/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/loop-acceleration/multivar_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 02:44:08,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 02:44:08,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 02:44:08,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 02:44:08,534 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 02:44:08,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 02:44:08,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 02:44:08,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 02:44:08,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 02:44:08,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 02:44:08,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 02:44:08,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 02:44:08,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 02:44:08,562 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 02:44:08,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 02:44:08,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 02:44:08,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 02:44:08,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 02:44:08,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 02:44:08,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 02:44:08,563 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 02:44:08,563 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 02:44:08,563 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 02:44:08,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 02:44:08,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 02:44:08,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 02:44:08,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 02:44:08,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 02:44:08,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:44:08,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 02:44:08,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 02:44:08,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 02:44:08,564 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 02:44:08,564 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 02:44:08,564 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 02:44:08,564 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 02:44:08,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 02:44:08,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 02:44:08,565 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 02:44:08,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 02:44:08,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 02:44:08,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 02:44:08,771 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 02:44:08,779 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 02:44:08,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/multivar_1-2.c [2022-01-10 02:44:08,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05ddd8f7f/593f8d498a574b1680265f7c99a6ec45/FLAGff1b6d0c6 [2022-01-10 02:44:09,166 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 02:44:09,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-2.c [2022-01-10 02:44:09,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05ddd8f7f/593f8d498a574b1680265f7c99a6ec45/FLAGff1b6d0c6 [2022-01-10 02:44:09,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05ddd8f7f/593f8d498a574b1680265f7c99a6ec45 [2022-01-10 02:44:09,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 02:44:09,193 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 02:44:09,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 02:44:09,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 02:44:09,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 02:44:09,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c1e5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09, skipping insertion in model container [2022-01-10 02:44:09,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 02:44:09,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 02:44:09,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-2.c[374,387] [2022-01-10 02:44:09,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:44:09,377 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 02:44:09,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-2.c[374,387] [2022-01-10 02:44:09,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:44:09,396 INFO L208 MainTranslator]: Completed translation [2022-01-10 02:44:09,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09 WrapperNode [2022-01-10 02:44:09,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 02:44:09,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 02:44:09,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 02:44:09,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 02:44:09,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,418 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-01-10 02:44:09,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 02:44:09,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 02:44:09,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 02:44:09,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 02:44:09,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 02:44:09,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 02:44:09,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 02:44:09,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 02:44:09,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (1/1) ... [2022-01-10 02:44:09,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:44:09,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 02:44:09,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 02:44:09,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 02:44:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 02:44:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 02:44:09,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 02:44:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 02:44:09,534 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 02:44:09,535 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 02:44:09,593 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 02:44:09,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 02:44:09,597 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 02:44:09,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:44:09 BoogieIcfgContainer [2022-01-10 02:44:09,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 02:44:09,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 02:44:09,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 02:44:09,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 02:44:09,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:44:09" (1/3) ... [2022-01-10 02:44:09,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e0649c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:44:09, skipping insertion in model container [2022-01-10 02:44:09,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:44:09" (2/3) ... [2022-01-10 02:44:09,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e0649c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:44:09, skipping insertion in model container [2022-01-10 02:44:09,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:44:09" (3/3) ... [2022-01-10 02:44:09,608 INFO L111 eAbstractionObserver]: Analyzing ICFG multivar_1-2.c [2022-01-10 02:44:09,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 02:44:09,612 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 02:44:09,641 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 02:44:09,645 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 02:44:09,646 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 02:44:09,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:44:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 02:44:09,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:44:09,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 02:44:09,659 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:44:09,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:44:09,667 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2022-01-10 02:44:09,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 02:44:09,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633107057] [2022-01-10 02:44:09,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:44:09,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 02:44:09,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 02:44:09,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 02:44:09,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 02:44:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 02:44:09,738 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 02:44:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 02:44:09,759 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-01-10 02:44:09,760 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 02:44:09,761 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 02:44:09,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 02:44:09,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 02:44:09,974 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-10 02:44:09,976 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 02:44:09,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:44:09 BoogieIcfgContainer [2022-01-10 02:44:09,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 02:44:09,990 INFO L158 Benchmark]: Toolchain (without parser) took 795.91ms. Allocated memory was 222.3MB in the beginning and 324.0MB in the end (delta: 101.7MB). Free memory was 165.8MB in the beginning and 269.6MB in the end (delta: -103.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 02:44:09,990 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 222.3MB. Free memory is still 182.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 02:44:09,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.91ms. Allocated memory was 222.3MB in the beginning and 324.0MB in the end (delta: 101.7MB). Free memory was 165.6MB in the beginning and 295.3MB in the end (delta: -129.7MB). Peak memory consumption was 6.4MB. Max. memory is 8.0GB. [2022-01-10 02:44:09,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.00ms. Allocated memory is still 324.0MB. Free memory was 295.3MB in the beginning and 294.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 02:44:09,991 INFO L158 Benchmark]: Boogie Preprocessor took 13.24ms. Allocated memory is still 324.0MB. Free memory was 294.3MB in the beginning and 293.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 02:44:09,992 INFO L158 Benchmark]: RCFGBuilder took 165.08ms. Allocated memory is still 324.0MB. Free memory was 292.7MB in the beginning and 283.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 02:44:09,992 INFO L158 Benchmark]: TraceAbstraction took 390.02ms. Allocated memory is still 324.0MB. Free memory was 282.7MB in the beginning and 269.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-10 02:44:09,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 222.3MB. Free memory is still 182.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 200.91ms. Allocated memory was 222.3MB in the beginning and 324.0MB in the end (delta: 101.7MB). Free memory was 165.6MB in the beginning and 295.3MB in the end (delta: -129.7MB). Peak memory consumption was 6.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.00ms. Allocated memory is still 324.0MB. Free memory was 295.3MB in the beginning and 294.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.24ms. Allocated memory is still 324.0MB. Free memory was 294.3MB in the beginning and 293.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 165.08ms. Allocated memory is still 324.0MB. Free memory was 292.7MB in the beginning and 283.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 390.02ms. Allocated memory is still 324.0MB. Free memory was 282.7MB in the beginning and 269.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. 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 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] unsigned int x = __VERIFIER_nondet_uint(); [L15] unsigned int y = x + 1; VAL [x=2147483648, y=2147483649] [L17] COND FALSE !(x < 1024) VAL [x=2147483648, y=2147483649] [L22] CALL __VERIFIER_assert(x == y) [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2022-01-10 02:44:10,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...