/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/verifythis/elimination_max.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:29:37,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:29:37,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:29:38,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:29:38,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:29:38,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:29:38,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:29:38,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:29:38,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:29:38,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:29:38,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:29:38,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:29:38,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:29:38,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:29:38,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:29:38,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:29:38,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:29:38,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:29:38,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:29:38,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:29:38,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-01-31 23:29:38,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:29:38,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:29:38,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:29:38,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:29:38,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:29:38,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:29:38,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:29:38,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:29:38,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:29:38,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:29:38,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:29:38,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:29:38,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:29:38,097 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:29:38,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:29:38,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:29:38,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:29:38,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:29:38,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:29:38,098 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:29:38,098 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:29:38,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:29:38,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:29:38,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:29:38,288 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:29:38,291 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:29:38,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/elimination_max.c [2022-01-31 23:29:38,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/676aa9a5d/dbe2778f150848ba9b3d3341b812aa97/FLAGb5c32e0d8 [2022-01-31 23:29:38,698 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:29:38,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/verifythis/elimination_max.c [2022-01-31 23:29:38,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/676aa9a5d/dbe2778f150848ba9b3d3341b812aa97/FLAGb5c32e0d8 [2022-01-31 23:29:38,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/676aa9a5d/dbe2778f150848ba9b3d3341b812aa97 [2022-01-31 23:29:38,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:29:38,722 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:29:38,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:29:38,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:29:38,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:29:38,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:29:38" (1/1) ... [2022-01-31 23:29:38,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5b730a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38, skipping insertion in model container [2022-01-31 23:29:38,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:29:38" (1/1) ... [2022-01-31 23:29:38,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:29:38,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:29:38,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/verifythis/elimination_max.c[485,498] [2022-01-31 23:29:38,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:29:38,884 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:29:38,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/verifythis/elimination_max.c[485,498] [2022-01-31 23:29:38,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:29:38,914 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:29:38,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38 WrapperNode [2022-01-31 23:29:38,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:29:38,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:29:38,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:29:38,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:29:38,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38" (1/1) ... [2022-01-31 23:29:38,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38" (1/1) ... [2022-01-31 23:29:38,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38" (1/1) ... [2022-01-31 23:29:38,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38" (1/1) ... [2022-01-31 23:29:38,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38" (1/1) ... [2022-01-31 23:29:38,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38" (1/1) ... [2022-01-31 23:29:38,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38" (1/1) ... [2022-01-31 23:29:38,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:29:38,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:29:38,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:29:38,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:29:38,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38" (1/1) ... [2022-01-31 23:29:38,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:29:38,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:29:38,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 23:29:39,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 23:29:39,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:29:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:29:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:29:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 23:29:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 23:29:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:29:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 23:29:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 23:29:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure free [2022-01-31 23:29:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:29:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:29:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:29:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:29:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 23:29:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 23:29:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 23:29:39,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:29:39,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 23:29:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 23:29:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:29:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:29:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:29:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:29:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:29:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:29:39,094 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:29:39,095 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:29:39,209 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:29:39,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:29:39,213 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-31 23:29:39,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:29:39 BoogieIcfgContainer [2022-01-31 23:29:39,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:29:39,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:29:39,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:29:39,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:29:39,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:29:38" (1/3) ... [2022-01-31 23:29:39,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a90614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:29:39, skipping insertion in model container [2022-01-31 23:29:39,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:29:38" (2/3) ... [2022-01-31 23:29:39,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a90614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:29:39, skipping insertion in model container [2022-01-31 23:29:39,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:29:39" (3/3) ... [2022-01-31 23:29:39,221 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2022-01-31 23:29:39,224 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:29:39,224 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:29:39,261 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:29:39,265 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=QVASR [2022-01-31 23:29:39,265 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:29:39,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-01-31 23:29:39,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-31 23:29:39,289 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:29:39,289 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:29:39,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:29:39,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:29:39,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1951153279, now seen corresponding path program 1 times [2022-01-31 23:29:39,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:29:39,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220639555] [2022-01-31 23:29:39,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:29:39,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:29:39,356 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:29:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:39,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:29:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:39,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:29:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:39,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-01-31 23:29:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-01-31 23:29:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-31 23:29:39,520 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:29:39,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220639555] [2022-01-31 23:29:39,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1220639555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:29:39,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:29:39,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:29:39,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139582205] [2022-01-31 23:29:39,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:29:39,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:29:39,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:29:39,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:29:39,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:29:39,549 INFO L87 Difference]: Start difference. First operand has 39 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 23:29:39,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:29:39,667 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2022-01-31 23:29:39,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:29:39,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2022-01-31 23:29:39,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:29:39,674 INFO L225 Difference]: With dead ends: 71 [2022-01-31 23:29:39,674 INFO L226 Difference]: Without dead ends: 34 [2022-01-31 23:29:39,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:29:39,680 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 36 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:29:39,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 38 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:29:39,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-01-31 23:29:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-01-31 23:29:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 23:29:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-01-31 23:29:39,712 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 29 [2022-01-31 23:29:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:29:39,712 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-01-31 23:29:39,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 23:29:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-01-31 23:29:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-31 23:29:39,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:29:39,714 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:29:39,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:29:39,714 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:29:39,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:29:39,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1957169217, now seen corresponding path program 1 times [2022-01-31 23:29:39,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:29:39,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603029513] [2022-01-31 23:29:39,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:29:39,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:29:39,721 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:29:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:29:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:29:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-01-31 23:29:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-01-31 23:29:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-31 23:29:39,952 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:29:39,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603029513] [2022-01-31 23:29:39,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1603029513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:29:39,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:29:39,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-31 23:29:39,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193181350] [2022-01-31 23:29:39,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:29:39,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-31 23:29:39,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:29:39,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-31 23:29:39,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-31 23:29:39,954 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 23:29:40,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:29:40,178 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-01-31 23:29:40,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-31 23:29:40,179 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2022-01-31 23:29:40,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:29:40,180 INFO L225 Difference]: With dead ends: 40 [2022-01-31 23:29:40,180 INFO L226 Difference]: Without dead ends: 38 [2022-01-31 23:29:40,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-01-31 23:29:40,183 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 66 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:29:40,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 39 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:29:40,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-01-31 23:29:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-01-31 23:29:40,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 23:29:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-01-31 23:29:40,193 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 29 [2022-01-31 23:29:40,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:29:40,194 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-01-31 23:29:40,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 23:29:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-01-31 23:29:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-31 23:29:40,195 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:29:40,195 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:29:40,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:29:40,195 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:29:40,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:29:40,196 INFO L85 PathProgramCache]: Analyzing trace with hash -718145150, now seen corresponding path program 1 times [2022-01-31 23:29:40,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:29:40,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201885151] [2022-01-31 23:29:40,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:29:40,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:29:40,198 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:29:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:40,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:29:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:29:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:40,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-01-31 23:29:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:40,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-01-31 23:29:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:40,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-01-31 23:29:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:29:40,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-31 23:29:40,361 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:29:40,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201885151] [2022-01-31 23:29:40,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1201885151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:29:40,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:29:40,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-31 23:29:40,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562658620] [2022-01-31 23:29:40,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:29:40,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-31 23:29:40,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:29:40,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-31 23:29:40,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-31 23:29:40,363 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 12 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-01-31 23:29:40,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:29:40,574 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-01-31 23:29:40,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-31 23:29:40,575 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 36 [2022-01-31 23:29:40,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:29:40,575 INFO L225 Difference]: With dead ends: 38 [2022-01-31 23:29:40,575 INFO L226 Difference]: Without dead ends: 0 [2022-01-31 23:29:40,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2022-01-31 23:29:40,576 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 61 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:29:40,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 40 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:29:40,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-31 23:29:40,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-31 23:29:40,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-31 23:29:40,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-31 23:29:40,578 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2022-01-31 23:29:40,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:29:40,578 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-31 23:29:40,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-01-31 23:29:40,578 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-31 23:29:40,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-31 23:29:40,580 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:29:40,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 23:29:40,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-31 23:29:40,699 INFO L858 garLoopResultBuilder]: For program point reach_errorEXIT(line 5) no Hoare annotation was computed. [2022-01-31 23:29:40,699 INFO L858 garLoopResultBuilder]: For program point reach_errorENTRY(line 5) no Hoare annotation was computed. [2022-01-31 23:29:40,699 INFO L858 garLoopResultBuilder]: For program point reach_errorFINAL(line 5) no Hoare annotation was computed. [2022-01-31 23:29:40,699 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2022-01-31 23:29:40,699 INFO L861 garLoopResultBuilder]: At program point L8(line 8) the Hoare annotation is: true [2022-01-31 23:29:40,699 INFO L861 garLoopResultBuilder]: At program point L8-2(lines 7 9) the Hoare annotation is: true [2022-01-31 23:29:40,699 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notEXIT(lines 7 9) the Hoare annotation is: true [2022-01-31 23:29:40,700 INFO L854 garLoopResultBuilder]: At program point L35-2(lines 25 37) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)))) [2022-01-31 23:29:40,700 INFO L861 garLoopResultBuilder]: At program point mainEXIT(lines 16 51) the Hoare annotation is: true [2022-01-31 23:29:40,700 INFO L854 garLoopResultBuilder]: At program point L25-2(lines 25 37) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)))) [2022-01-31 23:29:40,700 INFO L854 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2022-01-31 23:29:40,700 INFO L854 garLoopResultBuilder]: At program point L19-1(line 19) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2022-01-31 23:29:40,700 INFO L854 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= |main_#t~mem15| 0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)) (<= 0 |main_#t~mem16|))) [2022-01-31 23:29:40,700 INFO L854 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= |main_#t~mem15| 0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)) (<= 0 |main_#t~mem16|))) [2022-01-31 23:29:40,700 INFO L861 garLoopResultBuilder]: At program point mainFINAL(lines 16 51) the Hoare annotation is: true [2022-01-31 23:29:40,701 INFO L854 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)))) [2022-01-31 23:29:40,701 INFO L854 garLoopResultBuilder]: At program point L42-1(line 42) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)))) [2022-01-31 23:29:40,701 INFO L854 garLoopResultBuilder]: At program point mainENTRY(lines 16 51) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2022-01-31 23:29:40,701 INFO L854 garLoopResultBuilder]: At program point L20(line 20) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2022-01-31 23:29:40,701 INFO L854 garLoopResultBuilder]: At program point L20-1(line 20) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |main_#t~malloc6.base|)) [2022-01-31 23:29:40,701 INFO L854 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= |main_#t~mem12| 0) (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)) (= |main_#t~mem13| 0))) [2022-01-31 23:29:40,701 INFO L854 garLoopResultBuilder]: At program point L45-2(lines 45 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)))) [2022-01-31 23:29:40,701 INFO L854 garLoopResultBuilder]: At program point L43-1(line 43) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= |main_#t~mem12| 0) (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)) (= |main_#t~mem13| 0))) [2022-01-31 23:29:40,701 INFO L854 garLoopResultBuilder]: At program point L45-3(lines 45 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)))) [2022-01-31 23:29:40,702 INFO L861 garLoopResultBuilder]: At program point L45-4(lines 45 47) the Hoare annotation is: true [2022-01-31 23:29:40,702 INFO L854 garLoopResultBuilder]: At program point L35(lines 35 36) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc6.base|)))) [2022-01-31 23:29:40,702 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-01-31 23:29:40,702 INFO L854 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-01-31 23:29:40,702 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-01-31 23:29:40,702 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-01-31 23:29:40,702 INFO L861 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-01-31 23:29:40,702 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-01-31 23:29:40,702 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-01-31 23:29:40,702 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 10 12) the Hoare annotation is: true [2022-01-31 23:29:40,703 INFO L854 garLoopResultBuilder]: At program point L11(line 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-01-31 23:29:40,703 INFO L854 garLoopResultBuilder]: At program point L11-1(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-01-31 23:29:40,703 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 10 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-01-31 23:29:40,703 INFO L854 garLoopResultBuilder]: At program point L11-3(lines 10 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-01-31 23:29:40,703 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-01-31 23:29:40,703 INFO L854 garLoopResultBuilder]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2022-01-31 23:29:40,703 INFO L854 garLoopResultBuilder]: At program point #Ultimate.meminitEXIT(line -1) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |#Ultimate.meminit_#ptr.base|)) [2022-01-31 23:29:40,703 INFO L854 garLoopResultBuilder]: At program point #Ultimate.meminitFINAL(line -1) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |#Ultimate.meminit_#ptr.base|)) [2022-01-31 23:29:40,705 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-31 23:29:40,706 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:29:40,710 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:259) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:474) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) [2022-01-31 23:29:40,724 INFO L158 Benchmark]: Toolchain (without parser) took 2002.14ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 155.9MB in the beginning and 211.6MB in the end (delta: -55.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:29:40,724 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 207.6MB. Free memory is still 172.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:29:40,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.51ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 155.7MB in the beginning and 222.9MB in the end (delta: -67.2MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. [2022-01-31 23:29:40,725 INFO L158 Benchmark]: Boogie Preprocessor took 40.61ms. Allocated memory is still 249.6MB. Free memory was 222.9MB in the beginning and 221.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:29:40,725 INFO L158 Benchmark]: RCFGBuilder took 257.43ms. Allocated memory is still 249.6MB. Free memory was 221.3MB in the beginning and 209.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-31 23:29:40,725 INFO L158 Benchmark]: TraceAbstraction took 1508.36ms. Allocated memory is still 249.6MB. Free memory was 209.2MB in the beginning and 211.6MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:29:40,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 207.6MB. Free memory is still 172.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 190.51ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 155.7MB in the beginning and 222.9MB in the end (delta: -67.2MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.61ms. Allocated memory is still 249.6MB. Free memory was 222.9MB in the beginning and 221.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 257.43ms. Allocated memory is still 249.6MB. Free memory was 221.3MB in the beginning and 209.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1508.36ms. Allocated memory is still 249.6MB. Free memory was 209.2MB in the beginning and 211.6MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 518 IncrementalHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 87 mSDtfsCounter, 518 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 68 PreInvPairs, 95 NumberOfFragments, 251 HoareAnnotationTreeSize, 68 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 39 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:259) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-31 23:29:40,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...