,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-30 22:38:24,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-03-30 22:38:24,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:38:24,034 INFO L225 Difference]: With dead ends: 32 [2023-03-30 22:38:24,034 INFO L226 Difference]: Without dead ends: 15 [2023-03-30 22:38:24,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-30 22:38:24,038 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-30 22:38:24,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:38:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-03-30 22:38:24,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-03-30 22:38:24,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-30 22:38:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-03-30 22:38:24,061 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2023-03-30 22:38:24,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:38:24,061 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-03-30 22:38:24,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-30 22:38:24,062 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-03-30 22:38:24,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-03-30 22:38:24,062 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:38:24,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:38:24,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-30 22:38:24,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-03-30 22:38:24,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:38:24,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:38:24,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1245890656, now seen corresponding path program 1 times [2023-03-30 22:38:24,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:38:24,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107330169] [2023-03-30 22:38:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:38:24,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:38:24,281 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:38:24,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673975976] [2023-03-30 22:38:24,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:38:24,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:38:24,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:38:24,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:38:24,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-30 22:38:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:38:24,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2023-03-30 22:38:24,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:38:24,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:38:24,398 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:38:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:38:27,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:38:27,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107330169] [2023-03-30 22:38:27,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:38:27,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673975976] [2023-03-30 22:38:27,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673975976] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:38:27,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:38:27,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-03-30 22:38:27,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167491755] [2023-03-30 22:38:27,698 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:38:27,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-30 22:38:27,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:38:27,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-30 22:38:27,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2023-03-30 22:38:27,700 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-30 22:38:27,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:38:27,772 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2023-03-30 22:38:27,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-30 22:38:27,773 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-03-30 22:38:27,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:38:27,773 INFO L225 Difference]: With dead ends: 21 [2023-03-30 22:38:27,773 INFO L226 Difference]: Without dead ends: 16 [2023-03-30 22:38:27,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=29, Invalid=80, Unknown=1, NotChecked=0, Total=110 [2023-03-30 22:38:27,775 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-30 22:38:27,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 67 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:38:27,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-03-30 22:38:27,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-03-30 22:38:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-30 22:38:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-03-30 22:38:27,778 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2023-03-30 22:38:27,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:38:27,778 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-03-30 22:38:27,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-30 22:38:27,778 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-03-30 22:38:27,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-03-30 22:38:27,779 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:38:27,779 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:38:27,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-03-30 22:38:27,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-03-30 22:38:27,980 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:38:27,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:38:27,980 INFO L85 PathProgramCache]: Analyzing trace with hash 136592414, now seen corresponding path program 2 times [2023-03-30 22:38:27,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:38:27,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964469395] [2023-03-30 22:38:27,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:38:27,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:38:27,994 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:38:27,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [872514483] [2023-03-30 22:38:27,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-30 22:38:27,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:38:27,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:38:27,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:38:28,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process