/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/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/locks/test_locks_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 11:18:15,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 11:18:15,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 11:18:15,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 11:18:15,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 11:18:15,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 11:18:15,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 11:18:15,343 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-15 11:18:15,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 11:18:15,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 11:18:15,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 11:18:15,352 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-15 11:18:15,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 11:18:15,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-15 11:18:15,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 11:18:15,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 11:18:15,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 11:18:15,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 11:18:15,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-15 11:18:15,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 11:18:15,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 11:18:15,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 11:18:15,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 11:18:15,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 11:18:15,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 11:18:15,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 11:18:15,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 11:18:15,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 11:18:15,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 11:18:15,354 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 11:18:15,354 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 11:18:15,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 11:18:15,354 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-15 11:18:15,354 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 11:18:15,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 11:18:15,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 11:18:15,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 11:18:15,552 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 11:18:15,552 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 11:18:15,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_15-1.c [2022-04-15 11:18:15,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b486d580a/659093db8d93444d9a07cfc7edb4f268/FLAG98252279d [2022-04-15 11:18:15,894 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 11:18:15,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_15-1.c [2022-04-15 11:18:15,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b486d580a/659093db8d93444d9a07cfc7edb4f268/FLAG98252279d [2022-04-15 11:18:16,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b486d580a/659093db8d93444d9a07cfc7edb4f268 [2022-04-15 11:18:16,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 11:18:16,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 11:18:16,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 11:18:16,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 11:18:16,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 11:18:16,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:18:16" (1/1) ... [2022-04-15 11:18:16,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24fbd0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16, skipping insertion in model container [2022-04-15 11:18:16,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:18:16" (1/1) ... [2022-04-15 11:18:16,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 11:18:16,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 11:18:16,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_15-1.c[5654,5667] [2022-04-15 11:18:16,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 11:18:16,489 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 11:18:16,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_15-1.c[5654,5667] [2022-04-15 11:18:16,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 11:18:16,523 INFO L208 MainTranslator]: Completed translation [2022-04-15 11:18:16,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16 WrapperNode [2022-04-15 11:18:16,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 11:18:16,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 11:18:16,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 11:18:16,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 11:18:16,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16" (1/1) ... [2022-04-15 11:18:16,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16" (1/1) ... [2022-04-15 11:18:16,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16" (1/1) ... [2022-04-15 11:18:16,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16" (1/1) ... [2022-04-15 11:18:16,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16" (1/1) ... [2022-04-15 11:18:16,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16" (1/1) ... [2022-04-15 11:18:16,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16" (1/1) ... [2022-04-15 11:18:16,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 11:18:16,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 11:18:16,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 11:18:16,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 11:18:16,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16" (1/1) ... [2022-04-15 11:18:16,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 11:18:16,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 11:18:16,588 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) [2022-04-15 11:18:16,604 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 [2022-04-15 11:18:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 11:18:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 11:18:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 11:18:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 11:18:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 11:18:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 11:18:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 11:18:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 11:18:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 11:18:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 11:18:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 11:18:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 11:18:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 11:18:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 11:18:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 11:18:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 11:18:16,670 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 11:18:16,671 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 11:18:16,932 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 11:18:16,937 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 11:18:16,937 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 11:18:16,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:18:16 BoogieIcfgContainer [2022-04-15 11:18:16,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 11:18:16,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 11:18:16,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 11:18:16,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 11:18:16,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 11:18:16" (1/3) ... [2022-04-15 11:18:16,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cce4c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:18:16, skipping insertion in model container [2022-04-15 11:18:16,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:18:16" (2/3) ... [2022-04-15 11:18:16,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cce4c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:18:16, skipping insertion in model container [2022-04-15 11:18:16,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:18:16" (3/3) ... [2022-04-15 11:18:16,948 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2022-04-15 11:18:16,951 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 11:18:16,951 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 11:18:16,976 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 11:18:16,980 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-15 11:18:16,981 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 11:18:16,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 55 states have internal predecessors, (103), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 11:18:16,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-15 11:18:16,998 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 11:18:16,998 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-15 11:18:16,998 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 11:18:17,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 11:18:17,002 INFO L85 PathProgramCache]: Analyzing trace with hash 208658311, now seen corresponding path program 1 times [2022-04-15 11:18:17,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 11:18:17,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [958118569] [2022-04-15 11:18:17,016 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 11:18:17,016 INFO L85 PathProgramCache]: Analyzing trace with hash 208658311, now seen corresponding path program 2 times [2022-04-15 11:18:17,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 11:18:17,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129959539] [2022-04-15 11:18:17,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 11:18:17,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 11:18:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 11:18:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 11:18:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 11:18:17,228 INFO L290 TraceCheckUtils]: 0: Hoare triple {69#(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(18, 2);call #Ultimate.allocInit(12, 3); {63#true} is VALID [2022-04-15 11:18:17,228 INFO L290 TraceCheckUtils]: 1: Hoare triple {63#true} assume true; {63#true} is VALID [2022-04-15 11:18:17,228 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {63#true} {63#true} #285#return; {63#true} is VALID [2022-04-15 11:18:17,230 INFO L272 TraceCheckUtils]: 0: Hoare triple {63#true} call ULTIMATE.init(); {69#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 11:18:17,230 INFO L290 TraceCheckUtils]: 1: Hoare triple {69#(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(18, 2);call #Ultimate.allocInit(12, 3); {63#true} is VALID [2022-04-15 11:18:17,230 INFO L290 TraceCheckUtils]: 2: Hoare triple {63#true} assume true; {63#true} is VALID [2022-04-15 11:18:17,231 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {63#true} {63#true} #285#return; {63#true} is VALID [2022-04-15 11:18:17,231 INFO L272 TraceCheckUtils]: 4: Hoare triple {63#true} call #t~ret20 := main(); {63#true} is VALID [2022-04-15 11:18:17,232 INFO L290 TraceCheckUtils]: 5: Hoare triple {63#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~p1~0 := #t~nondet4;havoc #t~nondet4;havoc ~lk1~0;assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~p2~0 := #t~nondet5;havoc #t~nondet5;havoc ~lk2~0;assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647;~p3~0 := #t~nondet6;havoc #t~nondet6;havoc ~lk3~0;assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647;~p4~0 := #t~nondet7;havoc #t~nondet7;havoc ~lk4~0;assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647;~p5~0 := #t~nondet8;havoc #t~nondet8;havoc ~lk5~0;assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647;~p6~0 := #t~nondet9;havoc #t~nondet9;havoc ~lk6~0;assume -2147483648 <= #t~nondet10 && #t~nondet10 <= 2147483647;~p7~0 := #t~nondet10;havoc #t~nondet10;havoc ~lk7~0;assume -2147483648 <= #t~nondet11 && #t~nondet11 <= 2147483647;~p8~0 := #t~nondet11;havoc #t~nondet11;havoc ~lk8~0;assume -2147483648 <= #t~nondet12 && #t~nondet12 <= 2147483647;~p9~0 := #t~nondet12;havoc #t~nondet12;havoc ~lk9~0;assume -2147483648 <= #t~nondet13 && #t~nondet13 <= 2147483647;~p10~0 := #t~nondet13;havoc #t~nondet13;havoc ~lk10~0;assume -2147483648 <= #t~nondet14 && #t~nondet14 <= 2147483647;~p11~0 := #t~nondet14;havoc #t~nondet14;havoc ~lk11~0;assume -2147483648 <= #t~nondet15 && #t~nondet15 <= 2147483647;~p12~0 := #t~nondet15;havoc #t~nondet15;havoc ~lk12~0;assume -2147483648 <= #t~nondet16 && #t~nondet16 <= 2147483647;~p13~0 := #t~nondet16;havoc #t~nondet16;havoc ~lk13~0;assume -2147483648 <= #t~nondet17 && #t~nondet17 <= 2147483647;~p14~0 := #t~nondet17;havoc #t~nondet17;havoc ~lk14~0;assume -2147483648 <= #t~nondet18 && #t~nondet18 <= 2147483647;~p15~0 := #t~nondet18;havoc #t~nondet18;havoc ~lk15~0;havoc ~cond~0; {63#true} is VALID [2022-04-15 11:18:17,232 INFO L290 TraceCheckUtils]: 6: Hoare triple {63#true} assume !false;assume -2147483648 <= #t~nondet19 && #t~nondet19 <= 2147483647;~cond~0 := #t~nondet19;havoc #t~nondet19; {63#true} is VALID [2022-04-15 11:18:17,232 INFO L290 TraceCheckUtils]: 7: Hoare triple {63#true} assume !(0 == ~cond~0);~lk1~0 := 0;~lk2~0 := 0;~lk3~0 := 0;~lk4~0 := 0;~lk5~0 := 0;~lk6~0 := 0;~lk7~0 := 0;~lk8~0 := 0;~lk9~0 := 0;~lk10~0 := 0;~lk11~0 := 0;~lk12~0 := 0;~lk13~0 := 0;~lk14~0 := 0;~lk15~0 := 0; {63#true} is VALID [2022-04-15 11:18:17,233 INFO L290 TraceCheckUtils]: 8: Hoare triple {63#true} assume 0 != ~p1~0;~lk1~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,234 INFO L290 TraceCheckUtils]: 9: Hoare triple {68#(= main_~lk1~0 1)} assume !(0 != ~p2~0); {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,234 INFO L290 TraceCheckUtils]: 10: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p3~0;~lk3~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,235 INFO L290 TraceCheckUtils]: 11: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p4~0;~lk4~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,236 INFO L290 TraceCheckUtils]: 12: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p5~0;~lk5~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,239 INFO L290 TraceCheckUtils]: 13: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p6~0;~lk6~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,239 INFO L290 TraceCheckUtils]: 14: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p7~0;~lk7~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,240 INFO L290 TraceCheckUtils]: 15: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p8~0;~lk8~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,241 INFO L290 TraceCheckUtils]: 16: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p9~0;~lk9~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,242 INFO L290 TraceCheckUtils]: 17: Hoare triple {68#(= main_~lk1~0 1)} assume !(0 != ~p10~0); {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,243 INFO L290 TraceCheckUtils]: 18: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p11~0;~lk11~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,243 INFO L290 TraceCheckUtils]: 19: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p12~0;~lk12~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,244 INFO L290 TraceCheckUtils]: 20: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p13~0;~lk13~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,244 INFO L290 TraceCheckUtils]: 21: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p14~0;~lk14~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,245 INFO L290 TraceCheckUtils]: 22: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p15~0;~lk15~0 := 1; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,245 INFO L290 TraceCheckUtils]: 23: Hoare triple {68#(= main_~lk1~0 1)} assume 0 != ~p1~0; {68#(= main_~lk1~0 1)} is VALID [2022-04-15 11:18:17,246 INFO L290 TraceCheckUtils]: 24: Hoare triple {68#(= main_~lk1~0 1)} assume 1 != ~lk1~0; {64#false} is VALID [2022-04-15 11:18:17,246 INFO L290 TraceCheckUtils]: 25: Hoare triple {64#false} assume !false; {64#false} is VALID [2022-04-15 11:18:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 11:18:17,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 11:18:17,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129959539] [2022-04-15 11:18:17,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129959539] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 11:18:17,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 11:18:17,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 11:18:17,250 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 11:18:17,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [958118569] [2022-04-15 11:18:17,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [958118569] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 11:18:17,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 11:18:17,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 11:18:17,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244125923] [2022-04-15 11:18:17,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 11:18:17,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-04-15 11:18:17,256 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 11:18:17,259 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:17,289 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:18:17,290 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 11:18:17,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 11:18:17,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 11:18:17,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 11:18:17,309 INFO L87 Difference]: Start difference. First operand has 60 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 55 states have internal predecessors, (103), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:17,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:18:17,684 INFO L93 Difference]: Finished difference Result 118 states and 211 transitions. [2022-04-15 11:18:17,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-15 11:18:17,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-04-15 11:18:17,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 11:18:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:17,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2022-04-15 11:18:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:17,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2022-04-15 11:18:17,699 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 211 transitions. [2022-04-15 11:18:17,876 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 211 edges. 211 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:18:17,898 INFO L225 Difference]: With dead ends: 118 [2022-04-15 11:18:17,898 INFO L226 Difference]: Without dead ends: 103 [2022-04-15 11:18:17,901 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-15 11:18:17,905 INFO L913 BasicCegarLoop]: 109 mSDtfsCounter, 260 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 11:18:17,906 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 118 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 11:18:17,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-04-15 11:18:17,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 71. [2022-04-15 11:18:17,941 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 11:18:17,942 INFO L82 GeneralOperation]: Start isEquivalent. First operand 103 states. Second operand has 71 states, 67 states have (on average 1.8955223880597014) internal successors, (127), 67 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:17,942 INFO L74 IsIncluded]: Start isIncluded. First operand 103 states. Second operand has 71 states, 67 states have (on average 1.8955223880597014) internal successors, (127), 67 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:17,943 INFO L87 Difference]: Start difference. First operand 103 states. Second operand has 71 states, 67 states have (on average 1.8955223880597014) internal successors, (127), 67 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:17,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:18:17,948 INFO L93 Difference]: Finished difference Result 103 states and 189 transitions. [2022-04-15 11:18:17,948 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 189 transitions. [2022-04-15 11:18:17,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 11:18:17,949 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 11:18:17,950 INFO L74 IsIncluded]: Start isIncluded. First operand has 71 states, 67 states have (on average 1.8955223880597014) internal successors, (127), 67 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 103 states. [2022-04-15 11:18:17,950 INFO L87 Difference]: Start difference. First operand has 71 states, 67 states have (on average 1.8955223880597014) internal successors, (127), 67 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 103 states. [2022-04-15 11:18:17,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:18:17,955 INFO L93 Difference]: Finished difference Result 103 states and 189 transitions. [2022-04-15 11:18:17,955 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 189 transitions. [2022-04-15 11:18:17,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 11:18:17,956 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 11:18:17,956 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 11:18:17,956 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 11:18:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.8955223880597014) internal successors, (127), 67 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 130 transitions. [2022-04-15 11:18:17,963 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 130 transitions. Word has length 26 [2022-04-15 11:18:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 11:18:17,964 INFO L478 AbstractCegarLoop]: Abstraction has 71 states and 130 transitions. [2022-04-15 11:18:17,964 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:17,964 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 71 states and 130 transitions. [2022-04-15 11:18:18,076 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 130 edges. 130 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:18:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 130 transitions. [2022-04-15 11:18:18,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-15 11:18:18,085 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 11:18:18,085 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-15 11:18:18,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 11:18:18,085 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 11:18:18,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 11:18:18,095 INFO L85 PathProgramCache]: Analyzing trace with hash 208665503, now seen corresponding path program 1 times [2022-04-15 11:18:18,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 11:18:18,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [561430089] [2022-04-15 11:18:18,098 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 11:18:18,098 INFO L85 PathProgramCache]: Analyzing trace with hash 208665503, now seen corresponding path program 2 times [2022-04-15 11:18:18,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 11:18:18,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417995621] [2022-04-15 11:18:18,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 11:18:18,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 11:18:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 11:18:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 11:18:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 11:18:18,198 INFO L290 TraceCheckUtils]: 0: Hoare triple {665#(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(18, 2);call #Ultimate.allocInit(12, 3); {659#true} is VALID [2022-04-15 11:18:18,199 INFO L290 TraceCheckUtils]: 1: Hoare triple {659#true} assume true; {659#true} is VALID [2022-04-15 11:18:18,199 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {659#true} {659#true} #285#return; {659#true} is VALID [2022-04-15 11:18:18,200 INFO L272 TraceCheckUtils]: 0: Hoare triple {659#true} call ULTIMATE.init(); {665#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 11:18:18,200 INFO L290 TraceCheckUtils]: 1: Hoare triple {665#(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(18, 2);call #Ultimate.allocInit(12, 3); {659#true} is VALID [2022-04-15 11:18:18,200 INFO L290 TraceCheckUtils]: 2: Hoare triple {659#true} assume true; {659#true} is VALID [2022-04-15 11:18:18,200 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {659#true} {659#true} #285#return; {659#true} is VALID [2022-04-15 11:18:18,200 INFO L272 TraceCheckUtils]: 4: Hoare triple {659#true} call #t~ret20 := main(); {659#true} is VALID [2022-04-15 11:18:18,201 INFO L290 TraceCheckUtils]: 5: Hoare triple {659#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~p1~0 := #t~nondet4;havoc #t~nondet4;havoc ~lk1~0;assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~p2~0 := #t~nondet5;havoc #t~nondet5;havoc ~lk2~0;assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647;~p3~0 := #t~nondet6;havoc #t~nondet6;havoc ~lk3~0;assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647;~p4~0 := #t~nondet7;havoc #t~nondet7;havoc ~lk4~0;assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647;~p5~0 := #t~nondet8;havoc #t~nondet8;havoc ~lk5~0;assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647;~p6~0 := #t~nondet9;havoc #t~nondet9;havoc ~lk6~0;assume -2147483648 <= #t~nondet10 && #t~nondet10 <= 2147483647;~p7~0 := #t~nondet10;havoc #t~nondet10;havoc ~lk7~0;assume -2147483648 <= #t~nondet11 && #t~nondet11 <= 2147483647;~p8~0 := #t~nondet11;havoc #t~nondet11;havoc ~lk8~0;assume -2147483648 <= #t~nondet12 && #t~nondet12 <= 2147483647;~p9~0 := #t~nondet12;havoc #t~nondet12;havoc ~lk9~0;assume -2147483648 <= #t~nondet13 && #t~nondet13 <= 2147483647;~p10~0 := #t~nondet13;havoc #t~nondet13;havoc ~lk10~0;assume -2147483648 <= #t~nondet14 && #t~nondet14 <= 2147483647;~p11~0 := #t~nondet14;havoc #t~nondet14;havoc ~lk11~0;assume -2147483648 <= #t~nondet15 && #t~nondet15 <= 2147483647;~p12~0 := #t~nondet15;havoc #t~nondet15;havoc ~lk12~0;assume -2147483648 <= #t~nondet16 && #t~nondet16 <= 2147483647;~p13~0 := #t~nondet16;havoc #t~nondet16;havoc ~lk13~0;assume -2147483648 <= #t~nondet17 && #t~nondet17 <= 2147483647;~p14~0 := #t~nondet17;havoc #t~nondet17;havoc ~lk14~0;assume -2147483648 <= #t~nondet18 && #t~nondet18 <= 2147483647;~p15~0 := #t~nondet18;havoc #t~nondet18;havoc ~lk15~0;havoc ~cond~0; {659#true} is VALID [2022-04-15 11:18:18,201 INFO L290 TraceCheckUtils]: 6: Hoare triple {659#true} assume !false;assume -2147483648 <= #t~nondet19 && #t~nondet19 <= 2147483647;~cond~0 := #t~nondet19;havoc #t~nondet19; {659#true} is VALID [2022-04-15 11:18:18,201 INFO L290 TraceCheckUtils]: 7: Hoare triple {659#true} assume !(0 == ~cond~0);~lk1~0 := 0;~lk2~0 := 0;~lk3~0 := 0;~lk4~0 := 0;~lk5~0 := 0;~lk6~0 := 0;~lk7~0 := 0;~lk8~0 := 0;~lk9~0 := 0;~lk10~0 := 0;~lk11~0 := 0;~lk12~0 := 0;~lk13~0 := 0;~lk14~0 := 0;~lk15~0 := 0; {659#true} is VALID [2022-04-15 11:18:18,201 INFO L290 TraceCheckUtils]: 8: Hoare triple {659#true} assume 0 != ~p1~0;~lk1~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,202 INFO L290 TraceCheckUtils]: 9: Hoare triple {664#(not (= main_~p1~0 0))} assume !(0 != ~p2~0); {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,202 INFO L290 TraceCheckUtils]: 10: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p3~0;~lk3~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,202 INFO L290 TraceCheckUtils]: 11: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p4~0;~lk4~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,203 INFO L290 TraceCheckUtils]: 12: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p5~0;~lk5~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,203 INFO L290 TraceCheckUtils]: 13: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p6~0;~lk6~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,203 INFO L290 TraceCheckUtils]: 14: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p7~0;~lk7~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,204 INFO L290 TraceCheckUtils]: 15: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p8~0;~lk8~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,205 INFO L290 TraceCheckUtils]: 16: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p9~0;~lk9~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,207 INFO L290 TraceCheckUtils]: 17: Hoare triple {664#(not (= main_~p1~0 0))} assume !(0 != ~p10~0); {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,208 INFO L290 TraceCheckUtils]: 18: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p11~0;~lk11~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,208 INFO L290 TraceCheckUtils]: 19: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p12~0;~lk12~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,208 INFO L290 TraceCheckUtils]: 20: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p13~0;~lk13~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,209 INFO L290 TraceCheckUtils]: 21: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p14~0;~lk14~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,209 INFO L290 TraceCheckUtils]: 22: Hoare triple {664#(not (= main_~p1~0 0))} assume 0 != ~p15~0;~lk15~0 := 1; {664#(not (= main_~p1~0 0))} is VALID [2022-04-15 11:18:18,210 INFO L290 TraceCheckUtils]: 23: Hoare triple {664#(not (= main_~p1~0 0))} assume !(0 != ~p1~0); {660#false} is VALID [2022-04-15 11:18:18,210 INFO L290 TraceCheckUtils]: 24: Hoare triple {660#false} assume !(0 != ~p2~0); {660#false} is VALID [2022-04-15 11:18:18,210 INFO L290 TraceCheckUtils]: 25: Hoare triple {660#false} assume !false; {660#false} is VALID [2022-04-15 11:18:18,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 11:18:18,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 11:18:18,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417995621] [2022-04-15 11:18:18,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417995621] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 11:18:18,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 11:18:18,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 11:18:18,215 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 11:18:18,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [561430089] [2022-04-15 11:18:18,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [561430089] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 11:18:18,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 11:18:18,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 11:18:18,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261426735] [2022-04-15 11:18:18,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 11:18:18,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-04-15 11:18:18,218 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 11:18:18,218 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:18,233 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:18:18,233 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 11:18:18,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 11:18:18,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 11:18:18,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 11:18:18,234 INFO L87 Difference]: Start difference. First operand 71 states and 130 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:18:18,453 INFO L93 Difference]: Finished difference Result 169 states and 315 transitions. [2022-04-15 11:18:18,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-15 11:18:18,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-04-15 11:18:18,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 11:18:18,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:18,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 283 transitions. [2022-04-15 11:18:18,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:18,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 283 transitions. [2022-04-15 11:18:18,461 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 283 transitions. [2022-04-15 11:18:18,661 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 283 edges. 283 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:18:18,663 INFO L225 Difference]: With dead ends: 169 [2022-04-15 11:18:18,664 INFO L226 Difference]: Without dead ends: 104 [2022-04-15 11:18:18,664 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-15 11:18:18,665 INFO L913 BasicCegarLoop]: 156 mSDtfsCounter, 200 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 11:18:18,665 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 163 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 11:18:18,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-04-15 11:18:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2022-04-15 11:18:18,678 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 11:18:18,679 INFO L82 GeneralOperation]: Start isEquivalent. First operand 104 states. Second operand has 102 states, 98 states have (on average 1.8877551020408163) internal successors, (185), 98 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:18,680 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand has 102 states, 98 states have (on average 1.8877551020408163) internal successors, (185), 98 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:18,680 INFO L87 Difference]: Start difference. First operand 104 states. Second operand has 102 states, 98 states have (on average 1.8877551020408163) internal successors, (185), 98 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:18,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:18:18,684 INFO L93 Difference]: Finished difference Result 104 states and 189 transitions. [2022-04-15 11:18:18,684 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 189 transitions. [2022-04-15 11:18:18,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 11:18:18,685 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 11:18:18,685 INFO L74 IsIncluded]: Start isIncluded. First operand has 102 states, 98 states have (on average 1.8877551020408163) internal successors, (185), 98 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 104 states. [2022-04-15 11:18:18,686 INFO L87 Difference]: Start difference. First operand has 102 states, 98 states have (on average 1.8877551020408163) internal successors, (185), 98 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 104 states. [2022-04-15 11:18:18,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:18:18,690 INFO L93 Difference]: Finished difference Result 104 states and 189 transitions. [2022-04-15 11:18:18,690 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 189 transitions. [2022-04-15 11:18:18,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 11:18:18,690 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 11:18:18,690 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 11:18:18,690 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 11:18:18,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 98 states have (on average 1.8877551020408163) internal successors, (185), 98 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 188 transitions. [2022-04-15 11:18:18,694 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 188 transitions. Word has length 26 [2022-04-15 11:18:18,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 11:18:18,695 INFO L478 AbstractCegarLoop]: Abstraction has 102 states and 188 transitions. [2022-04-15 11:18:18,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:18,695 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 102 states and 188 transitions. [2022-04-15 11:18:18,838 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 188 edges. 188 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:18:18,838 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 188 transitions. [2022-04-15 11:18:18,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-15 11:18:18,839 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 11:18:18,839 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-15 11:18:18,839 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-15 11:18:18,839 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 11:18:18,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 11:18:18,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1785486395, now seen corresponding path program 1 times [2022-04-15 11:18:18,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 11:18:18,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1855852665] [2022-04-15 11:18:18,840 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 11:18:18,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1785486395, now seen corresponding path program 2 times [2022-04-15 11:18:18,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 11:18:18,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095252713] [2022-04-15 11:18:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 11:18:18,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 11:18:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 11:18:18,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 11:18:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 11:18:18,899 INFO L290 TraceCheckUtils]: 0: Hoare triple {1427#(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(18, 2);call #Ultimate.allocInit(12, 3); {1421#true} is VALID [2022-04-15 11:18:18,899 INFO L290 TraceCheckUtils]: 1: Hoare triple {1421#true} assume true; {1421#true} is VALID [2022-04-15 11:18:18,900 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1421#true} {1421#true} #285#return; {1421#true} is VALID [2022-04-15 11:18:18,907 INFO L272 TraceCheckUtils]: 0: Hoare triple {1421#true} call ULTIMATE.init(); {1427#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 11:18:18,907 INFO L290 TraceCheckUtils]: 1: Hoare triple {1427#(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(18, 2);call #Ultimate.allocInit(12, 3); {1421#true} is VALID [2022-04-15 11:18:18,908 INFO L290 TraceCheckUtils]: 2: Hoare triple {1421#true} assume true; {1421#true} is VALID [2022-04-15 11:18:18,908 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1421#true} {1421#true} #285#return; {1421#true} is VALID [2022-04-15 11:18:18,908 INFO L272 TraceCheckUtils]: 4: Hoare triple {1421#true} call #t~ret20 := main(); {1421#true} is VALID [2022-04-15 11:18:18,908 INFO L290 TraceCheckUtils]: 5: Hoare triple {1421#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~p1~0 := #t~nondet4;havoc #t~nondet4;havoc ~lk1~0;assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~p2~0 := #t~nondet5;havoc #t~nondet5;havoc ~lk2~0;assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647;~p3~0 := #t~nondet6;havoc #t~nondet6;havoc ~lk3~0;assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647;~p4~0 := #t~nondet7;havoc #t~nondet7;havoc ~lk4~0;assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647;~p5~0 := #t~nondet8;havoc #t~nondet8;havoc ~lk5~0;assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647;~p6~0 := #t~nondet9;havoc #t~nondet9;havoc ~lk6~0;assume -2147483648 <= #t~nondet10 && #t~nondet10 <= 2147483647;~p7~0 := #t~nondet10;havoc #t~nondet10;havoc ~lk7~0;assume -2147483648 <= #t~nondet11 && #t~nondet11 <= 2147483647;~p8~0 := #t~nondet11;havoc #t~nondet11;havoc ~lk8~0;assume -2147483648 <= #t~nondet12 && #t~nondet12 <= 2147483647;~p9~0 := #t~nondet12;havoc #t~nondet12;havoc ~lk9~0;assume -2147483648 <= #t~nondet13 && #t~nondet13 <= 2147483647;~p10~0 := #t~nondet13;havoc #t~nondet13;havoc ~lk10~0;assume -2147483648 <= #t~nondet14 && #t~nondet14 <= 2147483647;~p11~0 := #t~nondet14;havoc #t~nondet14;havoc ~lk11~0;assume -2147483648 <= #t~nondet15 && #t~nondet15 <= 2147483647;~p12~0 := #t~nondet15;havoc #t~nondet15;havoc ~lk12~0;assume -2147483648 <= #t~nondet16 && #t~nondet16 <= 2147483647;~p13~0 := #t~nondet16;havoc #t~nondet16;havoc ~lk13~0;assume -2147483648 <= #t~nondet17 && #t~nondet17 <= 2147483647;~p14~0 := #t~nondet17;havoc #t~nondet17;havoc ~lk14~0;assume -2147483648 <= #t~nondet18 && #t~nondet18 <= 2147483647;~p15~0 := #t~nondet18;havoc #t~nondet18;havoc ~lk15~0;havoc ~cond~0; {1421#true} is VALID [2022-04-15 11:18:18,908 INFO L290 TraceCheckUtils]: 6: Hoare triple {1421#true} assume !false;assume -2147483648 <= #t~nondet19 && #t~nondet19 <= 2147483647;~cond~0 := #t~nondet19;havoc #t~nondet19; {1421#true} is VALID [2022-04-15 11:18:18,909 INFO L290 TraceCheckUtils]: 7: Hoare triple {1421#true} assume !(0 == ~cond~0);~lk1~0 := 0;~lk2~0 := 0;~lk3~0 := 0;~lk4~0 := 0;~lk5~0 := 0;~lk6~0 := 0;~lk7~0 := 0;~lk8~0 := 0;~lk9~0 := 0;~lk10~0 := 0;~lk11~0 := 0;~lk12~0 := 0;~lk13~0 := 0;~lk14~0 := 0;~lk15~0 := 0; {1421#true} is VALID [2022-04-15 11:18:18,909 INFO L290 TraceCheckUtils]: 8: Hoare triple {1421#true} assume !(0 != ~p1~0); {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,910 INFO L290 TraceCheckUtils]: 9: Hoare triple {1426#(= main_~p1~0 0)} assume !(0 != ~p2~0); {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,910 INFO L290 TraceCheckUtils]: 10: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p3~0;~lk3~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,910 INFO L290 TraceCheckUtils]: 11: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p4~0;~lk4~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,911 INFO L290 TraceCheckUtils]: 12: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p5~0;~lk5~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,911 INFO L290 TraceCheckUtils]: 13: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p6~0;~lk6~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,911 INFO L290 TraceCheckUtils]: 14: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p7~0;~lk7~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,912 INFO L290 TraceCheckUtils]: 15: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p8~0;~lk8~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,912 INFO L290 TraceCheckUtils]: 16: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p9~0;~lk9~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,912 INFO L290 TraceCheckUtils]: 17: Hoare triple {1426#(= main_~p1~0 0)} assume !(0 != ~p10~0); {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,913 INFO L290 TraceCheckUtils]: 18: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p11~0;~lk11~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,913 INFO L290 TraceCheckUtils]: 19: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p12~0;~lk12~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,914 INFO L290 TraceCheckUtils]: 20: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p13~0;~lk13~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,914 INFO L290 TraceCheckUtils]: 21: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p14~0;~lk14~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,914 INFO L290 TraceCheckUtils]: 22: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p15~0;~lk15~0 := 1; {1426#(= main_~p1~0 0)} is VALID [2022-04-15 11:18:18,915 INFO L290 TraceCheckUtils]: 23: Hoare triple {1426#(= main_~p1~0 0)} assume 0 != ~p1~0; {1422#false} is VALID [2022-04-15 11:18:18,915 INFO L290 TraceCheckUtils]: 24: Hoare triple {1422#false} assume 1 != ~lk1~0; {1422#false} is VALID [2022-04-15 11:18:18,915 INFO L290 TraceCheckUtils]: 25: Hoare triple {1422#false} assume !false; {1422#false} is VALID [2022-04-15 11:18:18,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 11:18:18,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 11:18:18,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095252713] [2022-04-15 11:18:18,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095252713] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 11:18:18,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 11:18:18,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 11:18:18,924 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 11:18:18,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1855852665] [2022-04-15 11:18:18,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1855852665] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 11:18:18,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 11:18:18,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 11:18:18,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706246757] [2022-04-15 11:18:18,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 11:18:18,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-04-15 11:18:18,926 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 11:18:18,926 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:18,940 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:18:18,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 11:18:18,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 11:18:18,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 11:18:18,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 11:18:18,941 INFO L87 Difference]: Start difference. First operand 102 states and 188 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:19,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:18:19,147 INFO L93 Difference]: Finished difference Result 156 states and 283 transitions. [2022-04-15 11:18:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-15 11:18:19,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-04-15 11:18:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 11:18:19,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:19,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 279 transitions. [2022-04-15 11:18:19,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:19,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 279 transitions. [2022-04-15 11:18:19,153 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 279 transitions. [2022-04-15 11:18:19,320 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 279 edges. 279 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:18:19,323 INFO L225 Difference]: With dead ends: 156 [2022-04-15 11:18:19,323 INFO L226 Difference]: Without dead ends: 106 [2022-04-15 11:18:19,324 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-15 11:18:19,326 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 224 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 11:18:19,328 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 134 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 11:18:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-04-15 11:18:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2022-04-15 11:18:19,343 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 11:18:19,344 INFO L82 GeneralOperation]: Start isEquivalent. First operand 106 states. Second operand has 104 states, 100 states have (on average 1.85) internal successors, (185), 100 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:19,344 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand has 104 states, 100 states have (on average 1.85) internal successors, (185), 100 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:19,344 INFO L87 Difference]: Start difference. First operand 106 states. Second operand has 104 states, 100 states have (on average 1.85) internal successors, (185), 100 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:19,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:18:19,347 INFO L93 Difference]: Finished difference Result 106 states and 189 transitions. [2022-04-15 11:18:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 189 transitions. [2022-04-15 11:18:19,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 11:18:19,347 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 11:18:19,348 INFO L74 IsIncluded]: Start isIncluded. First operand has 104 states, 100 states have (on average 1.85) internal successors, (185), 100 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 106 states. [2022-04-15 11:18:19,348 INFO L87 Difference]: Start difference. First operand has 104 states, 100 states have (on average 1.85) internal successors, (185), 100 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 106 states. [2022-04-15 11:18:19,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:18:19,350 INFO L93 Difference]: Finished difference Result 106 states and 189 transitions. [2022-04-15 11:18:19,351 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 189 transitions. [2022-04-15 11:18:19,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 11:18:19,351 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 11:18:19,351 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 11:18:19,351 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 11:18:19,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.85) internal successors, (185), 100 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:19,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 188 transitions. [2022-04-15 11:18:19,354 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 188 transitions. Word has length 26 [2022-04-15 11:18:19,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 11:18:19,354 INFO L478 AbstractCegarLoop]: Abstraction has 104 states and 188 transitions. [2022-04-15 11:18:19,354 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:18:19,354 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 104 states and 188 transitions. [2022-04-15 11:18:19,487 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 188 edges. 188 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:18:19,487 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 188 transitions. [2022-04-15 11:18:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-15 11:18:19,487 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 11:18:19,488 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-15 11:18:19,488 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-15 11:18:19,488 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 11:18:19,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 11:18:19,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1785479203, now seen corresponding path program 1 times [2022-04-15 11:18:19,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 11:18:19,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1952930440] [2022-04-15 11:18:19,489 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 11:18:19,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1785479203, now seen corresponding path program 2 times [2022-04-15 11:18:19,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 11:18:19,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153325179] [2022-04-15 11:18:19,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 11:18:19,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 11:18:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-15 11:18:19,529 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-15 11:18:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-15 11:18:19,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-15 11:18:19,583 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-15 11:18:19,583 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-15 11:18:19,585 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-15 11:18:19,586 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-15 11:18:19,589 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2] [2022-04-15 11:18:19,591 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: L225-1 has no Hoare annotation [2022-04-15 11:18:19,606 WARN L170 areAnnotationChecker]: L225-1 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L225-1 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L231 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L93-2 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L93-2 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L97-1 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L97-1 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L101-1 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L101-1 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L105-1 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L105-1 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L109-1 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L109-1 has no Hoare annotation [2022-04-15 11:18:19,607 WARN L170 areAnnotationChecker]: L113-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L113-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L117-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L117-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L121-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L121-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L125-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L125-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L129-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L129-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L133-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L133-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L137-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L137-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L141-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L141-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L145-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L145-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L149-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L149-1 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L156 has no Hoare annotation [2022-04-15 11:18:19,608 WARN L170 areAnnotationChecker]: L156 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L155-1 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L155-1 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L226-1 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L226-1 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L161 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L161 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L160 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L160 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L166 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L166 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L165-1 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L165-1 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L171 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L171 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L170-1 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L170-1 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L176 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L176 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L175-1 has no Hoare annotation [2022-04-15 11:18:19,609 WARN L170 areAnnotationChecker]: L175-1 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L181 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L181 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L180-1 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L180-1 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L186 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L186 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L185-1 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L185-1 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L191 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L191 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L190-1 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L190-1 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L196 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L196 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L195-1 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L195-1 has no Hoare annotation [2022-04-15 11:18:19,610 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L200-1 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L200-1 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L206 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L206 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L205-1 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L205-1 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L211 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L211 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L210-1 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L210-1 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L215-1 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L215-1 has no Hoare annotation [2022-04-15 11:18:19,611 WARN L170 areAnnotationChecker]: L221 has no Hoare annotation [2022-04-15 11:18:19,612 WARN L170 areAnnotationChecker]: L221 has no Hoare annotation [2022-04-15 11:18:19,612 WARN L170 areAnnotationChecker]: L220 has no Hoare annotation [2022-04-15 11:18:19,612 WARN L170 areAnnotationChecker]: L220 has no Hoare annotation [2022-04-15 11:18:19,612 WARN L170 areAnnotationChecker]: L226 has no Hoare annotation [2022-04-15 11:18:19,612 WARN L170 areAnnotationChecker]: L226 has no Hoare annotation [2022-04-15 11:18:19,612 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-15 11:18:19,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 11:18:19 BoogieIcfgContainer [2022-04-15 11:18:19,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-15 11:18:19,614 INFO L158 Benchmark]: Toolchain (without parser) took 3292.30ms. Allocated memory was 192.9MB in the beginning and 243.3MB in the end (delta: 50.3MB). Free memory was 143.3MB in the beginning and 129.9MB in the end (delta: 13.4MB). Peak memory consumption was 63.0MB. Max. memory is 8.0GB. [2022-04-15 11:18:19,614 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 192.9MB. Free memory was 160.0MB in the beginning and 159.8MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 11:18:19,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.29ms. Allocated memory is still 192.9MB. Free memory was 143.0MB in the beginning and 167.4MB in the end (delta: -24.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-15 11:18:19,615 INFO L158 Benchmark]: Boogie Preprocessor took 26.68ms. Allocated memory is still 192.9MB. Free memory was 167.4MB in the beginning and 165.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-15 11:18:19,615 INFO L158 Benchmark]: RCFGBuilder took 387.11ms. Allocated memory is still 192.9MB. Free memory was 165.3MB in the beginning and 148.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-04-15 11:18:19,616 INFO L158 Benchmark]: TraceAbstraction took 2674.36ms. Allocated memory was 192.9MB in the beginning and 243.3MB in the end (delta: 50.3MB). Free memory was 148.0MB in the beginning and 129.9MB in the end (delta: 18.0MB). Peak memory consumption was 68.9MB. Max. memory is 8.0GB. [2022-04-15 11:18:19,618 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 0.09ms. Allocated memory is still 192.9MB. Free memory was 160.0MB in the beginning and 159.8MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 199.29ms. Allocated memory is still 192.9MB. Free memory was 143.0MB in the beginning and 167.4MB in the end (delta: -24.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.68ms. Allocated memory is still 192.9MB. Free memory was 167.4MB in the beginning and 165.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 387.11ms. Allocated memory is still 192.9MB. Free memory was 165.3MB in the beginning and 148.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 2674.36ms. Allocated memory was 192.9MB in the beginning and 243.3MB in the end (delta: 50.3MB). Free memory was 148.0MB in the beginning and 129.9MB in the end (delta: 18.0MB). Peak memory consumption was 68.9MB. 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: 233]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 [L93] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L101] COND TRUE p3 != 0 [L102] lk3 = 1 [L105] COND TRUE p4 != 0 [L106] lk4 = 1 [L109] COND TRUE p5 != 0 [L110] lk5 = 1 [L113] COND TRUE p6 != 0 [L114] lk6 = 1 [L117] COND TRUE p7 != 0 [L118] lk7 = 1 [L121] COND TRUE p8 != 0 [L122] lk8 = 1 [L125] COND TRUE p9 != 0 [L126] lk9 = 1 [L129] COND FALSE !(p10 != 0) [L133] COND TRUE p11 != 0 [L134] lk11 = 1 [L137] COND TRUE p12 != 0 [L138] lk12 = 1 [L141] COND TRUE p13 != 0 [L142] lk13 = 1 [L145] COND TRUE p14 != 0 [L146] lk14 = 1 [L149] COND TRUE p15 != 0 [L150] lk15 = 1 [L155] COND FALSE !(p1 != 0) [L160] COND FALSE !(p2 != 0) [L233] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 684 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 684 mSDsluCounter, 415 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 290 IncrementalHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 392 mSDtfsCounter, 290 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=3, InterpolantAutomatonStates: 12, 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, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-15 11:18:19,643 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...