/usr/lib/jvm/java-1.11.0-openjdk-amd64/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 --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 12:49:10,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 12:49:10,432 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 12:49:10,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 12:49:10,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 12:49:10,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 12:49:10,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 12:49:10,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 12:49:10,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 12:49:10,459 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 12:49:10,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 12:49:10,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 12:49:10,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 12:49:10,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 12:49:10,461 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 12:49:10,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 12:49:10,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 12:49:10,462 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 12:49:10,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 12:49:10,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 12:49:10,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 12:49:10,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 12:49:10,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 12:49:10,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 12:49:10,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 12:49:10,464 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 12:49:10,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 12:49:10,464 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 12:49:10,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 12:49:10,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 12:49:10,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 12:49:10,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 12:49:10,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 12:49:10,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 12:49:10,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 12:49:10,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 12:49:10,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 12:49:10,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 12:49:10,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 12:49:10,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 12:49:10,467 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 12:49:10,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 12:49:10,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 12:49:10,468 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:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 12:49:10,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 12:49:10,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 12:49:10,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 12:49:10,719 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 12:49:10,719 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 12:49:10,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-3.i [2023-12-19 12:49:11,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 12:49:12,077 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 12:49:12,077 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-3.i [2023-12-19 12:49:12,091 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce5d287c/9954718662814a0daebebcda198cf258/FLAG795e788de [2023-12-19 12:49:12,102 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce5d287c/9954718662814a0daebebcda198cf258 [2023-12-19 12:49:12,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 12:49:12,105 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 12:49:12,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 12:49:12,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 12:49:12,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 12:49:12,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fdb5cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12, skipping insertion in model container [2023-12-19 12:49:12,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,168 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 12:49:12,312 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-3.i[915,928] [2023-12-19 12:49:12,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 12:49:12,470 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 12:49:12,483 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-3.i[915,928] [2023-12-19 12:49:12,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 12:49:12,571 INFO L206 MainTranslator]: Completed translation [2023-12-19 12:49:12,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12 WrapperNode [2023-12-19 12:49:12,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 12:49:12,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 12:49:12,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 12:49:12,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 12:49:12,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,690 INFO L138 Inliner]: procedures = 26, calls = 69, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 504 [2023-12-19 12:49:12,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 12:49:12,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 12:49:12,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 12:49:12,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 12:49:12,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,797 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 12:49:12,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 12:49:12,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 12:49:12,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 12:49:12,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 12:49:12,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (1/1) ... [2023-12-19 12:49:12,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 12:49:12,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:12,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 12:49:12,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 12:49:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 12:49:12,910 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 12:49:12,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 12:49:12,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 12:49:12,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 12:49:12,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 12:49:13,041 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 12:49:13,044 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 12:49:13,723 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 12:49:13,764 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 12:49:13,764 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 12:49:13,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 12:49:13 BoogieIcfgContainer [2023-12-19 12:49:13,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 12:49:13,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 12:49:13,767 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 12:49:13,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 12:49:13,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 12:49:12" (1/3) ... [2023-12-19 12:49:13,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d4fb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 12:49:13, skipping insertion in model container [2023-12-19 12:49:13,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:49:12" (2/3) ... [2023-12-19 12:49:13,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d4fb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 12:49:13, skipping insertion in model container [2023-12-19 12:49:13,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 12:49:13" (3/3) ... [2023-12-19 12:49:13,773 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-3.i [2023-12-19 12:49:13,787 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 12:49:13,787 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 12:49:13,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 12:49:13,847 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;@163f1291, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 12:49:13,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 12:49:13,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 134 states have (on average 1.5522388059701493) internal successors, (208), 135 states have internal predecessors, (208), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-19 12:49:13,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-12-19 12:49:13,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:13,879 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:13,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:13,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:13,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1751269388, now seen corresponding path program 1 times [2023-12-19 12:49:13,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:13,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202798580] [2023-12-19 12:49:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:13,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:14,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:49:14,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202798580] [2023-12-19 12:49:14,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 12:49:14,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234719918] [2023-12-19 12:49:14,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:14,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:14,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:14,221 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) [2023-12-19 12:49:14,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 12:49:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:14,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 12:49:14,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:49:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2023-12-19 12:49:14,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 12:49:14,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234719918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:49:14,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:49:14,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 12:49:14,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548427051] [2023-12-19 12:49:14,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:49:14,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 12:49:14,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:49:14,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 12:49:14,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 12:49:14,637 INFO L87 Difference]: Start difference. First operand has 193 states, 134 states have (on average 1.5522388059701493) internal successors, (208), 135 states have internal predecessors, (208), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-19 12:49:14,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:49:14,721 INFO L93 Difference]: Finished difference Result 383 states and 694 transitions. [2023-12-19 12:49:14,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 12:49:14,724 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) Word has length 368 [2023-12-19 12:49:14,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:49:14,736 INFO L225 Difference]: With dead ends: 383 [2023-12-19 12:49:14,736 INFO L226 Difference]: Without dead ends: 191 [2023-12-19 12:49:14,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 12:49:14,749 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:49:14,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 311 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:49:14,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-12-19 12:49:14,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2023-12-19 12:49:14,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 133 states have (on average 1.518796992481203) internal successors, (202), 133 states have internal predecessors, (202), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-19 12:49:14,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 314 transitions. [2023-12-19 12:49:14,827 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 314 transitions. Word has length 368 [2023-12-19 12:49:14,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:49:14,829 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 314 transitions. [2023-12-19 12:49:14,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-19 12:49:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 314 transitions. [2023-12-19 12:49:14,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-12-19 12:49:14,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:14,842 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:14,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 12:49:15,055 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 [2023-12-19 12:49:15,056 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:15,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:15,057 INFO L85 PathProgramCache]: Analyzing trace with hash 890874680, now seen corresponding path program 1 times [2023-12-19 12:49:15,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:15,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273835179] [2023-12-19 12:49:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:15,167 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 12:49:15,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [494368614] [2023-12-19 12:49:15,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:15,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:15,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:15,176 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) [2023-12-19 12:49:15,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 12:49:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:15,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 12:49:15,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:49:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-12-19 12:49:15,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 12:49:15,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:49:15,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273835179] [2023-12-19 12:49:15,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 12:49:15,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494368614] [2023-12-19 12:49:15,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494368614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:49:15,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:49:15,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 12:49:15,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275091803] [2023-12-19 12:49:15,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:49:15,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 12:49:15,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:49:15,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 12:49:15,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 12:49:15,618 INFO L87 Difference]: Start difference. First operand 191 states and 314 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-19 12:49:16,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:49:16,107 INFO L93 Difference]: Finished difference Result 863 states and 1407 transitions. [2023-12-19 12:49:16,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 12:49:16,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 368 [2023-12-19 12:49:16,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:49:16,113 INFO L225 Difference]: With dead ends: 863 [2023-12-19 12:49:16,113 INFO L226 Difference]: Without dead ends: 673 [2023-12-19 12:49:16,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-19 12:49:16,115 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 729 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 12:49:16,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 1790 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 12:49:16,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-19 12:49:16,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 373. [2023-12-19 12:49:16,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 311 states have (on average 1.617363344051447) internal successors, (503), 312 states have internal predecessors, (503), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-19 12:49:16,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 621 transitions. [2023-12-19 12:49:16,161 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 621 transitions. Word has length 368 [2023-12-19 12:49:16,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:49:16,163 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 621 transitions. [2023-12-19 12:49:16,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-19 12:49:16,164 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 621 transitions. [2023-12-19 12:49:16,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-12-19 12:49:16,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:16,170 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:16,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 12:49:16,377 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 [2023-12-19 12:49:16,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:16,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:16,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1109729398, now seen corresponding path program 1 times [2023-12-19 12:49:16,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:16,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768299527] [2023-12-19 12:49:16,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:16,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:16,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 12:49:16,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841557550] [2023-12-19 12:49:16,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:16,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:16,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:16,470 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) [2023-12-19 12:49:16,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 12:49:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:16,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 12:49:16,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:49:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-12-19 12:49:16,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 12:49:16,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:49:16,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768299527] [2023-12-19 12:49:16,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 12:49:16,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841557550] [2023-12-19 12:49:16,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841557550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:49:16,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:49:16,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 12:49:16,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609981583] [2023-12-19 12:49:16,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:49:16,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 12:49:16,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:49:16,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 12:49:16,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 12:49:16,755 INFO L87 Difference]: Start difference. First operand 373 states and 621 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-19 12:49:17,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:49:17,015 INFO L93 Difference]: Finished difference Result 964 states and 1594 transitions. [2023-12-19 12:49:17,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 12:49:17,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 368 [2023-12-19 12:49:17,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:49:17,024 INFO L225 Difference]: With dead ends: 964 [2023-12-19 12:49:17,024 INFO L226 Difference]: Without dead ends: 592 [2023-12-19 12:49:17,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 12:49:17,028 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 378 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 12:49:17,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 838 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 12:49:17,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-12-19 12:49:17,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 373. [2023-12-19 12:49:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 311 states have (on average 1.617363344051447) internal successors, (503), 312 states have internal predecessors, (503), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-19 12:49:17,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 621 transitions. [2023-12-19 12:49:17,079 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 621 transitions. Word has length 368 [2023-12-19 12:49:17,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:49:17,081 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 621 transitions. [2023-12-19 12:49:17,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-19 12:49:17,081 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 621 transitions. [2023-12-19 12:49:17,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-19 12:49:17,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:17,086 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:17,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 12:49:17,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:17,289 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:17,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:17,289 INFO L85 PathProgramCache]: Analyzing trace with hash -455089684, now seen corresponding path program 1 times [2023-12-19 12:49:17,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:17,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582164813] [2023-12-19 12:49:17,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:17,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:17,351 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 12:49:17,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473794628] [2023-12-19 12:49:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:17,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:17,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:17,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 12:49:17,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 12:49:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:17,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 12:49:17,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:49:17,990 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1065 proven. 150 refuted. 0 times theorem prover too weak. 4945 trivial. 0 not checked. [2023-12-19 12:49:17,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 12:49:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 15 proven. 150 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-12-19 12:49:18,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:49:18,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582164813] [2023-12-19 12:49:18,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 12:49:18,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473794628] [2023-12-19 12:49:18,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473794628] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 12:49:18,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 12:49:18,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-19 12:49:18,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393281280] [2023-12-19 12:49:18,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 12:49:18,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 12:49:18,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:49:18,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 12:49:18,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 12:49:18,321 INFO L87 Difference]: Start difference. First operand 373 states and 621 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 3 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2023-12-19 12:49:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:49:18,638 INFO L93 Difference]: Finished difference Result 749 states and 1242 transitions. [2023-12-19 12:49:18,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 12:49:18,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 3 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 369 [2023-12-19 12:49:18,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:49:18,642 INFO L225 Difference]: With dead ends: 749 [2023-12-19 12:49:18,642 INFO L226 Difference]: Without dead ends: 377 [2023-12-19 12:49:18,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-19 12:49:18,643 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 277 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 12:49:18,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 578 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 12:49:18,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-19 12:49:18,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 373. [2023-12-19 12:49:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 310 states have (on average 1.6) internal successors, (496), 311 states have internal predecessors, (496), 59 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-19 12:49:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 614 transitions. [2023-12-19 12:49:18,666 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 614 transitions. Word has length 369 [2023-12-19 12:49:18,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:49:18,666 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 614 transitions. [2023-12-19 12:49:18,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 3 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2023-12-19 12:49:18,667 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 614 transitions. [2023-12-19 12:49:18,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-19 12:49:18,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:18,672 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:18,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 12:49:18,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:18,879 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:18,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:18,880 INFO L85 PathProgramCache]: Analyzing trace with hash 377037548, now seen corresponding path program 1 times [2023-12-19 12:49:18,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:18,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838226902] [2023-12-19 12:49:18,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:18,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:18,933 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 12:49:18,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1710269814] [2023-12-19 12:49:18,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:18,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:18,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:18,935 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 12:49:18,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 12:49:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:19,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 12:49:19,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:49:19,851 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3182 proven. 231 refuted. 0 times theorem prover too weak. 2747 trivial. 0 not checked. [2023-12-19 12:49:19,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 12:49:20,346 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 93 proven. 234 refuted. 0 times theorem prover too weak. 5833 trivial. 0 not checked. [2023-12-19 12:49:20,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:49:20,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838226902] [2023-12-19 12:49:20,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 12:49:20,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710269814] [2023-12-19 12:49:20,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710269814] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 12:49:20,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 12:49:20,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-19 12:49:20,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177673866] [2023-12-19 12:49:20,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 12:49:20,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 12:49:20,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:49:20,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 12:49:20,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-12-19 12:49:20,349 INFO L87 Difference]: Start difference. First operand 373 states and 614 transitions. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 5 states have call successors, (99), 3 states have call predecessors, (99), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) [2023-12-19 12:49:20,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:49:20,870 INFO L93 Difference]: Finished difference Result 761 states and 1240 transitions. [2023-12-19 12:49:20,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 12:49:20,871 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 5 states have call successors, (99), 3 states have call predecessors, (99), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) Word has length 369 [2023-12-19 12:49:20,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:49:20,873 INFO L225 Difference]: With dead ends: 761 [2023-12-19 12:49:20,873 INFO L226 Difference]: Without dead ends: 389 [2023-12-19 12:49:20,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=352, Unknown=0, NotChecked=0, Total=552 [2023-12-19 12:49:20,875 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 641 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 12:49:20,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 706 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 12:49:20,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-12-19 12:49:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2023-12-19 12:49:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 319 states have (on average 1.5642633228840126) internal successors, (499), 320 states have internal predecessors, (499), 59 states have call successors, (59), 6 states have call predecessors, (59), 6 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-19 12:49:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 617 transitions. [2023-12-19 12:49:20,897 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 617 transitions. Word has length 369 [2023-12-19 12:49:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:49:20,898 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 617 transitions. [2023-12-19 12:49:20,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 5 states have call successors, (99), 3 states have call predecessors, (99), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) [2023-12-19 12:49:20,898 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 617 transitions. [2023-12-19 12:49:20,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-12-19 12:49:20,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:20,902 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:20,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 12:49:21,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:21,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:21,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:21,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1372812825, now seen corresponding path program 1 times [2023-12-19 12:49:21,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:21,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245655994] [2023-12-19 12:49:21,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:21,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:21,161 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 12:49:21,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573818038] [2023-12-19 12:49:21,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:21,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:21,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:21,163 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 12:49:21,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 12:49:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:21,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 12:49:21,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:49:21,722 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1729 proven. 138 refuted. 0 times theorem prover too weak. 4293 trivial. 0 not checked. [2023-12-19 12:49:21,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 12:49:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 27 proven. 138 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-12-19 12:49:21,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:49:21,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245655994] [2023-12-19 12:49:21,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 12:49:21,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573818038] [2023-12-19 12:49:21,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573818038] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 12:49:21,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 12:49:21,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-19 12:49:21,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783883259] [2023-12-19 12:49:21,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 12:49:21,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 12:49:21,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:49:21,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 12:49:21,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-19 12:49:21,946 INFO L87 Difference]: Start difference. First operand 385 states and 617 transitions. Second operand has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 3 states have call successors, (102), 2 states have call predecessors, (102), 4 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) [2023-12-19 12:49:22,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:49:22,462 INFO L93 Difference]: Finished difference Result 1078 states and 1725 transitions. [2023-12-19 12:49:22,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 12:49:22,463 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 3 states have call successors, (102), 2 states have call predecessors, (102), 4 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) Word has length 370 [2023-12-19 12:49:22,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:49:22,467 INFO L225 Difference]: With dead ends: 1078 [2023-12-19 12:49:22,467 INFO L226 Difference]: Without dead ends: 694 [2023-12-19 12:49:22,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 731 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-12-19 12:49:22,470 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 914 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 12:49:22,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 762 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 12:49:22,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2023-12-19 12:49:22,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 683. [2023-12-19 12:49:22,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 598 states have (on average 1.5735785953177257) internal successors, (941), 601 states have internal predecessors, (941), 73 states have call successors, (73), 11 states have call predecessors, (73), 11 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-19 12:49:22,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1087 transitions. [2023-12-19 12:49:22,496 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1087 transitions. Word has length 370 [2023-12-19 12:49:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:49:22,497 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 1087 transitions. [2023-12-19 12:49:22,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 3 states have call successors, (102), 2 states have call predecessors, (102), 4 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) [2023-12-19 12:49:22,497 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1087 transitions. [2023-12-19 12:49:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-12-19 12:49:22,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:22,500 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:22,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 12:49:22,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:22,708 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:22,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:22,709 INFO L85 PathProgramCache]: Analyzing trace with hash -472554341, now seen corresponding path program 1 times [2023-12-19 12:49:22,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:22,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850877541] [2023-12-19 12:49:22,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:22,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:22,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 12:49:22,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2127142847] [2023-12-19 12:49:22,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:22,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:22,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:22,748 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 12:49:22,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 12:49:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:23,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-19 12:49:23,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:49:23,988 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 2013 proven. 132 refuted. 0 times theorem prover too weak. 4015 trivial. 0 not checked. [2023-12-19 12:49:23,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 12:49:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 33 proven. 132 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-12-19 12:49:24,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:49:24,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850877541] [2023-12-19 12:49:24,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 12:49:24,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127142847] [2023-12-19 12:49:24,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127142847] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 12:49:24,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 12:49:24,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2023-12-19 12:49:24,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438976989] [2023-12-19 12:49:24,736 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 12:49:24,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-19 12:49:24,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:49:24,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-19 12:49:24,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2023-12-19 12:49:24,738 INFO L87 Difference]: Start difference. First operand 683 states and 1087 transitions. Second operand has 25 states, 25 states have (on average 6.64) internal successors, (166), 25 states have internal predecessors, (166), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2023-12-19 12:49:30,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:49:30,663 INFO L93 Difference]: Finished difference Result 9759 states and 15417 transitions. [2023-12-19 12:49:30,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-12-19 12:49:30,669 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 6.64) internal successors, (166), 25 states have internal predecessors, (166), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 370 [2023-12-19 12:49:30,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:49:30,707 INFO L225 Difference]: With dead ends: 9759 [2023-12-19 12:49:30,707 INFO L226 Difference]: Without dead ends: 9077 [2023-12-19 12:49:30,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 723 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2777 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1662, Invalid=6710, Unknown=0, NotChecked=0, Total=8372 [2023-12-19 12:49:30,716 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 3782 mSDsluCounter, 8272 mSDsCounter, 0 mSdLazyCounter, 5132 mSolverCounterSat, 839 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3806 SdHoareTripleChecker+Valid, 8704 SdHoareTripleChecker+Invalid, 5971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 839 IncrementalHoareTripleChecker+Valid, 5132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-19 12:49:30,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3806 Valid, 8704 Invalid, 5971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [839 Valid, 5132 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-19 12:49:30,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9077 states. [2023-12-19 12:49:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9077 to 1991. [2023-12-19 12:49:30,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1798 states have (on average 1.5189098998887653) internal successors, (2731), 1804 states have internal predecessors, (2731), 161 states have call successors, (161), 31 states have call predecessors, (161), 31 states have return successors, (161), 155 states have call predecessors, (161), 161 states have call successors, (161) [2023-12-19 12:49:30,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 3053 transitions. [2023-12-19 12:49:30,867 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 3053 transitions. Word has length 370 [2023-12-19 12:49:30,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:49:30,868 INFO L495 AbstractCegarLoop]: Abstraction has 1991 states and 3053 transitions. [2023-12-19 12:49:30,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.64) internal successors, (166), 25 states have internal predecessors, (166), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2023-12-19 12:49:30,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 3053 transitions. [2023-12-19 12:49:30,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-12-19 12:49:30,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:30,872 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:30,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 12:49:31,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:31,081 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:31,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:31,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1006756763, now seen corresponding path program 1 times [2023-12-19 12:49:31,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:31,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845916638] [2023-12-19 12:49:31,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:31,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:31,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 12:49:31,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [400441193] [2023-12-19 12:49:31,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:31,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:31,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:31,153 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 12:49:31,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 12:49:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:31,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-19 12:49:31,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:49:32,117 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 2895 proven. 105 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2023-12-19 12:49:32,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 12:49:32,726 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 60 proven. 105 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-12-19 12:49:32,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:49:32,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845916638] [2023-12-19 12:49:32,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 12:49:32,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400441193] [2023-12-19 12:49:32,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400441193] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 12:49:32,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 12:49:32,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-12-19 12:49:32,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841196349] [2023-12-19 12:49:32,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 12:49:32,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-19 12:49:32,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:49:32,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-19 12:49:32,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-12-19 12:49:32,729 INFO L87 Difference]: Start difference. First operand 1991 states and 3053 transitions. Second operand has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2023-12-19 12:49:34,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:49:34,925 INFO L93 Difference]: Finished difference Result 9017 states and 13771 transitions. [2023-12-19 12:49:34,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-19 12:49:34,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 370 [2023-12-19 12:49:34,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:49:34,948 INFO L225 Difference]: With dead ends: 9017 [2023-12-19 12:49:34,949 INFO L226 Difference]: Without dead ends: 6931 [2023-12-19 12:49:34,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 763 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=425, Invalid=1135, Unknown=0, NotChecked=0, Total=1560 [2023-12-19 12:49:34,954 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 2374 mSDsluCounter, 3570 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 3861 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-19 12:49:34,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 3861 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-19 12:49:34,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6931 states. [2023-12-19 12:49:35,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6931 to 1911. [2023-12-19 12:49:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1670 states have (on average 1.5) internal successors, (2505), 1674 states have internal predecessors, (2505), 203 states have call successors, (203), 37 states have call predecessors, (203), 37 states have return successors, (203), 199 states have call predecessors, (203), 203 states have call successors, (203) [2023-12-19 12:49:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2911 transitions. [2023-12-19 12:49:35,140 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2911 transitions. Word has length 370 [2023-12-19 12:49:35,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:49:35,141 INFO L495 AbstractCegarLoop]: Abstraction has 1911 states and 2911 transitions. [2023-12-19 12:49:35,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2023-12-19 12:49:35,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2911 transitions. [2023-12-19 12:49:35,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-12-19 12:49:35,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:35,146 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:35,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 12:49:35,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 12:49:35,352 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:35,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1522752075, now seen corresponding path program 1 times [2023-12-19 12:49:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:35,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032537904] [2023-12-19 12:49:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:35,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:35,389 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 12:49:35,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978411285] [2023-12-19 12:49:35,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:35,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:35,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:35,390 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 12:49:35,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 12:49:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:35,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 12:49:35,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:49:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1676 proven. 288 refuted. 0 times theorem prover too weak. 4196 trivial. 0 not checked. [2023-12-19 12:49:36,324 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 12:49:37,095 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 36 proven. 291 refuted. 0 times theorem prover too weak. 5833 trivial. 0 not checked. [2023-12-19 12:49:37,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:49:37,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032537904] [2023-12-19 12:49:37,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 12:49:37,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978411285] [2023-12-19 12:49:37,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978411285] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 12:49:37,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 12:49:37,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-12-19 12:49:37,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978319780] [2023-12-19 12:49:37,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 12:49:37,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-19 12:49:37,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:49:37,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-19 12:49:37,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-12-19 12:49:37,101 INFO L87 Difference]: Start difference. First operand 1911 states and 2911 transitions. Second operand has 24 states, 24 states have (on average 6.375) internal successors, (153), 24 states have internal predecessors, (153), 5 states have call successors, (107), 3 states have call predecessors, (107), 7 states have return successors, (108), 5 states have call predecessors, (108), 5 states have call successors, (108) [2023-12-19 12:49:39,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:49:39,030 INFO L93 Difference]: Finished difference Result 7970 states and 12254 transitions. [2023-12-19 12:49:39,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-19 12:49:39,030 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.375) internal successors, (153), 24 states have internal predecessors, (153), 5 states have call successors, (107), 3 states have call predecessors, (107), 7 states have return successors, (108), 5 states have call predecessors, (108), 5 states have call successors, (108) Word has length 371 [2023-12-19 12:49:39,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:49:39,050 INFO L225 Difference]: With dead ends: 7970 [2023-12-19 12:49:39,051 INFO L226 Difference]: Without dead ends: 6191 [2023-12-19 12:49:39,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=768, Invalid=2202, Unknown=0, NotChecked=0, Total=2970 [2023-12-19 12:49:39,057 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 2660 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 2222 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 12:49:39,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2666 Valid, 2222 Invalid, 2309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 12:49:39,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6191 states. [2023-12-19 12:49:39,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6191 to 2012. [2023-12-19 12:49:39,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 1762 states have (on average 1.5085130533484676) internal successors, (2658), 1766 states have internal predecessors, (2658), 203 states have call successors, (203), 46 states have call predecessors, (203), 46 states have return successors, (203), 199 states have call predecessors, (203), 203 states have call successors, (203) [2023-12-19 12:49:39,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 3064 transitions. [2023-12-19 12:49:39,205 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 3064 transitions. Word has length 371 [2023-12-19 12:49:39,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:49:39,205 INFO L495 AbstractCegarLoop]: Abstraction has 2012 states and 3064 transitions. [2023-12-19 12:49:39,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.375) internal successors, (153), 24 states have internal predecessors, (153), 5 states have call successors, (107), 3 states have call predecessors, (107), 7 states have return successors, (108), 5 states have call predecessors, (108), 5 states have call successors, (108) [2023-12-19 12:49:39,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 3064 transitions. [2023-12-19 12:49:39,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-12-19 12:49:39,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:39,208 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:39,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 12:49:39,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:39,416 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:39,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:39,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1507233357, now seen corresponding path program 1 times [2023-12-19 12:49:39,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:39,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932146909] [2023-12-19 12:49:39,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:39,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:39,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 12:49:39,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061850975] [2023-12-19 12:49:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:39,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:39,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:39,466 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 12:49:39,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 12:49:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:39,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-19 12:49:39,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:49:40,617 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3235 proven. 330 refuted. 0 times theorem prover too weak. 2595 trivial. 0 not checked. [2023-12-19 12:49:40,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 12:49:41,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 147 proven. 339 refuted. 0 times theorem prover too weak. 5674 trivial. 0 not checked. [2023-12-19 12:49:41,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:49:41,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932146909] [2023-12-19 12:49:41,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 12:49:41,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061850975] [2023-12-19 12:49:41,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061850975] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 12:49:41,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 12:49:41,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2023-12-19 12:49:41,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428758907] [2023-12-19 12:49:41,543 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 12:49:41,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-19 12:49:41,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:49:41,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-19 12:49:41,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-12-19 12:49:41,546 INFO L87 Difference]: Start difference. First operand 2012 states and 3064 transitions. Second operand has 25 states, 24 states have (on average 6.583333333333333) internal successors, (158), 23 states have internal predecessors, (158), 6 states have call successors, (100), 4 states have call predecessors, (100), 9 states have return successors, (101), 6 states have call predecessors, (101), 6 states have call successors, (101) [2023-12-19 12:49:42,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:49:42,734 INFO L93 Difference]: Finished difference Result 4571 states and 6980 transitions. [2023-12-19 12:49:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-19 12:49:42,735 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.583333333333333) internal successors, (158), 23 states have internal predecessors, (158), 6 states have call successors, (100), 4 states have call predecessors, (100), 9 states have return successors, (101), 6 states have call predecessors, (101), 6 states have call successors, (101) Word has length 371 [2023-12-19 12:49:42,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:49:42,743 INFO L225 Difference]: With dead ends: 4571 [2023-12-19 12:49:42,743 INFO L226 Difference]: Without dead ends: 2705 [2023-12-19 12:49:42,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 716 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=570, Invalid=1410, Unknown=0, NotChecked=0, Total=1980 [2023-12-19 12:49:42,747 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1126 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 12:49:42,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 1561 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 12:49:42,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2023-12-19 12:49:42,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2100. [2023-12-19 12:49:42,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 1846 states have (on average 1.5016251354279524) internal successors, (2772), 1850 states have internal predecessors, (2772), 203 states have call successors, (203), 50 states have call predecessors, (203), 50 states have return successors, (203), 199 states have call predecessors, (203), 203 states have call successors, (203) [2023-12-19 12:49:42,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 3178 transitions. [2023-12-19 12:49:42,866 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 3178 transitions. Word has length 371 [2023-12-19 12:49:42,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:49:42,867 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 3178 transitions. [2023-12-19 12:49:42,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.583333333333333) internal successors, (158), 23 states have internal predecessors, (158), 6 states have call successors, (100), 4 states have call predecessors, (100), 9 states have return successors, (101), 6 states have call predecessors, (101), 6 states have call successors, (101) [2023-12-19 12:49:42,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 3178 transitions. [2023-12-19 12:49:42,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-12-19 12:49:42,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:49:42,870 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:49:42,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 12:49:43,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 12:49:43,077 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:49:43,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:49:43,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1308422835, now seen corresponding path program 1 times [2023-12-19 12:49:43,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:49:43,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413001857] [2023-12-19 12:49:43,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:43,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:49:43,138 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 12:49:43,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777579178] [2023-12-19 12:49:43,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:49:43,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:49:43,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:49:43,150 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 12:49:43,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 12:49:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:49:43,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 64 conjunts are in the unsatisfiable core [2023-12-19 12:49:43,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:50:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 4101 proven. 633 refuted. 0 times theorem prover too weak. 1426 trivial. 0 not checked. [2023-12-19 12:50:13,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 12:50:32,812 WARN L854 $PredicateComparison]: unable to prove that (or (= c_~last_1_var_1_32~0 |c_ULTIMATE.start_step_~stepLocal_6~0#1|) (let ((.cse6 (mod c_~var_1_21~0 65536)) (.cse1 (mod c_~var_1_54~0 256))) (let ((.cse21 (mod c_~var_1_4~0 256)) (.cse8 (+ .cse1 1)) (.cse24 (div .cse6 c_~var_1_8~0)) (.cse13 (mod c_~var_1_60~0 256))) (let ((.cse12 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) (.cse14 (+ 1 .cse13)) (.cse11 (not (= .cse24 .cse13))) (.cse15 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (< .cse6 v_~var_1_32~0_25) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) (.cse16 (< .cse1 .cse13)) (.cse0 (< 0 (+ c_~var_1_8~0 1))) (.cse9 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse7 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (< .cse6 v_~var_1_32~0_25) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse5 (< c_~var_1_8~0 0)) (.cse3 (not (= .cse24 .cse1))) (.cse10 (< .cse13 .cse8)) (.cse17 (* 65535 .cse21))) (and (or (let ((.cse2 (mod (+ c_~var_1_33~0 .cse17 (* c_~var_1_9~0 65535)) 65536))) (let ((.cse4 (< .cse2 32768))) (and (or (and (or .cse0 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse2))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse2))) .cse3)) (or .cse4 (and (or .cse5 (and (forall ((v_~var_1_32~0_25 Int)) (or (< 0 (+ v_~var_1_32~0_25 1)) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= .cse1 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse7)) (or .cse0 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse8)) (< (+ 65536 v_~var_1_32~0_25) .cse2) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse9 (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))))))) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse2))) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse6 v_~var_1_32~0_25) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse2))) .cse3) .cse5)) .cse10) (or (and (or (and .cse11 (or (and .cse12 (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) .cse4) (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) (or .cse4 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse2) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) .cse0) (or (and .cse11 (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) .cse15 (forall ((v_~var_1_32~0_25 Int)) (or (< 0 (+ v_~var_1_32~0_25 1)) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1) .cse13)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)))) .cse4) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) .cse5)) .cse16)))) (let ((.cse20 (div c_~var_1_9~0 .cse21)) (.cse19 (+ c_~var_1_9~0 1)) (.cse18 (= (mod c_~var_1_9~0 .cse21) 0))) (and (or .cse18 (< 0 .cse19) (not (= (+ 1 .cse20) c_~var_1_8~0))) (or (not (= c_~var_1_8~0 .cse20)) (and (<= .cse19 0) (not .cse18)))))) (or (not (= c_~var_1_8~0 (div 0 .cse21))) (let ((.cse23 (mod (+ c_~var_1_33~0 .cse17) 65536))) (let ((.cse22 (< .cse23 32768))) (and (or (and (or .cse0 (and .cse11 (or .cse22 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) .cse12)) (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) (or .cse22 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse23) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))))) (or (and .cse11 (or (and .cse15 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse23) (< 0 (+ v_~var_1_32~0_25 1)) (not (= (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1) .cse13)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse23) (< .cse6 v_~var_1_32~0_25) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) .cse22) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) .cse5)) .cse16) (or (and (or (and (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse23) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse23) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse3) .cse0) (or .cse22 (and (or .cse0 (and (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse8)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse23) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse9 .cse3)) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse23) (< .cse6 v_~var_1_32~0_25) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse23) (< 0 (+ v_~var_1_32~0_25 1)) (not (= .cse1 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse3 .cse7) .cse5))) (or .cse5 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse23) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse3 (forall ((v_~var_1_32~0_25 Int)) (or (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse23) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0)))))))) .cse10)))))))))) is different from false [2023-12-19 12:51:15,494 WARN L293 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 12:51:59,273 WARN L293 SmtUtils]: Spent 13.66s on a formula simplification that was a NOOP. DAG size: 199 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 12:52:34,683 WARN L293 SmtUtils]: Spent 16.61s on a formula simplification that was a NOOP. DAG size: 200 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 12:53:18,558 WARN L293 SmtUtils]: Spent 14.41s on a formula simplification that was a NOOP. DAG size: 200 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 12:54:28,497 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 (mod c_~var_1_4~0 256)) (.cse0 (mod c_~var_1_21~0 65536))) (or (= .cse0 0) (= c_~var_1_9~0 0) (< c_~var_1_9~0 0) (= (+ c_~last_1_var_1_32~0 .cse1 1) 0) (let ((.cse37 (div .cse0 c_~var_1_8~0))) (let ((.cse4 (mod c_~var_1_54~0 256)) (.cse38 (< .cse37 0)) (.cse39 (< .cse37 |c_ULTIMATE.start_step_~stepLocal_14~0#1|))) (let ((.cse19 (or .cse38 .cse39)) (.cse22 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse41 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< v_~var_1_32~0_25 0) (< .cse41 0) (< .cse41 |c_ULTIMATE.start_step_~stepLocal_14~0#1|))))) (.cse24 (+ |c_ULTIMATE.start_step_~stepLocal_14~0#1| 1)) (.cse8 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse40 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< v_~var_1_32~0_25 0) (< .cse40 0) (< .cse0 v_~var_1_32~0_25) (< .cse40 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse40))))) (.cse5 (or (< .cse4 .cse37) .cse38 .cse39)) (.cse12 (< 255 |c_ULTIMATE.start_step_~stepLocal_14~0#1|)) (.cse17 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (< .cse0 v_~var_1_32~0_25) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse14 (< 0 (+ c_~var_1_8~0 1))) (.cse15 (+ .cse4 1)) (.cse16 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse13 (not (= .cse37 .cse4))) (.cse11 (< c_~var_1_8~0 0)) (.cse18 (< 254 .cse4)) (.cse26 (* 65535 .cse1))) (and (or (not (= c_~var_1_8~0 (div 0 .cse1))) (let ((.cse3 (mod (+ c_~var_1_33~0 .cse26) 65536))) (let ((.cse10 (< .cse3 32768))) (and (or (and (forall ((v_~var_1_32~0_25 Int)) (let ((.cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse2 0) (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse3) (< .cse2 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse2)))) .cse5 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse6 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< .cse6 0) (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse3) (< .cse6 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse6)))) (or (and (forall ((v_~var_1_32~0_25 Int)) (let ((.cse7 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (< .cse7 0) (< .cse0 v_~var_1_32~0_25) (< .cse7 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse7)))) .cse8 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse9 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (or (< (+ 65536 v_~var_1_32~0_25) .cse3) (< 0 (+ v_~var_1_32~0_25 1)) (< .cse9 0) (< .cse9 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse9) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))))) .cse10)) .cse11) (or .cse12 (and (or (and (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse3) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse3) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse13) .cse14) (or .cse10 (and (or .cse14 (and (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse3) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse15)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse16)) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (< .cse0 v_~var_1_32~0_25) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse3) (< 0 (+ v_~var_1_32~0_25 1)) (not (= .cse4 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse17) .cse11))) (or .cse11 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse3) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse13 (forall ((v_~var_1_32~0_25 Int)) (or (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse3) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0)))))))) .cse18) (or .cse14 (and .cse19 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse20 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< .cse20 0) (< v_~var_1_32~0_25 .cse3) (< .cse20 |c_ULTIMATE.start_step_~stepLocal_14~0#1|)))) (or .cse10 (and (forall ((v_~var_1_32~0_25 Int)) (let ((.cse21 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (< .cse21 0) (< .cse21 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse21)))) .cse22)) (or .cse10 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse23 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< (+ 65536 v_~var_1_32~0_25) .cse3) (< .cse23 1) (< .cse23 .cse24) (< .cse15 .cse23) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))))) (forall ((v_~var_1_32~0_25 Int)) (let ((.cse25 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse25 0) (< v_~var_1_32~0_25 .cse3) (< .cse25 |c_ULTIMATE.start_step_~stepLocal_14~0#1|)))))))))) (or (not (= c_~var_1_8~0 (div c_~var_1_9~0 .cse1))) (let ((.cse28 (mod (+ c_~var_1_33~0 .cse26 (* c_~var_1_9~0 65535)) 65536))) (let ((.cse30 (< .cse28 32768))) (and (or .cse14 (and .cse19 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse27 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse27 0) (< .cse27 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< v_~var_1_32~0_25 .cse28)))) (forall ((v_~var_1_32~0_25 Int)) (let ((.cse29 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< .cse29 0) (< .cse29 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< v_~var_1_32~0_25 .cse28)))) (or .cse30 (and .cse22 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse31 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse31 0) (< .cse31 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< (+ 65536 v_~var_1_32~0_25) .cse28) (< .cse4 .cse31)))))) (or (forall ((v_~var_1_32~0_25 Int)) (let ((.cse32 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< .cse32 1) (< .cse32 .cse24) (< (+ 65536 v_~var_1_32~0_25) .cse28) (< .cse15 .cse32) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)))) .cse30))) (or .cse11 (and (forall ((v_~var_1_32~0_25 Int)) (let ((.cse33 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< .cse33 0) (< .cse0 v_~var_1_32~0_25) (< .cse33 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< v_~var_1_32~0_25 .cse28) (< .cse4 .cse33)))) (or (and (forall ((v_~var_1_32~0_25 Int)) (let ((.cse34 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (or (< 0 (+ v_~var_1_32~0_25 1)) (< .cse34 0) (< (+ 65536 v_~var_1_32~0_25) .cse28) (< .cse34 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse34) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)))) (forall ((v_~var_1_32~0_25 Int)) (let ((.cse35 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse35 0) (< .cse0 v_~var_1_32~0_25) (< .cse35 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< (+ 65536 v_~var_1_32~0_25) .cse28) (< .cse4 .cse35)))) .cse8) .cse30) .cse5 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse36 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse36 0) (< .cse0 v_~var_1_32~0_25) (< .cse36 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< v_~var_1_32~0_25 .cse28) (< .cse4 .cse36)))))) (or .cse12 (and (or .cse14 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse28))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse28))) .cse13)) (or .cse30 (and (or .cse11 (and (forall ((v_~var_1_32~0_25 Int)) (or (< 0 (+ v_~var_1_32~0_25 1)) (< (+ 65536 v_~var_1_32~0_25) .cse28) (not (= .cse4 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (< (+ 65536 v_~var_1_32~0_25) .cse28) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse17)) (or .cse14 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse15)) (< (+ 65536 v_~var_1_32~0_25) .cse28) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse16 (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse28) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))))))) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse28))) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse0 v_~var_1_32~0_25) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse28))) .cse13) .cse11)) .cse18))))))))))) is different from true [2023-12-19 12:55:42,876 WARN L293 SmtUtils]: Spent 16.84s on a formula simplification that was a NOOP. DAG size: 185 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 12:56:37,563 WARN L293 SmtUtils]: Spent 18.76s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 12:57:16,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:57:16,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413001857] [2023-12-19 12:57:16,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 12:57:16,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777579178] [2023-12-19 12:57:16,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777579178] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 12:57:16,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-19 12:57:16,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2023-12-19 12:57:16,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609016861] [2023-12-19 12:57:16,500 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-19 12:57:16,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-19 12:57:16,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:57:16,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-19 12:57:16,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1380, Unknown=20, NotChecked=158, Total=1806 [2023-12-19 12:57:16,502 INFO L87 Difference]: Start difference. First operand 2100 states and 3178 transitions. Second operand has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 27 states have internal predecessors, (127), 7 states have call successors, (56), 7 states have call predecessors, (56), 12 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-19 12:57:41,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-19 12:58:00,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-19 12:58:25,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-19 12:58:26,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-19 12:58:31,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-19 12:58:35,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-19 12:58:53,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-19 12:58:58,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-19 12:58:58,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 139 [2023-12-19 12:58:58,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 363.4s TimeCoverageRelationStatistics Valid=422, Invalid=2534, Unknown=22, NotChecked=214, Total=3192 [2023-12-19 12:58:58,591 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 24 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 37 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2023-12-19 12:58:58,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 123 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 334 Invalid, 7 Unknown, 0 Unchecked, 35.1s Time] [2023-12-19 12:58:58,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 12:58:58,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 12:58:58,792 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:365) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Broken pipe at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2023-12-19 12:58:58,797 INFO L158 Benchmark]: Toolchain (without parser) took 586691.49ms. Allocated memory was 182.5MB in the beginning and 557.8MB in the end (delta: 375.4MB). Free memory was 132.0MB in the beginning and 433.9MB in the end (delta: -301.9MB). Peak memory consumption was 74.7MB. Max. memory is 8.0GB. [2023-12-19 12:58:58,797 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 12:58:58,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.37ms. Allocated memory is still 182.5MB. Free memory was 132.0MB in the beginning and 107.6MB in the end (delta: 24.5MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-19 12:58:58,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.72ms. Allocated memory is still 182.5MB. Free memory was 107.6MB in the beginning and 98.5MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-19 12:58:58,798 INFO L158 Benchmark]: Boogie Preprocessor took 154.12ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 98.5MB in the beginning and 188.4MB in the end (delta: -89.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 12:58:58,798 INFO L158 Benchmark]: RCFGBuilder took 918.57ms. Allocated memory is still 226.5MB. Free memory was 188.4MB in the beginning and 130.7MB in the end (delta: 57.7MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. [2023-12-19 12:58:58,798 INFO L158 Benchmark]: TraceAbstraction took 585029.32ms. Allocated memory was 226.5MB in the beginning and 557.8MB in the end (delta: 331.4MB). Free memory was 130.2MB in the beginning and 433.9MB in the end (delta: -303.8MB). Peak memory consumption was 27.6MB. Max. memory is 8.0GB. [2023-12-19 12:58:58,799 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 465.37ms. Allocated memory is still 182.5MB. Free memory was 132.0MB in the beginning and 107.6MB in the end (delta: 24.5MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 118.72ms. Allocated memory is still 182.5MB. Free memory was 107.6MB in the beginning and 98.5MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 154.12ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 98.5MB in the beginning and 188.4MB in the end (delta: -89.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * RCFGBuilder took 918.57ms. Allocated memory is still 226.5MB. Free memory was 188.4MB in the beginning and 130.7MB in the end (delta: 57.7MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. * TraceAbstraction took 585029.32ms. Allocated memory was 226.5MB in the beginning and 557.8MB in the end (delta: 331.4MB). Free memory was 130.2MB in the beginning and 433.9MB in the end (delta: -303.8MB). Peak memory consumption was 27.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...