/usr/bin/java -ea -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 13:20:44,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 13:20:44,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 13:20:44,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 13:20:44,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 13:20:44,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 13:20:44,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 13:20:44,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 13:20:44,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 13:20:44,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 13:20:44,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 13:20:44,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 13:20:44,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 13:20:44,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 13:20:44,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 13:20:44,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 13:20:44,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 13:20:44,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 13:20:44,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 13:20:44,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 13:20:44,828 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 13:20:44,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 13:20:44,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 13:20:44,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 13:20:44,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 13:20:44,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-27 13:20:44,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 13:20:44,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 13:20:44,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 13:20:44,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-04-27 13:20:44,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 13:20:44,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 13:20:44,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-27 13:20:44,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-27 13:20:44,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-27 13:20:44,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-27 13:20:44,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-27 13:20:44,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-27 13:20:44,865 INFO L138 SettingsManager]: * Use SBE=true [2022-04-27 13:20:44,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 13:20:44,866 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 13:20:44,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 13:20:44,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 13:20:44,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 13:20:44,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 13:20:44,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 13:20:44,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 13:20:44,867 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 13:20:44,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 13:20:44,867 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 13:20:44,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 13:20:44,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 13:20:44,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 13:20:44,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 13:20:44,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 13:20:44,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 13:20:44,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-27 13:20:44,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-27 13:20:44,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 13:20:44,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-27 13:20:44,868 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-04-27 13:20:44,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-27 13:20:44,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-27 13:20:44,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 13:20:45,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 13:20:45,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 13:20:45,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 13:20:45,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 13:20:45,044 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 13:20:45,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound10.c [2022-04-27 13:20:45,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1698665a7/537d5bcff8d14f739376546652184008/FLAGc51726b81 [2022-04-27 13:20:45,473 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 13:20:45,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound10.c [2022-04-27 13:20:45,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1698665a7/537d5bcff8d14f739376546652184008/FLAGc51726b81 [2022-04-27 13:20:45,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1698665a7/537d5bcff8d14f739376546652184008 [2022-04-27 13:20:45,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 13:20:45,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-27 13:20:45,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 13:20:45,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 13:20:45,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 13:20:45,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 01:20:45" (1/1) ... [2022-04-27 13:20:45,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2caa6ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45, skipping insertion in model container [2022-04-27 13:20:45,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 01:20:45" (1/1) ... [2022-04-27 13:20:45,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 13:20:45,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 13:20:45,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound10.c[546,559] [2022-04-27 13:20:45,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 13:20:45,679 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 13:20:45,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound10.c[546,559] [2022-04-27 13:20:45,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 13:20:45,716 INFO L208 MainTranslator]: Completed translation [2022-04-27 13:20:45,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45 WrapperNode [2022-04-27 13:20:45,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 13:20:45,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 13:20:45,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 13:20:45,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 13:20:45,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45" (1/1) ... [2022-04-27 13:20:45,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45" (1/1) ... [2022-04-27 13:20:45,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45" (1/1) ... [2022-04-27 13:20:45,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45" (1/1) ... [2022-04-27 13:20:45,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45" (1/1) ... [2022-04-27 13:20:45,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45" (1/1) ... [2022-04-27 13:20:45,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45" (1/1) ... [2022-04-27 13:20:45,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 13:20:45,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 13:20:45,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 13:20:45,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 13:20:45,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45" (1/1) ... [2022-04-27 13:20:45,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 13:20:45,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 13:20:45,780 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) [2022-04-27 13:20:45,789 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 [2022-04-27 13:20:45,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 13:20:45,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 13:20:45,813 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 13:20:45,814 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-27 13:20:45,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 13:20:45,815 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 13:20:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 13:20:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 13:20:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 13:20:45,858 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 13:20:45,859 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 13:20:46,006 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 13:20:46,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 13:20:46,011 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 13:20:46,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 01:20:46 BoogieIcfgContainer [2022-04-27 13:20:46,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 13:20:46,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 13:20:46,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 13:20:46,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 13:20:46,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 01:20:45" (1/3) ... [2022-04-27 13:20:46,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ac0753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 01:20:46, skipping insertion in model container [2022-04-27 13:20:46,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:45" (2/3) ... [2022-04-27 13:20:46,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ac0753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 01:20:46, skipping insertion in model container [2022-04-27 13:20:46,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 01:20:46" (3/3) ... [2022-04-27 13:20:46,017 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound10.c [2022-04-27 13:20:46,026 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-27 13:20:46,026 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 13:20:46,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 13:20:46,077 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@163e030c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1566e343 [2022-04-27 13:20:46,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 13:20:46,082 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-27 13:20:46,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-27 13:20:46,087 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 13:20:46,088 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 13:20:46,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 13:20:46,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 13:20:46,093 INFO L85 PathProgramCache]: Analyzing trace with hash 774216096, now seen corresponding path program 1 times [2022-04-27 13:20:46,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 13:20:46,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211256804] [2022-04-27 13:20:46,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 13:20:46,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 13:20:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:46,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 13:20:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:46,251 INFO L290 TraceCheckUtils]: 0: Hoare triple {56#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {35#true} is VALID [2022-04-27 13:20:46,251 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#true} assume true; {35#true} is VALID [2022-04-27 13:20:46,252 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {35#true} {35#true} #68#return; {35#true} is VALID [2022-04-27 13:20:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-27 13:20:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:46,270 INFO L290 TraceCheckUtils]: 0: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-27 13:20:46,271 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-27 13:20:46,271 INFO L290 TraceCheckUtils]: 2: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-27 13:20:46,271 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {36#false} {35#true} #56#return; {36#false} is VALID [2022-04-27 13:20:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-27 13:20:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:46,283 INFO L290 TraceCheckUtils]: 0: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-27 13:20:46,284 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-27 13:20:46,284 INFO L290 TraceCheckUtils]: 2: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-27 13:20:46,284 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {36#false} {36#false} #58#return; {36#false} is VALID [2022-04-27 13:20:46,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-04-27 13:20:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:46,289 INFO L290 TraceCheckUtils]: 0: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-27 13:20:46,289 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-27 13:20:46,289 INFO L290 TraceCheckUtils]: 2: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-27 13:20:46,290 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {36#false} {36#false} #60#return; {36#false} is VALID [2022-04-27 13:20:46,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-04-27 13:20:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:46,297 INFO L290 TraceCheckUtils]: 0: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-27 13:20:46,298 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-27 13:20:46,298 INFO L290 TraceCheckUtils]: 2: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-27 13:20:46,298 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {36#false} {36#false} #62#return; {36#false} is VALID [2022-04-27 13:20:46,300 INFO L272 TraceCheckUtils]: 0: Hoare triple {35#true} call ULTIMATE.init(); {56#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 13:20:46,300 INFO L290 TraceCheckUtils]: 1: Hoare triple {56#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {35#true} is VALID [2022-04-27 13:20:46,300 INFO L290 TraceCheckUtils]: 2: Hoare triple {35#true} assume true; {35#true} is VALID [2022-04-27 13:20:46,300 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {35#true} {35#true} #68#return; {35#true} is VALID [2022-04-27 13:20:46,300 INFO L272 TraceCheckUtils]: 4: Hoare triple {35#true} call #t~ret6 := main(); {35#true} is VALID [2022-04-27 13:20:46,300 INFO L290 TraceCheckUtils]: 5: Hoare triple {35#true} havoc ~z~0;havoc ~k~0;havoc ~x~0;havoc ~y~0;havoc ~c~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~z~0 := #t~nondet4;havoc #t~nondet4; {35#true} is VALID [2022-04-27 13:20:46,301 INFO L272 TraceCheckUtils]: 6: Hoare triple {35#true} call assume_abort_if_not((if ~z~0 >= 0 && ~z~0 <= 10 then 1 else 0)); {35#true} is VALID [2022-04-27 13:20:46,301 INFO L290 TraceCheckUtils]: 7: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-27 13:20:46,302 INFO L290 TraceCheckUtils]: 8: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-27 13:20:46,302 INFO L290 TraceCheckUtils]: 9: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-27 13:20:46,302 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {36#false} {35#true} #56#return; {36#false} is VALID [2022-04-27 13:20:46,302 INFO L290 TraceCheckUtils]: 11: Hoare triple {36#false} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~k~0 := #t~nondet5;havoc #t~nondet5; {36#false} is VALID [2022-04-27 13:20:46,302 INFO L272 TraceCheckUtils]: 12: Hoare triple {36#false} call assume_abort_if_not((if ~k~0 >= 0 && ~k~0 <= 10 then 1 else 0)); {35#true} is VALID [2022-04-27 13:20:46,302 INFO L290 TraceCheckUtils]: 13: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-27 13:20:46,303 INFO L290 TraceCheckUtils]: 14: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-27 13:20:46,303 INFO L290 TraceCheckUtils]: 15: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-27 13:20:46,303 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {36#false} {36#false} #58#return; {36#false} is VALID [2022-04-27 13:20:46,304 INFO L272 TraceCheckUtils]: 17: Hoare triple {36#false} call assume_abort_if_not((if ~z~0 >= 1 then 1 else 0)); {35#true} is VALID [2022-04-27 13:20:46,304 INFO L290 TraceCheckUtils]: 18: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-27 13:20:46,304 INFO L290 TraceCheckUtils]: 19: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-27 13:20:46,305 INFO L290 TraceCheckUtils]: 20: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-27 13:20:46,305 INFO L284 TraceCheckUtils]: 21: Hoare quadruple {36#false} {36#false} #60#return; {36#false} is VALID [2022-04-27 13:20:46,305 INFO L272 TraceCheckUtils]: 22: Hoare triple {36#false} call assume_abort_if_not((if ~k~0 >= 1 then 1 else 0)); {35#true} is VALID [2022-04-27 13:20:46,305 INFO L290 TraceCheckUtils]: 23: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-27 13:20:46,306 INFO L290 TraceCheckUtils]: 24: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-27 13:20:46,306 INFO L290 TraceCheckUtils]: 25: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-27 13:20:46,306 INFO L284 TraceCheckUtils]: 26: Hoare quadruple {36#false} {36#false} #62#return; {36#false} is VALID [2022-04-27 13:20:46,306 INFO L290 TraceCheckUtils]: 27: Hoare triple {36#false} ~x~0 := 1;~y~0 := ~z~0;~c~0 := 1; {36#false} is VALID [2022-04-27 13:20:46,307 INFO L290 TraceCheckUtils]: 28: Hoare triple {36#false} assume !false; {36#false} is VALID [2022-04-27 13:20:46,307 INFO L272 TraceCheckUtils]: 29: Hoare triple {36#false} call __VERIFIER_assert((if 0 == 1 + (~x~0 * ~z~0 - ~x~0 - ~y~0) then 1 else 0)); {36#false} is VALID [2022-04-27 13:20:46,307 INFO L290 TraceCheckUtils]: 30: Hoare triple {36#false} ~cond := #in~cond; {36#false} is VALID [2022-04-27 13:20:46,307 INFO L290 TraceCheckUtils]: 31: Hoare triple {36#false} assume 0 == ~cond; {36#false} is VALID [2022-04-27 13:20:46,307 INFO L290 TraceCheckUtils]: 32: Hoare triple {36#false} assume !false; {36#false} is VALID [2022-04-27 13:20:46,308 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-27 13:20:46,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 13:20:46,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211256804] [2022-04-27 13:20:46,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211256804] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 13:20:46,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 13:20:46,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-27 13:20:46,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044488919] [2022-04-27 13:20:46,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 13:20:46,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2022-04-27 13:20:46,314 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 13:20:46,316 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-27 13:20:46,355 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 13:20:46,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-27 13:20:46,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 13:20:46,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-27 13:20:46,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 13:20:46,374 INFO L87 Difference]: Start difference. First operand has 32 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-27 13:20:46,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:46,489 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2022-04-27 13:20:46,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-27 13:20:46,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2022-04-27 13:20:46,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 13:20:46,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-27 13:20:46,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2022-04-27 13:20:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-27 13:20:46,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2022-04-27 13:20:46,508 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 78 transitions. [2022-04-27 13:20:46,607 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 13:20:46,613 INFO L225 Difference]: With dead ends: 57 [2022-04-27 13:20:46,613 INFO L226 Difference]: Without dead ends: 27 [2022-04-27 13:20:46,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 13:20:46,617 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 13:20:46,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 33 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 13:20:46,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-04-27 13:20:46,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-04-27 13:20:46,651 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 13:20:46,652 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand has 27 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 13:20:46,652 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand has 27 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 13:20:46,653 INFO L87 Difference]: Start difference. First operand 27 states. Second operand has 27 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 13:20:46,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:46,664 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-04-27 13:20:46,664 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-04-27 13:20:46,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 13:20:46,665 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 13:20:46,665 INFO L74 IsIncluded]: Start isIncluded. First operand has 27 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 27 states. [2022-04-27 13:20:46,666 INFO L87 Difference]: Start difference. First operand has 27 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 27 states. [2022-04-27 13:20:46,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:46,668 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-04-27 13:20:46,669 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-04-27 13:20:46,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 13:20:46,669 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 13:20:46,670 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 13:20:46,670 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 13:20:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 13:20:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-04-27 13:20:46,673 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 33 [2022-04-27 13:20:46,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 13:20:46,674 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-04-27 13:20:46,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-27 13:20:46,674 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-04-27 13:20:46,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-27 13:20:46,675 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 13:20:46,675 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 13:20:46,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 13:20:46,676 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 13:20:46,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 13:20:46,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1105237916, now seen corresponding path program 1 times [2022-04-27 13:20:46,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 13:20:46,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853180286] [2022-04-27 13:20:46,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 13:20:46,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 13:20:46,698 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 13:20:46,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924336139] [2022-04-27 13:20:46,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 13:20:46,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 13:20:46,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 13:20:46,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-27 13:20:46,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-27 13:20:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:46,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-27 13:20:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:46,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 13:20:46,951 INFO L272 TraceCheckUtils]: 0: Hoare triple {231#true} call ULTIMATE.init(); {231#true} is VALID [2022-04-27 13:20:46,952 INFO L290 TraceCheckUtils]: 1: Hoare triple {231#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {231#true} is VALID [2022-04-27 13:20:46,952 INFO L290 TraceCheckUtils]: 2: Hoare triple {231#true} assume true; {231#true} is VALID [2022-04-27 13:20:46,954 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {231#true} {231#true} #68#return; {231#true} is VALID [2022-04-27 13:20:46,954 INFO L272 TraceCheckUtils]: 4: Hoare triple {231#true} call #t~ret6 := main(); {231#true} is VALID [2022-04-27 13:20:46,954 INFO L290 TraceCheckUtils]: 5: Hoare triple {231#true} havoc ~z~0;havoc ~k~0;havoc ~x~0;havoc ~y~0;havoc ~c~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~z~0 := #t~nondet4;havoc #t~nondet4; {231#true} is VALID [2022-04-27 13:20:46,954 INFO L272 TraceCheckUtils]: 6: Hoare triple {231#true} call assume_abort_if_not((if ~z~0 >= 0 && ~z~0 <= 10 then 1 else 0)); {231#true} is VALID [2022-04-27 13:20:46,955 INFO L290 TraceCheckUtils]: 7: Hoare triple {231#true} ~cond := #in~cond; {231#true} is VALID [2022-04-27 13:20:46,955 INFO L290 TraceCheckUtils]: 8: Hoare triple {231#true} assume !(0 == ~cond); {231#true} is VALID [2022-04-27 13:20:46,955 INFO L290 TraceCheckUtils]: 9: Hoare triple {231#true} assume true; {231#true} is VALID [2022-04-27 13:20:46,955 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {231#true} {231#true} #56#return; {231#true} is VALID [2022-04-27 13:20:46,955 INFO L290 TraceCheckUtils]: 11: Hoare triple {231#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~k~0 := #t~nondet5;havoc #t~nondet5; {231#true} is VALID [2022-04-27 13:20:46,955 INFO L272 TraceCheckUtils]: 12: Hoare triple {231#true} call assume_abort_if_not((if ~k~0 >= 0 && ~k~0 <= 10 then 1 else 0)); {231#true} is VALID [2022-04-27 13:20:46,955 INFO L290 TraceCheckUtils]: 13: Hoare triple {231#true} ~cond := #in~cond; {231#true} is VALID [2022-04-27 13:20:46,956 INFO L290 TraceCheckUtils]: 14: Hoare triple {231#true} assume !(0 == ~cond); {231#true} is VALID [2022-04-27 13:20:46,956 INFO L290 TraceCheckUtils]: 15: Hoare triple {231#true} assume true; {231#true} is VALID [2022-04-27 13:20:46,956 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {231#true} {231#true} #58#return; {231#true} is VALID [2022-04-27 13:20:46,956 INFO L272 TraceCheckUtils]: 17: Hoare triple {231#true} call assume_abort_if_not((if ~z~0 >= 1 then 1 else 0)); {231#true} is VALID [2022-04-27 13:20:46,956 INFO L290 TraceCheckUtils]: 18: Hoare triple {231#true} ~cond := #in~cond; {231#true} is VALID [2022-04-27 13:20:46,956 INFO L290 TraceCheckUtils]: 19: Hoare triple {231#true} assume !(0 == ~cond); {231#true} is VALID [2022-04-27 13:20:46,956 INFO L290 TraceCheckUtils]: 20: Hoare triple {231#true} assume true; {231#true} is VALID [2022-04-27 13:20:46,957 INFO L284 TraceCheckUtils]: 21: Hoare quadruple {231#true} {231#true} #60#return; {231#true} is VALID [2022-04-27 13:20:46,957 INFO L272 TraceCheckUtils]: 22: Hoare triple {231#true} call assume_abort_if_not((if ~k~0 >= 1 then 1 else 0)); {231#true} is VALID [2022-04-27 13:20:46,957 INFO L290 TraceCheckUtils]: 23: Hoare triple {231#true} ~cond := #in~cond; {231#true} is VALID [2022-04-27 13:20:46,957 INFO L290 TraceCheckUtils]: 24: Hoare triple {231#true} assume !(0 == ~cond); {231#true} is VALID [2022-04-27 13:20:46,957 INFO L290 TraceCheckUtils]: 25: Hoare triple {231#true} assume true; {231#true} is VALID [2022-04-27 13:20:46,958 INFO L284 TraceCheckUtils]: 26: Hoare quadruple {231#true} {231#true} #62#return; {231#true} is VALID [2022-04-27 13:20:46,958 INFO L290 TraceCheckUtils]: 27: Hoare triple {231#true} ~x~0 := 1;~y~0 := ~z~0;~c~0 := 1; {317#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} is VALID [2022-04-27 13:20:46,959 INFO L290 TraceCheckUtils]: 28: Hoare triple {317#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} assume !false; {317#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} is VALID [2022-04-27 13:20:46,959 INFO L272 TraceCheckUtils]: 29: Hoare triple {317#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} call __VERIFIER_assert((if 0 == 1 + (~x~0 * ~z~0 - ~x~0 - ~y~0) then 1 else 0)); {324#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 13:20:46,960 INFO L290 TraceCheckUtils]: 30: Hoare triple {324#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {328#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 13:20:46,960 INFO L290 TraceCheckUtils]: 31: Hoare triple {328#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {232#false} is VALID [2022-04-27 13:20:46,960 INFO L290 TraceCheckUtils]: 32: Hoare triple {232#false} assume !false; {232#false} is VALID [2022-04-27 13:20:46,961 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-27 13:20:46,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 13:20:46,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 13:20:46,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853180286] [2022-04-27 13:20:46,962 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 13:20:46,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924336139] [2022-04-27 13:20:46,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924336139] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 13:20:46,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 13:20:46,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-27 13:20:46,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943486218] [2022-04-27 13:20:46,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 13:20:46,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 33 [2022-04-27 13:20:46,968 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 13:20:46,968 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-27 13:20:46,987 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 13:20:46,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 13:20:46,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 13:20:46,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 13:20:46,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-27 13:20:46,989 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-27 13:20:47,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:47,094 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-04-27 13:20:47,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-27 13:20:47,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 33 [2022-04-27 13:20:47,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 13:20:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-27 13:20:47,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-04-27 13:20:47,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-27 13:20:47,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-04-27 13:20:47,098 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 42 transitions. [2022-04-27 13:20:47,126 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 13:20:47,128 INFO L225 Difference]: With dead ends: 37 [2022-04-27 13:20:47,128 INFO L226 Difference]: Without dead ends: 35 [2022-04-27 13:20:47,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-27 13:20:47,129 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 13:20:47,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 99 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 13:20:47,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-04-27 13:20:47,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2022-04-27 13:20:47,134 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 13:20:47,134 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand has 33 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 13:20:47,135 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand has 33 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 13:20:47,135 INFO L87 Difference]: Start difference. First operand 35 states. Second operand has 33 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 13:20:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:47,137 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-04-27 13:20:47,137 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2022-04-27 13:20:47,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 13:20:47,138 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 13:20:47,138 INFO L74 IsIncluded]: Start isIncluded. First operand has 33 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Second operand 35 states. [2022-04-27 13:20:47,138 INFO L87 Difference]: Start difference. First operand has 33 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Second operand 35 states. [2022-04-27 13:20:47,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:47,141 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-04-27 13:20:47,141 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2022-04-27 13:20:47,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 13:20:47,141 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 13:20:47,141 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 13:20:47,141 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 13:20:47,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 13:20:47,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-04-27 13:20:47,143 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 33 [2022-04-27 13:20:47,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 13:20:47,143 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-04-27 13:20:47,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-27 13:20:47,143 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-04-27 13:20:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-04-27 13:20:47,144 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 13:20:47,144 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-04-27 13:20:47,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-27 13:20:47,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 13:20:47,358 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 13:20:47,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 13:20:47,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1493430927, now seen corresponding path program 1 times [2022-04-27 13:20:47,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 13:20:47,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623986640] [2022-04-27 13:20:47,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 13:20:47,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 13:20:47,377 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 13:20:47,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [192634268] [2022-04-27 13:20:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 13:20:47,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 13:20:47,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 13:20:47,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-27 13:20:47,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-27 13:20:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:47,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjunts are in the unsatisfiable core [2022-04-27 13:20:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:47,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 13:20:49,945 INFO L272 TraceCheckUtils]: 0: Hoare triple {508#true} call ULTIMATE.init(); {508#true} is VALID [2022-04-27 13:20:49,945 INFO L290 TraceCheckUtils]: 1: Hoare triple {508#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {508#true} is VALID [2022-04-27 13:20:49,945 INFO L290 TraceCheckUtils]: 2: Hoare triple {508#true} assume true; {508#true} is VALID [2022-04-27 13:20:49,945 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {508#true} {508#true} #68#return; {508#true} is VALID [2022-04-27 13:20:49,946 INFO L272 TraceCheckUtils]: 4: Hoare triple {508#true} call #t~ret6 := main(); {508#true} is VALID [2022-04-27 13:20:49,946 INFO L290 TraceCheckUtils]: 5: Hoare triple {508#true} havoc ~z~0;havoc ~k~0;havoc ~x~0;havoc ~y~0;havoc ~c~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~z~0 := #t~nondet4;havoc #t~nondet4; {508#true} is VALID [2022-04-27 13:20:49,946 INFO L272 TraceCheckUtils]: 6: Hoare triple {508#true} call assume_abort_if_not((if ~z~0 >= 0 && ~z~0 <= 10 then 1 else 0)); {508#true} is VALID [2022-04-27 13:20:49,946 INFO L290 TraceCheckUtils]: 7: Hoare triple {508#true} ~cond := #in~cond; {508#true} is VALID [2022-04-27 13:20:49,946 INFO L290 TraceCheckUtils]: 8: Hoare triple {508#true} assume !(0 == ~cond); {508#true} is VALID [2022-04-27 13:20:49,946 INFO L290 TraceCheckUtils]: 9: Hoare triple {508#true} assume true; {508#true} is VALID [2022-04-27 13:20:49,946 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {508#true} {508#true} #56#return; {508#true} is VALID [2022-04-27 13:20:49,946 INFO L290 TraceCheckUtils]: 11: Hoare triple {508#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~k~0 := #t~nondet5;havoc #t~nondet5; {508#true} is VALID [2022-04-27 13:20:49,946 INFO L272 TraceCheckUtils]: 12: Hoare triple {508#true} call assume_abort_if_not((if ~k~0 >= 0 && ~k~0 <= 10 then 1 else 0)); {508#true} is VALID [2022-04-27 13:20:49,947 INFO L290 TraceCheckUtils]: 13: Hoare triple {508#true} ~cond := #in~cond; {508#true} is VALID [2022-04-27 13:20:49,947 INFO L290 TraceCheckUtils]: 14: Hoare triple {508#true} assume !(0 == ~cond); {508#true} is VALID [2022-04-27 13:20:49,947 INFO L290 TraceCheckUtils]: 15: Hoare triple {508#true} assume true; {508#true} is VALID [2022-04-27 13:20:49,947 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {508#true} {508#true} #58#return; {508#true} is VALID [2022-04-27 13:20:49,947 INFO L272 TraceCheckUtils]: 17: Hoare triple {508#true} call assume_abort_if_not((if ~z~0 >= 1 then 1 else 0)); {508#true} is VALID [2022-04-27 13:20:49,947 INFO L290 TraceCheckUtils]: 18: Hoare triple {508#true} ~cond := #in~cond; {508#true} is VALID [2022-04-27 13:20:49,947 INFO L290 TraceCheckUtils]: 19: Hoare triple {508#true} assume !(0 == ~cond); {508#true} is VALID [2022-04-27 13:20:49,947 INFO L290 TraceCheckUtils]: 20: Hoare triple {508#true} assume true; {508#true} is VALID [2022-04-27 13:20:49,947 INFO L284 TraceCheckUtils]: 21: Hoare quadruple {508#true} {508#true} #60#return; {508#true} is VALID [2022-04-27 13:20:49,948 INFO L272 TraceCheckUtils]: 22: Hoare triple {508#true} call assume_abort_if_not((if ~k~0 >= 1 then 1 else 0)); {508#true} is VALID [2022-04-27 13:20:49,948 INFO L290 TraceCheckUtils]: 23: Hoare triple {508#true} ~cond := #in~cond; {508#true} is VALID [2022-04-27 13:20:49,948 INFO L290 TraceCheckUtils]: 24: Hoare triple {508#true} assume !(0 == ~cond); {508#true} is VALID [2022-04-27 13:20:49,948 INFO L290 TraceCheckUtils]: 25: Hoare triple {508#true} assume true; {508#true} is VALID [2022-04-27 13:20:49,948 INFO L284 TraceCheckUtils]: 26: Hoare quadruple {508#true} {508#true} #62#return; {508#true} is VALID [2022-04-27 13:20:49,948 INFO L290 TraceCheckUtils]: 27: Hoare triple {508#true} ~x~0 := 1;~y~0 := ~z~0;~c~0 := 1; {508#true} is VALID [2022-04-27 13:20:49,948 INFO L290 TraceCheckUtils]: 28: Hoare triple {508#true} assume !false; {508#true} is VALID [2022-04-27 13:20:49,948 INFO L272 TraceCheckUtils]: 29: Hoare triple {508#true} call __VERIFIER_assert((if 0 == 1 + (~x~0 * ~z~0 - ~x~0 - ~y~0) then 1 else 0)); {508#true} is VALID [2022-04-27 13:20:49,949 INFO L290 TraceCheckUtils]: 30: Hoare triple {508#true} ~cond := #in~cond; {603#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-27 13:20:49,949 INFO L290 TraceCheckUtils]: 31: Hoare triple {603#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {607#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 13:20:49,950 INFO L290 TraceCheckUtils]: 32: Hoare triple {607#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {607#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 13:20:49,950 INFO L284 TraceCheckUtils]: 33: Hoare quadruple {607#(not (= |__VERIFIER_assert_#in~cond| 0))} {508#true} #64#return; {614#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID [2022-04-27 13:20:49,951 INFO L290 TraceCheckUtils]: 34: Hoare triple {614#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} assume !(~c~0 < ~k~0); {614#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID [2022-04-27 13:20:49,951 INFO L290 TraceCheckUtils]: 35: Hoare triple {614#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} ~x~0 := ~x~0 * (~z~0 - 1); {621#(exists ((v_main_~x~0_11 Int) (main_~z~0 Int)) (and (= (+ (* v_main_~x~0_11 main_~z~0) 1) (+ v_main_~x~0_11 main_~y~0)) (= main_~x~0 (* v_main_~x~0_11 (+ (- 1) main_~z~0)))))} is VALID [2022-04-27 13:20:49,952 INFO L272 TraceCheckUtils]: 36: Hoare triple {621#(exists ((v_main_~x~0_11 Int) (main_~z~0 Int)) (and (= (+ (* v_main_~x~0_11 main_~z~0) 1) (+ v_main_~x~0_11 main_~y~0)) (= main_~x~0 (* v_main_~x~0_11 (+ (- 1) main_~z~0)))))} call __VERIFIER_assert((if 0 == 1 + ~x~0 - ~y~0 then 1 else 0)); {625#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 13:20:49,953 INFO L290 TraceCheckUtils]: 37: Hoare triple {625#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {629#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 13:20:49,953 INFO L290 TraceCheckUtils]: 38: Hoare triple {629#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {509#false} is VALID [2022-04-27 13:20:49,953 INFO L290 TraceCheckUtils]: 39: Hoare triple {509#false} assume !false; {509#false} is VALID [2022-04-27 13:20:49,953 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-27 13:20:49,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-27 13:20:50,251 INFO L290 TraceCheckUtils]: 39: Hoare triple {509#false} assume !false; {509#false} is VALID [2022-04-27 13:20:50,251 INFO L290 TraceCheckUtils]: 38: Hoare triple {629#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {509#false} is VALID [2022-04-27 13:20:50,252 INFO L290 TraceCheckUtils]: 37: Hoare triple {625#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {629#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 13:20:50,252 INFO L272 TraceCheckUtils]: 36: Hoare triple {645#(= (+ main_~x~0 1) main_~y~0)} call __VERIFIER_assert((if 0 == 1 + ~x~0 - ~y~0 then 1 else 0)); {625#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 13:20:50,253 INFO L290 TraceCheckUtils]: 35: Hoare triple {614#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} ~x~0 := ~x~0 * (~z~0 - 1); {645#(= (+ main_~x~0 1) main_~y~0)} is VALID [2022-04-27 13:20:50,253 INFO L290 TraceCheckUtils]: 34: Hoare triple {614#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} assume !(~c~0 < ~k~0); {614#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID [2022-04-27 13:20:50,254 INFO L284 TraceCheckUtils]: 33: Hoare quadruple {607#(not (= |__VERIFIER_assert_#in~cond| 0))} {508#true} #64#return; {614#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID [2022-04-27 13:20:50,255 INFO L290 TraceCheckUtils]: 32: Hoare triple {607#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {607#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 13:20:50,255 INFO L290 TraceCheckUtils]: 31: Hoare triple {664#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {607#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 13:20:50,256 INFO L290 TraceCheckUtils]: 30: Hoare triple {508#true} ~cond := #in~cond; {664#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-27 13:20:50,256 INFO L272 TraceCheckUtils]: 29: Hoare triple {508#true} call __VERIFIER_assert((if 0 == 1 + (~x~0 * ~z~0 - ~x~0 - ~y~0) then 1 else 0)); {508#true} is VALID [2022-04-27 13:20:50,256 INFO L290 TraceCheckUtils]: 28: Hoare triple {508#true} assume !false; {508#true} is VALID [2022-04-27 13:20:50,256 INFO L290 TraceCheckUtils]: 27: Hoare triple {508#true} ~x~0 := 1;~y~0 := ~z~0;~c~0 := 1; {508#true} is VALID [2022-04-27 13:20:50,256 INFO L284 TraceCheckUtils]: 26: Hoare quadruple {508#true} {508#true} #62#return; {508#true} is VALID [2022-04-27 13:20:50,256 INFO L290 TraceCheckUtils]: 25: Hoare triple {508#true} assume true; {508#true} is VALID [2022-04-27 13:20:50,257 INFO L290 TraceCheckUtils]: 24: Hoare triple {508#true} assume !(0 == ~cond); {508#true} is VALID [2022-04-27 13:20:50,257 INFO L290 TraceCheckUtils]: 23: Hoare triple {508#true} ~cond := #in~cond; {508#true} is VALID [2022-04-27 13:20:50,257 INFO L272 TraceCheckUtils]: 22: Hoare triple {508#true} call assume_abort_if_not((if ~k~0 >= 1 then 1 else 0)); {508#true} is VALID [2022-04-27 13:20:50,258 INFO L284 TraceCheckUtils]: 21: Hoare quadruple {508#true} {508#true} #60#return; {508#true} is VALID [2022-04-27 13:20:50,258 INFO L290 TraceCheckUtils]: 20: Hoare triple {508#true} assume true; {508#true} is VALID [2022-04-27 13:20:50,258 INFO L290 TraceCheckUtils]: 19: Hoare triple {508#true} assume !(0 == ~cond); {508#true} is VALID [2022-04-27 13:20:50,260 INFO L290 TraceCheckUtils]: 18: Hoare triple {508#true} ~cond := #in~cond; {508#true} is VALID [2022-04-27 13:20:50,260 INFO L272 TraceCheckUtils]: 17: Hoare triple {508#true} call assume_abort_if_not((if ~z~0 >= 1 then 1 else 0)); {508#true} is VALID [2022-04-27 13:20:50,260 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {508#true} {508#true} #58#return; {508#true} is VALID [2022-04-27 13:20:50,260 INFO L290 TraceCheckUtils]: 15: Hoare triple {508#true} assume true; {508#true} is VALID [2022-04-27 13:20:50,261 INFO L290 TraceCheckUtils]: 14: Hoare triple {508#true} assume !(0 == ~cond); {508#true} is VALID [2022-04-27 13:20:50,261 INFO L290 TraceCheckUtils]: 13: Hoare triple {508#true} ~cond := #in~cond; {508#true} is VALID [2022-04-27 13:20:50,261 INFO L272 TraceCheckUtils]: 12: Hoare triple {508#true} call assume_abort_if_not((if ~k~0 >= 0 && ~k~0 <= 10 then 1 else 0)); {508#true} is VALID [2022-04-27 13:20:50,262 INFO L290 TraceCheckUtils]: 11: Hoare triple {508#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~k~0 := #t~nondet5;havoc #t~nondet5; {508#true} is VALID [2022-04-27 13:20:50,262 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {508#true} {508#true} #56#return; {508#true} is VALID [2022-04-27 13:20:50,267 INFO L290 TraceCheckUtils]: 9: Hoare triple {508#true} assume true; {508#true} is VALID [2022-04-27 13:20:50,267 INFO L290 TraceCheckUtils]: 8: Hoare triple {508#true} assume !(0 == ~cond); {508#true} is VALID [2022-04-27 13:20:50,267 INFO L290 TraceCheckUtils]: 7: Hoare triple {508#true} ~cond := #in~cond; {508#true} is VALID [2022-04-27 13:20:50,267 INFO L272 TraceCheckUtils]: 6: Hoare triple {508#true} call assume_abort_if_not((if ~z~0 >= 0 && ~z~0 <= 10 then 1 else 0)); {508#true} is VALID [2022-04-27 13:20:50,267 INFO L290 TraceCheckUtils]: 5: Hoare triple {508#true} havoc ~z~0;havoc ~k~0;havoc ~x~0;havoc ~y~0;havoc ~c~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~z~0 := #t~nondet4;havoc #t~nondet4; {508#true} is VALID [2022-04-27 13:20:50,267 INFO L272 TraceCheckUtils]: 4: Hoare triple {508#true} call #t~ret6 := main(); {508#true} is VALID [2022-04-27 13:20:50,267 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {508#true} {508#true} #68#return; {508#true} is VALID [2022-04-27 13:20:50,267 INFO L290 TraceCheckUtils]: 2: Hoare triple {508#true} assume true; {508#true} is VALID [2022-04-27 13:20:50,267 INFO L290 TraceCheckUtils]: 1: Hoare triple {508#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {508#true} is VALID [2022-04-27 13:20:50,268 INFO L272 TraceCheckUtils]: 0: Hoare triple {508#true} call ULTIMATE.init(); {508#true} is VALID [2022-04-27 13:20:50,268 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-27 13:20:50,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 13:20:50,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623986640] [2022-04-27 13:20:50,272 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 13:20:50,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192634268] [2022-04-27 13:20:50,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192634268] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-27 13:20:50,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-27 13:20:50,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2022-04-27 13:20:50,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262592652] [2022-04-27 13:20:50,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-27 13:20:50,274 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2022-04-27 13:20:50,274 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 13:20:50,274 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-27 13:20:50,300 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 13:20:50,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-27 13:20:50,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 13:20:50,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-27 13:20:50,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-27 13:20:50,301 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-27 13:20:50,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:50,503 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-04-27 13:20:50,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-27 13:20:50,503 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2022-04-27 13:20:50,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 13:20:50,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-27 13:20:50,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2022-04-27 13:20:50,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-27 13:20:50,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2022-04-27 13:20:50,506 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 31 transitions. [2022-04-27 13:20:50,540 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 13:20:50,540 INFO L225 Difference]: With dead ends: 33 [2022-04-27 13:20:50,540 INFO L226 Difference]: Without dead ends: 0 [2022-04-27 13:20:50,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-04-27 13:20:50,541 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 8 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 13:20:50,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 144 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 13:20:50,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-27 13:20:50,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-27 13:20:50,542 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 13:20:50,542 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-04-27 13:20:50,542 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-04-27 13:20:50,542 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-04-27 13:20:50,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:50,543 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 13:20:50,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 13:20:50,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 13:20:50,543 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 13:20:50,543 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-04-27 13:20:50,543 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-04-27 13:20:50,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:50,543 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 13:20:50,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 13:20:50,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 13:20:50,543 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 13:20:50,544 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 13:20:50,544 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 13:20:50,544 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) [2022-04-27 13:20:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-27 13:20:50,544 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2022-04-27 13:20:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 13:20:50,544 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-27 13:20:50,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-27 13:20:50,544 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 13:20:50,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 13:20:50,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 13:20:50,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-27 13:20:50,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-27 13:20:50,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-27 13:20:50,797 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 9) no Hoare annotation was computed. [2022-04-27 13:20:50,797 INFO L899 garLoopResultBuilder]: For program point reach_errorENTRY(line 9) no Hoare annotation was computed. [2022-04-27 13:20:50,797 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 9) no Hoare annotation was computed. [2022-04-27 13:20:50,797 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 12 14) the Hoare annotation is: true [2022-04-27 13:20:50,798 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-04-27 13:20:50,798 INFO L899 garLoopResultBuilder]: For program point L13-2(lines 12 14) no Hoare annotation was computed. [2022-04-27 13:20:50,798 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 12 14) no Hoare annotation was computed. [2022-04-27 13:20:50,798 INFO L902 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: true [2022-04-27 13:20:50,798 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 22 52) no Hoare annotation was computed. [2022-04-27 13:20:50,800 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (= (+ main_~x~0 1) main_~y~0) [2022-04-27 13:20:50,800 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-04-27 13:20:50,802 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 22 52) no Hoare annotation was computed. [2022-04-27 13:20:50,803 INFO L895 garLoopResultBuilder]: At program point L36-2(lines 36 46) the Hoare annotation is: (= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0)) [2022-04-27 13:20:50,803 INFO L899 garLoopResultBuilder]: For program point L36-3(lines 36 46) no Hoare annotation was computed. [2022-04-27 13:20:50,803 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-04-27 13:20:50,803 INFO L902 garLoopResultBuilder]: At program point mainENTRY(lines 22 52) the Hoare annotation is: true [2022-04-27 13:20:50,803 INFO L902 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: true [2022-04-27 13:20:50,803 INFO L902 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: true [2022-04-27 13:20:50,803 INFO L902 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: true [2022-04-27 13:20:50,803 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-04-27 13:20:50,803 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0)) [2022-04-27 13:20:50,803 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 36 46) no Hoare annotation was computed. [2022-04-27 13:20:50,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-27 13:20:50,804 INFO L895 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-27 13:20:50,804 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-27 13:20:50,804 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-27 13:20:50,804 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-27 13:20:50,804 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-27 13:20:50,804 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-27 13:20:50,804 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed. [2022-04-27 13:20:50,804 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 19) no Hoare annotation was computed. [2022-04-27 13:20:50,804 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 15 21) the Hoare annotation is: true [2022-04-27 13:20:50,804 INFO L899 garLoopResultBuilder]: For program point L16-2(lines 15 21) no Hoare annotation was computed. [2022-04-27 13:20:50,804 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 15 21) no Hoare annotation was computed. [2022-04-27 13:20:50,805 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2022-04-27 13:20:50,808 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-27 13:20:50,809 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 13:20:50,812 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-27 13:20:50,812 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 13:20:50,812 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-04-27 13:20:50,812 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-27 13:20:50,813 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-27 13:20:50,813 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 13:20:50,813 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-27 13:20:50,813 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-04-27 13:20:50,813 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-04-27 13:20:50,813 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-04-27 13:20:50,813 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-27 13:20:50,813 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-27 13:20:50,813 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-27 13:20:50,814 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-27 13:20:50,814 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2022-04-27 13:20:50,814 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-04-27 13:20:50,814 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-04-27 13:20:50,814 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-04-27 13:20:50,814 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2022-04-27 13:20:50,815 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2022-04-27 13:20:50,816 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2022-04-27 13:20:50,816 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-27 13:20:50,816 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2022-04-27 13:20:50,816 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2022-04-27 13:20:50,816 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-27 13:20:50,816 INFO L163 areAnnotationChecker]: CFG has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-27 13:20:50,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 01:20:50 BoogieIcfgContainer [2022-04-27 13:20:50,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 13:20:50,822 INFO L158 Benchmark]: Toolchain (without parser) took 5333.95ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 136.1MB in the beginning and 78.5MB in the end (delta: 57.7MB). Peak memory consumption was 95.7MB. Max. memory is 8.0GB. [2022-04-27 13:20:50,823 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 152.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 13:20:50,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.95ms. Allocated memory is still 186.6MB. Free memory was 135.9MB in the beginning and 160.8MB in the end (delta: -25.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-04-27 13:20:50,823 INFO L158 Benchmark]: Boogie Preprocessor took 31.84ms. Allocated memory is still 186.6MB. Free memory was 160.8MB in the beginning and 159.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 13:20:50,823 INFO L158 Benchmark]: RCFGBuilder took 262.17ms. Allocated memory is still 186.6MB. Free memory was 159.5MB in the beginning and 148.3MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-27 13:20:50,824 INFO L158 Benchmark]: TraceAbstraction took 4808.86ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 147.9MB in the beginning and 78.5MB in the end (delta: 69.5MB). Peak memory consumption was 108.5MB. Max. memory is 8.0GB. [2022-04-27 13:20:50,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 152.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 225.95ms. Allocated memory is still 186.6MB. Free memory was 135.9MB in the beginning and 160.8MB in the end (delta: -25.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.84ms. Allocated memory is still 186.6MB. Free memory was 160.8MB in the beginning and 159.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 262.17ms. Allocated memory is still 186.6MB. Free memory was 159.5MB in the beginning and 148.3MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 4808.86ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 147.9MB in the beginning and 78.5MB in the end (delta: 69.5MB). Peak memory consumption was 108.5MB. 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: 18]: 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 6 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 276 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 195 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 81 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 23 PreInvPairs, 31 NumberOfFragments, 39 HoareAnnotationTreeSize, 23 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 142 ConstructedInterpolants, 1 QuantifiedInterpolants, 246 SizeOfPredicates, 4 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 98/100 InterpolantCoveringCapability, 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 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: z * x + 1 == y + x RESULT: Ultimate proved your program to be correct! [2022-04-27 13:20:50,840 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...