/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_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-68.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 07:20:25,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 07:20:25,732 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 07:20:25,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 07:20:25,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 07:20:25,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 07:20:25,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 07:20:25,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 07:20:25,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 07:20:25,769 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 07:20:25,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 07:20:25,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 07:20:25,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 07:20:25,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 07:20:25,772 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 07:20:25,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 07:20:25,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 07:20:25,773 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 07:20:25,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 07:20:25,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 07:20:25,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 07:20:25,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 07:20:25,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 07:20:25,774 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 07:20:25,774 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 07:20:25,775 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 07:20:25,775 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 07:20:25,775 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 07:20:25,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 07:20:25,775 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 07:20:25,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 07:20:25,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 07:20:25,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 07:20:25,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 07:20:25,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 07:20:25,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 07:20:25,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 07:20:25,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 07:20:25,778 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 07:20:25,778 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 07:20:25,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 07:20:25,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 07:20:25,778 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 07:20:25,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 07:20:25,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 07:20:25,779 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 07:20:25,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 07:20:26,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 07:20:26,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 07:20:26,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 07:20:26,035 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 07:20:26,035 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 07:20:26,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-68.i [2023-12-24 07:20:27,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 07:20:27,483 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 07:20:27,484 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-68.i [2023-12-24 07:20:27,497 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85cf03897/6c66d14eb8f14b0da618bd7bbcda5147/FLAG1cbd5ed5c [2023-12-24 07:20:27,513 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85cf03897/6c66d14eb8f14b0da618bd7bbcda5147 [2023-12-24 07:20:27,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 07:20:27,518 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 07:20:27,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 07:20:27,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 07:20:27,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 07:20:27,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:27,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31421a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27, skipping insertion in model container [2023-12-24 07:20:27,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:27,583 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 07:20:27,717 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-68.i[916,929] [2023-12-24 07:20:27,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 07:20:27,886 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 07:20:27,898 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-68.i[916,929] [2023-12-24 07:20:27,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 07:20:27,992 INFO L206 MainTranslator]: Completed translation [2023-12-24 07:20:27,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27 WrapperNode [2023-12-24 07:20:27,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 07:20:27,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 07:20:27,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 07:20:27,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 07:20:28,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,070 INFO L138 Inliner]: procedures = 27, calls = 73, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 386 [2023-12-24 07:20:28,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 07:20:28,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 07:20:28,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 07:20:28,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 07:20:28,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,113 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]. [2023-12-24 07:20:28,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,177 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 07:20:28,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 07:20:28,178 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 07:20:28,178 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 07:20:28,179 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (1/1) ... [2023-12-24 07:20:28,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 07:20:28,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 07:20:28,221 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) [2023-12-24 07:20:28,232 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 [2023-12-24 07:20:28,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 07:20:28,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 07:20:28,250 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 07:20:28,251 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 07:20:28,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 07:20:28,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 07:20:28,345 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 07:20:28,349 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 07:21:32,671 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 07:21:32,734 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 07:21:32,734 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 07:21:32,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:21:32 BoogieIcfgContainer [2023-12-24 07:21:32,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 07:21:32,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 07:21:32,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 07:21:32,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 07:21:32,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 07:20:27" (1/3) ... [2023-12-24 07:21:32,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21273975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:21:32, skipping insertion in model container [2023-12-24 07:21:32,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:20:27" (2/3) ... [2023-12-24 07:21:32,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21273975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:21:32, skipping insertion in model container [2023-12-24 07:21:32,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:21:32" (3/3) ... [2023-12-24 07:21:32,742 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-68.i [2023-12-24 07:21:32,758 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 07:21:32,759 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 07:21:32,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 07:21:32,819 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@38e253fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 07:21:32,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 07:21:32,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 101 states have (on average 1.495049504950495) internal successors, (151), 102 states have internal predecessors, (151), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-24 07:21:32,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2023-12-24 07:21:32,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 07:21:32,847 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 07:21:32,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 07:21:32,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 07:21:32,855 INFO L85 PathProgramCache]: Analyzing trace with hash -768036707, now seen corresponding path program 1 times [2023-12-24 07:21:32,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 07:21:32,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883075005] [2023-12-24 07:21:32,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 07:21:32,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 07:21:32,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 07:21:32,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 07:21:32,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 07:21:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 07:21:35,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 07:21:36,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 07:21:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 2870 proven. 0 refuted. 0 times theorem prover too weak. 4210 trivial. 0 not checked. [2023-12-24 07:21:36,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 07:21:36,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 07:21:36,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883075005] [2023-12-24 07:21:36,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883075005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 07:21:36,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 07:21:36,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 07:21:36,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193569940] [2023-12-24 07:21:36,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 07:21:36,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 07:21:36,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 07:21:36,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 07:21:36,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 07:21:36,170 INFO L87 Difference]: Start difference. First operand has 164 states, 101 states have (on average 1.495049504950495) internal successors, (151), 102 states have internal predecessors, (151), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2023-12-24 07:21:43,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:21:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 07:21:43,935 INFO L93 Difference]: Finished difference Result 324 states and 598 transitions. [2023-12-24 07:21:45,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 07:21:45,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 375 [2023-12-24 07:21:45,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 07:21:45,284 INFO L225 Difference]: With dead ends: 324 [2023-12-24 07:21:45,284 INFO L226 Difference]: Without dead ends: 161 [2023-12-24 07:21:45,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 07:21:45,292 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-24 07:21:45,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2023-12-24 07:21:45,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-24 07:21:45,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-12-24 07:21:45,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 99 states have (on average 1.4444444444444444) internal successors, (143), 99 states have internal predecessors, (143), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-24 07:21:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 263 transitions. [2023-12-24 07:21:45,356 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 263 transitions. Word has length 375 [2023-12-24 07:21:45,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 07:21:45,357 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 263 transitions. [2023-12-24 07:21:45,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2023-12-24 07:21:45,357 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 263 transitions. [2023-12-24 07:21:45,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2023-12-24 07:21:45,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 07:21:45,365 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 07:21:45,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-24 07:21:45,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 07:21:45,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 07:21:45,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 07:21:45,567 INFO L85 PathProgramCache]: Analyzing trace with hash 519158453, now seen corresponding path program 1 times [2023-12-24 07:21:45,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 07:21:45,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635136678] [2023-12-24 07:21:45,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 07:21:45,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 07:21:45,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 07:21:45,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 07:21:45,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 07:21:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 07:21:48,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 07:21:48,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 07:22:25,844 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 3593 proven. 234 refuted. 0 times theorem prover too weak. 3253 trivial. 0 not checked. [2023-12-24 07:22:25,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 07:22:33,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 07:22:33,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635136678] [2023-12-24 07:22:33,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635136678] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 07:22:33,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [669562745] [2023-12-24 07:22:33,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 07:22:33,599 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 07:22:33,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 07:22:33,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 07:22:33,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-24 07:22:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 07:22:34,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 07:22:34,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 07:22:36,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-12-24 07:22:36,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 07:22:36,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [669562745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 07:22:36,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 07:22:36,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-24 07:22:36,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62980708] [2023-12-24 07:22:36,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 07:22:36,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 07:22:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 07:22:36,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 07:22:36,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-24 07:22:36,566 INFO L87 Difference]: Start difference. First operand 161 states and 263 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-12-24 07:22:38,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:22:40,445 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-12-24 07:22:40,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 993 GetRequests, 982 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-24 07:22:40,447 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 42 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-24 07:22:40,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 479 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-24 07:22:40,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2023-12-24 07:22:40,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-24 07:22:40,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-24 07:22:40,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 07:22:40,850 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.unAssertPrecondition(IncrementalHoareTripleChecker.java:349) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:272) 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 [2023-12-24 07:22:40,853 INFO L158 Benchmark]: Toolchain (without parser) took 133335.50ms. Allocated memory is still 299.9MB. Free memory was 237.5MB in the beginning and 189.6MB in the end (delta: 47.8MB). Peak memory consumption was 48.7MB. Max. memory is 8.0GB. [2023-12-24 07:22:40,854 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 191.9MB. Free memory was 141.8MB in the beginning and 141.7MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 07:22:40,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.36ms. Allocated memory is still 299.9MB. Free memory was 237.5MB in the beginning and 212.8MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-24 07:22:40,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.41ms. Allocated memory is still 299.9MB. Free memory was 212.8MB in the beginning and 208.1MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-24 07:22:40,855 INFO L158 Benchmark]: Boogie Preprocessor took 105.69ms. Allocated memory is still 299.9MB. Free memory was 208.1MB in the beginning and 198.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-24 07:22:40,855 INFO L158 Benchmark]: RCFGBuilder took 64556.94ms. Allocated memory is still 299.9MB. Free memory was 198.7MB in the beginning and 144.1MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2023-12-24 07:22:40,855 INFO L158 Benchmark]: TraceAbstraction took 68116.29ms. Allocated memory is still 299.9MB. Free memory was 143.1MB in the beginning and 189.6MB in the end (delta: -46.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 07:22:40,857 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 191.9MB. Free memory was 141.8MB in the beginning and 141.7MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 472.36ms. Allocated memory is still 299.9MB. Free memory was 237.5MB in the beginning and 212.8MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 76.41ms. Allocated memory is still 299.9MB. Free memory was 212.8MB in the beginning and 208.1MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 105.69ms. Allocated memory is still 299.9MB. Free memory was 208.1MB in the beginning and 198.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 64556.94ms. Allocated memory is still 299.9MB. Free memory was 198.7MB in the beginning and 144.1MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. * TraceAbstraction took 68116.29ms. Allocated memory is still 299.9MB. Free memory was 143.1MB in the beginning and 189.6MB in the end (delta: -46.6MB). There was no memory consumed. 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...