/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/ldv-regression/test21-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:08:08,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:08:08,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:08:08,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-31 00:08:08,374 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 [2023-03-31 00:08:08,401 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:08:08,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:08:08,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:08:08,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:08:08,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:08:08,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:08:08,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:08:08,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:08:08,404 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:08:08,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:08:08,405 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:08:08,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:08:08,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:08:08,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:08:08,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:08:08,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:08:08,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:08:08,406 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:08:08,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:08:08,406 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:08:08,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:08:08,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:08:08,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:08:08,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:08:08,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:08:08,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:08:08,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:08:08,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:08:08,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:08:08,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:08:08,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:08:08,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:08:08,408 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:08:08,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:08:08,408 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:08:08,408 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:08:08,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:08:08,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:08:08,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:08:08,622 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:08:08,623 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:08:08,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test21-2.c [2023-03-31 00:08:09,702 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:08:09,907 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:08:09,907 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test21-2.c [2023-03-31 00:08:09,911 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b195e3688/2b7dac611b6c4ac4a670964d4b8cd042/FLAGfef3952a9 [2023-03-31 00:08:09,922 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b195e3688/2b7dac611b6c4ac4a670964d4b8cd042 [2023-03-31 00:08:09,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:08:09,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:08:09,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:08:09,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:08:09,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:08:09,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:08:09" (1/1) ... [2023-03-31 00:08:09,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1effe281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:09, skipping insertion in model container [2023-03-31 00:08:09,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:08:09" (1/1) ... [2023-03-31 00:08:09,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:08:09,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:08:10,060 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test21-2.c[892,905] [2023-03-31 00:08:10,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:08:10,072 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:08:10,085 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test21-2.c[892,905] [2023-03-31 00:08:10,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:08:10,100 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:08:10,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10 WrapperNode [2023-03-31 00:08:10,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:08:10,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:08:10,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:08:10,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:08:10,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10" (1/1) ... [2023-03-31 00:08:10,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10" (1/1) ... [2023-03-31 00:08:10,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10" (1/1) ... [2023-03-31 00:08:10,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10" (1/1) ... [2023-03-31 00:08:10,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10" (1/1) ... [2023-03-31 00:08:10,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10" (1/1) ... [2023-03-31 00:08:10,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10" (1/1) ... [2023-03-31 00:08:10,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10" (1/1) ... [2023-03-31 00:08:10,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:08:10,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:08:10,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:08:10,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:08:10,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10" (1/1) ... [2023-03-31 00:08:10,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:08:10,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:08:10,170 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) [2023-03-31 00:08:10,189 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 [2023-03-31 00:08:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:08:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:08:10,210 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:08:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 00:08:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2023-03-31 00:08:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 00:08:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:08:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:08:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:08:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:08:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:08:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:08:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 00:08:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 00:08:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:08:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2023-03-31 00:08:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 00:08:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:08:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:08:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:08:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:08:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:08:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:08:10,285 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:08:10,287 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:08:10,402 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:08:10,406 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:08:10,406 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 00:08:10,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:08:10 BoogieIcfgContainer [2023-03-31 00:08:10,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:08:10,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:08:10,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:08:10,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:08:10,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:08:09" (1/3) ... [2023-03-31 00:08:10,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634c87a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:08:10, skipping insertion in model container [2023-03-31 00:08:10,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:10" (2/3) ... [2023-03-31 00:08:10,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634c87a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:08:10, skipping insertion in model container [2023-03-31 00:08:10,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:08:10" (3/3) ... [2023-03-31 00:08:10,412 INFO L112 eAbstractionObserver]: Analyzing ICFG test21-2.c [2023-03-31 00:08:10,423 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:08:10,423 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:08:10,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:08:10,457 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56b08174, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:08:10,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:08:10,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-31 00:08:10,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-03-31 00:08:10,464 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:08:10,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:08:10,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:08:10,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:08:10,468 INFO L85 PathProgramCache]: Analyzing trace with hash 955990327, now seen corresponding path program 1 times [2023-03-31 00:08:10,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:08:10,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395291396] [2023-03-31 00:08:10,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:08:10,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:08:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 00:08:10,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 00:08:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 00:08:10,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-03-31 00:08:10,617 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 00:08:10,618 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 00:08:10,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:08:10,622 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-03-31 00:08:10,625 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 00:08:10,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 12:08:10 BoogieIcfgContainer [2023-03-31 00:08:10,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 00:08:10,640 INFO L158 Benchmark]: Toolchain (without parser) took 715.32ms. Allocated memory is still 201.3MB. Free memory was 164.5MB in the beginning and 121.5MB in the end (delta: 43.0MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-03-31 00:08:10,640 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 00:08:10,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.73ms. Allocated memory is still 201.3MB. Free memory was 164.5MB in the beginning and 154.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 00:08:10,642 INFO L158 Benchmark]: Boogie Preprocessor took 31.06ms. Allocated memory is still 201.3MB. Free memory was 154.0MB in the beginning and 152.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-31 00:08:10,642 INFO L158 Benchmark]: RCFGBuilder took 274.72ms. Allocated memory is still 201.3MB. Free memory was 152.5MB in the beginning and 140.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-31 00:08:10,645 INFO L158 Benchmark]: TraceAbstraction took 230.89ms. Allocated memory is still 201.3MB. Free memory was 139.4MB in the beginning and 121.5MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-03-31 00:08:10,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 174.73ms. Allocated memory is still 201.3MB. Free memory was 164.5MB in the beginning and 154.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.06ms. Allocated memory is still 201.3MB. Free memory was 154.0MB in the beginning and 152.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 274.72ms. Allocated memory is still 201.3MB. Free memory was 152.5MB in the beginning and 140.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 230.89ms. Allocated memory is still 201.3MB. Free memory was 139.4MB in the beginning and 121.5MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. 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: 44]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L11] struct dummy d1, d2; VAL [\old(d1)={52:51}, \old(d2)={54:50}, d1={4:0}, d2={5:0}] [L34] CALL init() VAL [d1={4:0}, d2={5:0}] [L15] d1.a = __VERIFIER_nondet_int() [L16] d1.b = __VERIFIER_nondet_int() [L18] d2.a = __VERIFIER_nondet_int() [L19] d2.b = __VERIFIER_nondet_int() [L34] RET init() VAL [d1={4:0}, d2={5:0}] [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={5:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={5:0}, pd1={5:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L36] COND TRUE pd1 != 0 && pd1 == pd2 VAL [d1={4:0}, d2={5:0}, pd1={5:0}, pd2={5:0}] [L37] CALL, EXPR check(pd1, pd2) VAL [d1={4:0}, d2={5:0}, s1={5:0}, s2={5:0}] [L29] EXPR s1->a [L29] EXPR s2->b [L29] return s1->a == s2->b; [L37] RET, EXPR check(pd1, pd2) VAL [check(pd1, pd2)=0, d1={4:0}, d2={5:0}, pd1={5:0}, pd2={5:0}] [L37] COND TRUE !check(pd1, pd2) [L44] reach_error() VAL [d1={4:0}, d2={5:0}, pd1={5:0}, pd2={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 27 NumberOfCodeBlocks, 27 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! [2023-03-31 00:08:10,668 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...