/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/loop-lit/afnp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 03:12:35,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 03:12:35,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 03:12:35,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 03:12:35,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 03:12:35,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 03:12:35,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 03:12:35,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 03:12:35,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 03:12:35,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 03:12:35,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 03:12:35,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 03:12:35,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 03:12:35,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 03:12:35,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 03:12:35,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 03:12:35,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 03:12:35,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 03:12:35,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 03:12:35,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 03:12:35,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 03:12:35,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 03:12:35,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 03:12:35,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 03:12:35,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-24 03:12:35,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-24 03:12:35,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-24 03:12:35,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-24 03:12:35,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-24 03:12:35,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-24 03:12:35,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-24 03:12:35,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-24 03:12:35,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-24 03:12:35,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-24 03:12:35,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-24 03:12:35,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-24 03:12:35,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-24 03:12:35,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-24 03:12:35,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 03:12:35,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 03:12:35,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 03:12:35,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-24 03:12:35,999 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 03:12:36,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 03:12:36,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 03:12:36,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 03:12:36,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 03:12:36,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 03:12:36,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 03:12:36,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 03:12:36,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 03:12:36,002 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 03:12:36,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 03:12:36,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 03:12:36,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 03:12:36,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 03:12:36,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 03:12:36,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 03:12:36,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 03:12:36,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 03:12:36,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 03:12:36,003 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-24 03:12:36,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 03:12:36,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 03:12:36,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 03:12:36,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 03:12:36,190 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 03:12:36,190 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 03:12:36,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/afnp2014.i [2022-02-24 03:12:36,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594fed596/9d369206722346a095c204f9945f8301/FLAG4ce6f7dc0 [2022-02-24 03:12:36,598 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 03:12:36,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/afnp2014.i [2022-02-24 03:12:36,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594fed596/9d369206722346a095c204f9945f8301/FLAG4ce6f7dc0 [2022-02-24 03:12:36,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594fed596/9d369206722346a095c204f9945f8301 [2022-02-24 03:12:36,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 03:12:36,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 03:12:36,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 03:12:36,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 03:12:36,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 03:12:36,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:12:36" (1/1) ... [2022-02-24 03:12:36,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70c39166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36, skipping insertion in model container [2022-02-24 03:12:36,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:12:36" (1/1) ... [2022-02-24 03:12:36,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 03:12:36,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 03:12:36,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/afnp2014.i[895,908] [2022-02-24 03:12:36,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 03:12:36,795 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 03:12:36,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/afnp2014.i[895,908] [2022-02-24 03:12:36,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 03:12:36,819 INFO L208 MainTranslator]: Completed translation [2022-02-24 03:12:36,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36 WrapperNode [2022-02-24 03:12:36,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 03:12:36,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 03:12:36,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 03:12:36,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 03:12:36,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36" (1/1) ... [2022-02-24 03:12:36,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36" (1/1) ... [2022-02-24 03:12:36,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36" (1/1) ... [2022-02-24 03:12:36,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36" (1/1) ... [2022-02-24 03:12:36,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36" (1/1) ... [2022-02-24 03:12:36,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36" (1/1) ... [2022-02-24 03:12:36,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36" (1/1) ... [2022-02-24 03:12:36,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 03:12:36,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 03:12:36,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 03:12:36,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 03:12:36,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36" (1/1) ... [2022-02-24 03:12:36,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 03:12:36,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 03:12:36,880 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) [2022-02-24 03:12:36,887 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 [2022-02-24 03:12:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 03:12:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 03:12:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 03:12:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-24 03:12:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-24 03:12:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 03:12:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 03:12:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 03:12:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-02-24 03:12:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-02-24 03:12:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 03:12:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 03:12:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-24 03:12:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-24 03:12:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 03:12:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 03:12:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 03:12:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 03:12:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 03:12:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 03:12:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 03:12:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 03:12:36,982 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 03:12:36,984 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 03:12:37,108 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 03:12:37,112 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 03:12:37,113 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 03:12:37,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:12:37 BoogieIcfgContainer [2022-02-24 03:12:37,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 03:12:37,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 03:12:37,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 03:12:37,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 03:12:37,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:12:36" (1/3) ... [2022-02-24 03:12:37,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53de5483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:12:37, skipping insertion in model container [2022-02-24 03:12:37,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:12:36" (2/3) ... [2022-02-24 03:12:37,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53de5483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:12:37, skipping insertion in model container [2022-02-24 03:12:37,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:12:37" (3/3) ... [2022-02-24 03:12:37,136 INFO L111 eAbstractionObserver]: Analyzing ICFG afnp2014.i [2022-02-24 03:12:37,140 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 03:12:37,140 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 03:12:37,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 03:12:37,192 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 [2022-02-24 03:12:37,192 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 03:12:37,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 03:12:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-24 03:12:37,207 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:12:37,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:12:37,208 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:12:37,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:12:37,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1411659294, now seen corresponding path program 1 times [2022-02-24 03:12:37,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:12:37,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070581376] [2022-02-24 03:12:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:12:37,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:12:37,276 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 03:12:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:37,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:12:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:12:37,379 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:12:37,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070581376] [2022-02-24 03:12:37,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1070581376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:12:37,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:12:37,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-24 03:12:37,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177482763] [2022-02-24 03:12:37,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:12:37,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-24 03:12:37,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:12:37,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-24 03:12:37,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-24 03:12:37,411 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 03:12:37,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:12:37,450 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-02-24 03:12:37,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-24 03:12:37,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-02-24 03:12:37,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:12:37,457 INFO L225 Difference]: With dead ends: 33 [2022-02-24 03:12:37,457 INFO L226 Difference]: Without dead ends: 14 [2022-02-24 03:12:37,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-24 03:12:37,461 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:12:37,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 24 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-24 03:12:37,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-02-24 03:12:37,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-02-24 03:12:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 03:12:37,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-02-24 03:12:37,488 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-02-24 03:12:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:12:37,488 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-02-24 03:12:37,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 03:12:37,488 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-02-24 03:12:37,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-24 03:12:37,489 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:12:37,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:12:37,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 03:12:37,490 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:12:37,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:12:37,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1052240059, now seen corresponding path program 1 times [2022-02-24 03:12:37,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:12:37,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61627409] [2022-02-24 03:12:37,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:12:37,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:12:37,493 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 03:12:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:37,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:12:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:12:37,605 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:12:37,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61627409] [2022-02-24 03:12:37,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [61627409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:12:37,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:12:37,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 03:12:37,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557904468] [2022-02-24 03:12:37,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:12:37,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 03:12:37,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:12:37,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 03:12:37,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 03:12:37,608 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 03:12:37,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:12:37,675 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-02-24 03:12:37,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 03:12:37,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-02-24 03:12:37,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:12:37,676 INFO L225 Difference]: With dead ends: 22 [2022-02-24 03:12:37,676 INFO L226 Difference]: Without dead ends: 17 [2022-02-24 03:12:37,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-24 03:12:37,677 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:12:37,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-24 03:12:37,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-02-24 03:12:37,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-02-24 03:12:37,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 03:12:37,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-02-24 03:12:37,683 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2022-02-24 03:12:37,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:12:37,683 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-02-24 03:12:37,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 03:12:37,683 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-02-24 03:12:37,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-24 03:12:37,684 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:12:37,684 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:12:37,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 03:12:37,684 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:12:37,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:12:37,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1104509419, now seen corresponding path program 1 times [2022-02-24 03:12:37,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:12:37,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792110048] [2022-02-24 03:12:37,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:12:37,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:12:37,884 ERROR L257 FreeRefinementEngine]: Caught unknown exception: Undeclared function symbol (* Bool Int) [2022-02-24 03:12:37,885 WARN L325 FreeRefinementEngine]: Global settings require throwing the following exception [2022-02-24 03:12:37,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 03:12:37,885 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (* Bool Int) at de.uni_freiburg.informatik.ultimate.logic.Theory.term(Theory.java:1615) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:401) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.mul(SmtUtils.java:597) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrUtils.matrixVectorMultiplicationWithVariables(QvasrUtils.java:226) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.intVasrAbstractionToFormula(QvasrSummarizer.java:177) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.summarizeLoop(QvasrSummarizer.java:140) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrLoopSummarization.getQvasrAcceleration(QvasrLoopSummarization.java:87) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorQvasr.accelerateLoop(AcceleratorQvasr.java:91) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:249) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) 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) [2022-02-24 03:12:37,889 INFO L158 Benchmark]: Toolchain (without parser) took 1271.68ms. Allocated memory was 180.4MB in the beginning and 257.9MB in the end (delta: 77.6MB). Free memory was 126.8MB in the beginning and 177.0MB in the end (delta: -50.2MB). Peak memory consumption was 26.8MB. Max. memory is 8.0GB. [2022-02-24 03:12:37,889 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 180.4MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-24 03:12:37,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.61ms. Allocated memory was 180.4MB in the beginning and 257.9MB in the end (delta: 77.6MB). Free memory was 126.5MB in the beginning and 229.3MB in the end (delta: -102.8MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-02-24 03:12:37,890 INFO L158 Benchmark]: Boogie Preprocessor took 31.72ms. Allocated memory is still 257.9MB. Free memory was 229.3MB in the beginning and 227.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-24 03:12:37,890 INFO L158 Benchmark]: RCFGBuilder took 260.83ms. Allocated memory is still 257.9MB. Free memory was 227.9MB in the beginning and 217.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-24 03:12:37,891 INFO L158 Benchmark]: TraceAbstraction took 772.91ms. Allocated memory is still 257.9MB. Free memory was 217.2MB in the beginning and 177.0MB in the end (delta: 40.3MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2022-02-24 03:12:37,892 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 180.4MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 200.61ms. Allocated memory was 180.4MB in the beginning and 257.9MB in the end (delta: 77.6MB). Free memory was 126.5MB in the beginning and 229.3MB in the end (delta: -102.8MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.72ms. Allocated memory is still 257.9MB. Free memory was 229.3MB in the beginning and 227.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 260.83ms. Allocated memory is still 257.9MB. Free memory was 227.9MB in the beginning and 217.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 772.91ms. Allocated memory is still 257.9MB. Free memory was 217.2MB in the beginning and 177.0MB in the end (delta: 40.3MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (* Bool Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (* Bool Int): de.uni_freiburg.informatik.ultimate.logic.Theory.term(Theory.java:1615) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-24 03:12:37,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...