/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/nla-digbench-scaling/ps2-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-28 07:37:32,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-28 07:37:32,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-28 07:37:32,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-28 07:37:32,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-28 07:37:32,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-28 07:37:32,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-28 07:37:32,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-28 07:37:32,781 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-28 07:37:32,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-28 07:37:32,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-28 07:37:32,782 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-28 07:37:32,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-28 07:37:32,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-28 07:37:32,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-28 07:37:32,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-28 07:37:32,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-28 07:37:32,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-28 07:37:32,783 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-28 07:37:32,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-28 07:37:32,783 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-28 07:37:32,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-28 07:37:32,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-28 07:37:32,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-28 07:37:32,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-28 07:37:32,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-28 07:37:32,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 07:37:32,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-28 07:37:32,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-28 07:37:32,785 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-28 07:37:32,785 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-28 07:37:32,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-28 07:37:32,785 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-28 07:37:32,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-28 07:37:32,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-28 07:37:32,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-28 07:37:32,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-28 07:37:32,975 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-28 07:37:32,976 INFO L275 PluginConnector]: CDTParser initialized [2022-04-28 07:37:32,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound1.c [2022-04-28 07:37:33,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96466735/9ad17040ff5148948b1981500b29f582/FLAG4a391979a [2022-04-28 07:37:33,385 INFO L306 CDTParser]: Found 1 translation units. [2022-04-28 07:37:33,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound1.c [2022-04-28 07:37:33,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96466735/9ad17040ff5148948b1981500b29f582/FLAG4a391979a [2022-04-28 07:37:33,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96466735/9ad17040ff5148948b1981500b29f582 [2022-04-28 07:37:33,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-28 07:37:33,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-28 07:37:33,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-28 07:37:33,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-28 07:37:33,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-28 07:37:33,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:37:33" (1/1) ... [2022-04-28 07:37:33,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc230b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33, skipping insertion in model container [2022-04-28 07:37:33,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:37:33" (1/1) ... [2022-04-28 07:37:33,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-28 07:37:33,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-28 07:37:33,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound1.c[454,467] [2022-04-28 07:37:33,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 07:37:33,610 INFO L203 MainTranslator]: Completed pre-run [2022-04-28 07:37:33,619 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound1.c[454,467] [2022-04-28 07:37:33,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 07:37:33,637 INFO L208 MainTranslator]: Completed translation [2022-04-28 07:37:33,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33 WrapperNode [2022-04-28 07:37:33,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-28 07:37:33,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-28 07:37:33,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-28 07:37:33,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-28 07:37:33,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33" (1/1) ... [2022-04-28 07:37:33,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33" (1/1) ... [2022-04-28 07:37:33,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33" (1/1) ... [2022-04-28 07:37:33,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33" (1/1) ... [2022-04-28 07:37:33,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33" (1/1) ... [2022-04-28 07:37:33,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33" (1/1) ... [2022-04-28 07:37:33,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33" (1/1) ... [2022-04-28 07:37:33,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-28 07:37:33,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-28 07:37:33,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-28 07:37:33,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-28 07:37:33,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33" (1/1) ... [2022-04-28 07:37:33,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 07:37:33,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 07:37:33,711 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) [2022-04-28 07:37:33,729 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 [2022-04-28 07:37:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-28 07:37:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-28 07:37:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-28 07:37:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-28 07:37:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-28 07:37:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-28 07:37:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-28 07:37:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-28 07:37:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-28 07:37:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-28 07:37:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-28 07:37:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-28 07:37:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-28 07:37:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-28 07:37:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-28 07:37:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-28 07:37:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-28 07:37:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-28 07:37:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-28 07:37:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-28 07:37:33,789 INFO L234 CfgBuilder]: Building ICFG [2022-04-28 07:37:33,790 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-28 07:37:33,910 INFO L275 CfgBuilder]: Performing block encoding [2022-04-28 07:37:33,914 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-28 07:37:33,915 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-28 07:37:33,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:37:33 BoogieIcfgContainer [2022-04-28 07:37:33,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-28 07:37:33,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-28 07:37:33,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-28 07:37:33,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-28 07:37:33,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 07:37:33" (1/3) ... [2022-04-28 07:37:33,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a66fb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:37:33, skipping insertion in model container [2022-04-28 07:37:33,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:37:33" (2/3) ... [2022-04-28 07:37:33,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a66fb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:37:33, skipping insertion in model container [2022-04-28 07:37:33,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:37:33" (3/3) ... [2022-04-28 07:37:33,932 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound1.c [2022-04-28 07:37:33,961 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-28 07:37:33,962 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-28 07:37:34,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-28 07:37:34,013 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5a6c40c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@12dc03cb [2022-04-28 07:37:34,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-28 07:37:34,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-28 07:37:34,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-28 07:37:34,032 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 07:37:34,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 07:37:34,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 07:37:34,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 07:37:34,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1914087080, now seen corresponding path program 1 times [2022-04-28 07:37:34,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 07:37:34,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2146763201] [2022-04-28 07:37:34,062 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-28 07:37:34,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1914087080, now seen corresponding path program 2 times [2022-04-28 07:37:34,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 07:37:34,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619733575] [2022-04-28 07:37:34,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 07:37:34,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 07:37:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 07:37:34,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 07:37:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 07:37:34,232 INFO L290 TraceCheckUtils]: 0: Hoare triple {39#(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(9, 2);call #Ultimate.allocInit(12, 3); {30#true} is VALID [2022-04-28 07:37:34,232 INFO L290 TraceCheckUtils]: 1: Hoare triple {30#true} assume true; {30#true} is VALID [2022-04-28 07:37:34,232 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {30#true} {30#true} #57#return; {30#true} is VALID [2022-04-28 07:37:34,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-28 07:37:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 07:37:34,239 INFO L290 TraceCheckUtils]: 0: Hoare triple {30#true} ~cond := #in~cond; {30#true} is VALID [2022-04-28 07:37:34,239 INFO L290 TraceCheckUtils]: 1: Hoare triple {30#true} assume 0 == ~cond;assume false; {31#false} is VALID [2022-04-28 07:37:34,240 INFO L290 TraceCheckUtils]: 2: Hoare triple {31#false} assume true; {31#false} is VALID [2022-04-28 07:37:34,240 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {31#false} {30#true} #51#return; {31#false} is VALID [2022-04-28 07:37:34,241 INFO L272 TraceCheckUtils]: 0: Hoare triple {30#true} call ULTIMATE.init(); {39#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 07:37:34,241 INFO L290 TraceCheckUtils]: 1: Hoare triple {39#(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(9, 2);call #Ultimate.allocInit(12, 3); {30#true} is VALID [2022-04-28 07:37:34,241 INFO L290 TraceCheckUtils]: 2: Hoare triple {30#true} assume true; {30#true} is VALID [2022-04-28 07:37:34,241 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {30#true} {30#true} #57#return; {30#true} is VALID [2022-04-28 07:37:34,242 INFO L272 TraceCheckUtils]: 4: Hoare triple {30#true} call #t~ret5 := main(); {30#true} is VALID [2022-04-28 07:37:34,242 INFO L290 TraceCheckUtils]: 5: Hoare triple {30#true} havoc ~k~0;havoc ~y~0;havoc ~x~0;havoc ~c~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~k~0 := #t~nondet4;havoc #t~nondet4; {30#true} is VALID [2022-04-28 07:37:34,242 INFO L272 TraceCheckUtils]: 6: Hoare triple {30#true} call assume_abort_if_not((if ~k~0 >= 0 && ~k~0 <= 1 then 1 else 0)); {30#true} is VALID [2022-04-28 07:37:34,242 INFO L290 TraceCheckUtils]: 7: Hoare triple {30#true} ~cond := #in~cond; {30#true} is VALID [2022-04-28 07:37:34,243 INFO L290 TraceCheckUtils]: 8: Hoare triple {30#true} assume 0 == ~cond;assume false; {31#false} is VALID [2022-04-28 07:37:34,243 INFO L290 TraceCheckUtils]: 9: Hoare triple {31#false} assume true; {31#false} is VALID [2022-04-28 07:37:34,243 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {31#false} {30#true} #51#return; {31#false} is VALID [2022-04-28 07:37:34,243 INFO L290 TraceCheckUtils]: 11: Hoare triple {31#false} ~y~0 := 0;~x~0 := 0;~c~0 := 0; {31#false} is VALID [2022-04-28 07:37:34,243 INFO L290 TraceCheckUtils]: 12: Hoare triple {31#false} assume false; {31#false} is VALID [2022-04-28 07:37:34,243 INFO L272 TraceCheckUtils]: 13: Hoare triple {31#false} call __VERIFIER_assert((if 0 == ~y~0 * ~y~0 - 2 * ~x~0 + ~y~0 then 1 else 0)); {31#false} is VALID [2022-04-28 07:37:34,244 INFO L290 TraceCheckUtils]: 14: Hoare triple {31#false} ~cond := #in~cond; {31#false} is VALID [2022-04-28 07:37:34,244 INFO L290 TraceCheckUtils]: 15: Hoare triple {31#false} assume 0 == ~cond; {31#false} is VALID [2022-04-28 07:37:34,244 INFO L290 TraceCheckUtils]: 16: Hoare triple {31#false} assume !false; {31#false} is VALID [2022-04-28 07:37:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 07:37:34,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 07:37:34,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619733575] [2022-04-28 07:37:34,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619733575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 07:37:34,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 07:37:34,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-28 07:37:34,247 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 07:37:34,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2146763201] [2022-04-28 07:37:34,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2146763201] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 07:37:34,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 07:37:34,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-28 07:37:34,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325085510] [2022-04-28 07:37:34,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 07:37:34,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-28 07:37:34,253 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 07:37:34,255 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 07:37:34,288 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 07:37:34,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-28 07:37:34,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 07:37:34,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-28 07:37:34,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-28 07:37:34,309 INFO L87 Difference]: Start difference. First operand has 27 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 07:37:34,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 07:37:34,421 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2022-04-28 07:37:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-28 07:37:34,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-28 07:37:34,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 07:37:34,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 07:37:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2022-04-28 07:37:34,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 07:37:34,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2022-04-28 07:37:34,432 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 56 transitions. [2022-04-28 07:37:34,500 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 07:37:34,509 INFO L225 Difference]: With dead ends: 45 [2022-04-28 07:37:34,509 INFO L226 Difference]: Without dead ends: 22 [2022-04-28 07:37:34,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-28 07:37:34,516 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 07:37:34,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 28 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 07:37:34,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-04-28 07:37:34,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-04-28 07:37:34,547 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 07:37:34,547 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 07:37:34,548 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 07:37:34,549 INFO L87 Difference]: Start difference. First operand 22 states. Second operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 07:37:34,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 07:37:34,559 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-04-28 07:37:34,559 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-04-28 07:37:34,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 07:37:34,560 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 07:37:34,560 INFO L74 IsIncluded]: Start isIncluded. First operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 22 states. [2022-04-28 07:37:34,561 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 22 states. [2022-04-28 07:37:34,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 07:37:34,565 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-04-28 07:37:34,567 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-04-28 07:37:34,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 07:37:34,570 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 07:37:34,570 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 07:37:34,570 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 07:37:34,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 07:37:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-04-28 07:37:34,572 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 17 [2022-04-28 07:37:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 07:37:34,573 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-04-28 07:37:34,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 07:37:34,573 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 22 states and 23 transitions. [2022-04-28 07:37:34,600 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 07:37:34,600 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-04-28 07:37:34,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-28 07:37:34,601 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 07:37:34,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 07:37:34,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-28 07:37:34,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 07:37:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 07:37:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1699034386, now seen corresponding path program 1 times [2022-04-28 07:37:34,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 07:37:34,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1007903123] [2022-04-28 07:37:34,606 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-28 07:37:34,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1699034386, now seen corresponding path program 2 times [2022-04-28 07:37:34,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 07:37:34,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065527362] [2022-04-28 07:37:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 07:37:34,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 07:37:34,629 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 07:37:34,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132655982] [2022-04-28 07:37:34,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-28 07:37:34,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 07:37:34,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 07:37:34,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 07:37:34,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-28 07:37:34,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-28 07:37:34,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-28 07:37:34,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-28 07:37:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 07:37:34,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 07:37:34,829 INFO L272 TraceCheckUtils]: 0: Hoare triple {220#true} call ULTIMATE.init(); {220#true} is VALID [2022-04-28 07:37:34,830 INFO L290 TraceCheckUtils]: 1: Hoare triple {220#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3); {220#true} is VALID [2022-04-28 07:37:34,830 INFO L290 TraceCheckUtils]: 2: Hoare triple {220#true} assume true; {220#true} is VALID [2022-04-28 07:37:34,830 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {220#true} {220#true} #57#return; {220#true} is VALID [2022-04-28 07:37:34,830 INFO L272 TraceCheckUtils]: 4: Hoare triple {220#true} call #t~ret5 := main(); {220#true} is VALID [2022-04-28 07:37:34,830 INFO L290 TraceCheckUtils]: 5: Hoare triple {220#true} havoc ~k~0;havoc ~y~0;havoc ~x~0;havoc ~c~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~k~0 := #t~nondet4;havoc #t~nondet4; {220#true} is VALID [2022-04-28 07:37:34,830 INFO L272 TraceCheckUtils]: 6: Hoare triple {220#true} call assume_abort_if_not((if ~k~0 >= 0 && ~k~0 <= 1 then 1 else 0)); {220#true} is VALID [2022-04-28 07:37:34,831 INFO L290 TraceCheckUtils]: 7: Hoare triple {220#true} ~cond := #in~cond; {220#true} is VALID [2022-04-28 07:37:34,831 INFO L290 TraceCheckUtils]: 8: Hoare triple {220#true} assume !(0 == ~cond); {220#true} is VALID [2022-04-28 07:37:34,831 INFO L290 TraceCheckUtils]: 9: Hoare triple {220#true} assume true; {220#true} is VALID [2022-04-28 07:37:34,831 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {220#true} {220#true} #51#return; {220#true} is VALID [2022-04-28 07:37:34,832 INFO L290 TraceCheckUtils]: 11: Hoare triple {220#true} ~y~0 := 0;~x~0 := 0;~c~0 := 0; {258#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 07:37:34,833 INFO L290 TraceCheckUtils]: 12: Hoare triple {258#(and (= main_~x~0 0) (= main_~y~0 0))} assume !false; {258#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 07:37:34,834 INFO L272 TraceCheckUtils]: 13: Hoare triple {258#(and (= main_~x~0 0) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == ~y~0 * ~y~0 - 2 * ~x~0 + ~y~0 then 1 else 0)); {265#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 07:37:34,834 INFO L290 TraceCheckUtils]: 14: Hoare triple {265#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {269#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 07:37:34,834 INFO L290 TraceCheckUtils]: 15: Hoare triple {269#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {221#false} is VALID [2022-04-28 07:37:34,835 INFO L290 TraceCheckUtils]: 16: Hoare triple {221#false} assume !false; {221#false} is VALID [2022-04-28 07:37:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 07:37:34,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 07:37:34,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 07:37:34,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065527362] [2022-04-28 07:37:34,836 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 07:37:34,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132655982] [2022-04-28 07:37:34,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132655982] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 07:37:34,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 07:37:34,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-28 07:37:34,837 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 07:37:34,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1007903123] [2022-04-28 07:37:34,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1007903123] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 07:37:34,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 07:37:34,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-28 07:37:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491294316] [2022-04-28 07:37:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 07:37:34,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-28 07:37:34,839 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 07:37:34,840 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 07:37:34,852 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 07:37:34,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 07:37:34,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 07:37:34,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 07:37:34,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-28 07:37:34,854 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 07:37:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 07:37:34,930 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-04-28 07:37:34,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-28 07:37:34,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-28 07:37:34,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 07:37:34,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 07:37:34,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2022-04-28 07:37:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 07:37:34,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2022-04-28 07:37:34,934 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 34 transitions. [2022-04-28 07:37:34,957 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 07:37:34,959 INFO L225 Difference]: With dead ends: 32 [2022-04-28 07:37:34,959 INFO L226 Difference]: Without dead ends: 29 [2022-04-28 07:37:34,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-28 07:37:34,960 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 07:37:34,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 72 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 07:37:34,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-04-28 07:37:34,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-04-28 07:37:34,968 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 07:37:34,968 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 07:37:34,969 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 07:37:34,969 INFO L87 Difference]: Start difference. First operand 29 states. Second operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 07:37:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 07:37:34,970 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-04-28 07:37:34,970 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-04-28 07:37:34,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 07:37:34,971 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 07:37:34,971 INFO L74 IsIncluded]: Start isIncluded. First operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 29 states. [2022-04-28 07:37:34,971 INFO L87 Difference]: Start difference. First operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 29 states. [2022-04-28 07:37:34,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 07:37:34,973 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-04-28 07:37:34,973 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-04-28 07:37:34,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 07:37:34,973 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 07:37:34,973 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 07:37:34,973 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 07:37:34,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 07:37:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-04-28 07:37:34,975 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2022-04-28 07:37:34,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 07:37:34,975 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-04-28 07:37:34,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 07:37:34,975 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 29 states and 30 transitions. [2022-04-28 07:37:35,001 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 07:37:35,002 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-04-28 07:37:35,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-28 07:37:35,002 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 07:37:35,003 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 07:37:35,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-28 07:37:35,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 07:37:35,226 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 07:37:35,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 07:37:35,227 INFO L85 PathProgramCache]: Analyzing trace with hash 276758134, now seen corresponding path program 1 times [2022-04-28 07:37:35,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 07:37:35,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [979214534] [2022-04-28 07:37:35,840 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-28 07:37:35,842 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-28 07:37:35,844 INFO L85 PathProgramCache]: Analyzing trace with hash 22480176, now seen corresponding path program 1 times [2022-04-28 07:37:35,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 07:37:35,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080451859] [2022-04-28 07:37:35,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 07:37:35,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 07:37:35,863 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 07:37:35,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [704870967] [2022-04-28 07:37:35,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 07:37:35,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 07:37:35,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 07:37:35,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 07:37:35,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-28 07:37:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 07:37:35,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 14 conjunts are in the unsatisfiable core [2022-04-28 07:37:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 07:37:35,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 07:38:55,100 INFO L272 TraceCheckUtils]: 0: Hoare triple {457#true} call ULTIMATE.init(); {457#true} is VALID [2022-04-28 07:38:55,100 INFO L290 TraceCheckUtils]: 1: Hoare triple {457#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3); {457#true} is VALID [2022-04-28 07:38:55,100 INFO L290 TraceCheckUtils]: 2: Hoare triple {457#true} assume true; {457#true} is VALID [2022-04-28 07:38:55,100 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {457#true} {457#true} #57#return; {457#true} is VALID [2022-04-28 07:38:55,101 INFO L272 TraceCheckUtils]: 4: Hoare triple {457#true} call #t~ret5 := main(); {457#true} is VALID [2022-04-28 07:38:55,101 INFO L290 TraceCheckUtils]: 5: Hoare triple {457#true} havoc ~k~0;havoc ~y~0;havoc ~x~0;havoc ~c~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~k~0 := #t~nondet4;havoc #t~nondet4; {457#true} is VALID [2022-04-28 07:38:55,101 INFO L272 TraceCheckUtils]: 6: Hoare triple {457#true} call assume_abort_if_not((if ~k~0 >= 0 && ~k~0 <= 1 then 1 else 0)); {457#true} is VALID [2022-04-28 07:38:55,101 INFO L290 TraceCheckUtils]: 7: Hoare triple {457#true} ~cond := #in~cond; {483#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-28 07:38:55,102 INFO L290 TraceCheckUtils]: 8: Hoare triple {483#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} assume !(0 == ~cond); {487#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 07:38:55,111 INFO L290 TraceCheckUtils]: 9: Hoare triple {487#(not (= |assume_abort_if_not_#in~cond| 0))} assume true; {487#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 07:38:55,113 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {487#(not (= |assume_abort_if_not_#in~cond| 0))} {457#true} #51#return; {494#(and (<= 0 main_~k~0) (<= main_~k~0 1))} is VALID [2022-04-28 07:38:55,114 INFO L290 TraceCheckUtils]: 11: Hoare triple {494#(and (<= 0 main_~k~0) (<= main_~k~0 1))} ~y~0 := 0;~x~0 := 0;~c~0 := 0; {498#(and (= main_~x~0 0) (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0) (= main_~y~0 0))} is VALID [2022-04-28 07:38:55,117 INFO L290 TraceCheckUtils]: 12: Hoare triple {498#(and (= main_~x~0 0) (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0) (= main_~y~0 0))} [61] L27-2-->L28_primed: Formula: (let ((.cse0 (= v_main_~c~0_7 v_main_~c~0_6)) (.cse1 (= v_main_~x~0_12 v_main_~x~0_11)) (.cse2 (= v_main_~y~0_12 v_main_~y~0_11)) (.cse4 (* (- 1) v_main_~c~0_7)) (.cse5 (= (* v_main_~x~0_12 2) (+ v_main_~y~0_12 (* v_main_~y~0_12 v_main_~y~0_12)))) (.cse6 (* (- 1) v_main_~c~0_6))) (or (and .cse0 .cse1 .cse2 (= v_main_~k~0_8 v_main_~k~0_8)) (let ((.cse3 (div (+ v_main_~c~0_7 .cse6) (- 2)))) (and (< .cse3 (+ (div (+ (- 2) v_main_~k~0_8 .cse4) 2) 2)) (= v_main_~y~0_11 (+ v_main_~y~0_12 (* 2 .cse3))) (< 0 .cse3) (= v_main_~x~0_11 (+ v_main_~x~0_12 (* 2 (* .cse3 .cse3)) .cse3 (* (* v_main_~y~0_12 .cse3) 2))) .cse5 (= (mod (+ v_main_~c~0_7 v_main_~c~0_6) 2) 0))) (and .cse0 .cse1 (or (not .cse5) (not (< v_main_~c~0_7 v_main_~k~0_8))) .cse2) (let ((.cse7 (div (+ v_main_~c~0_7 .cse6 1) (- 2)))) (and (= v_main_~x~0_11 (+ v_main_~x~0_12 v_main_~y~0_12 (* 2 (* .cse7 .cse7)) (* (* v_main_~y~0_12 .cse7) 2) (* 3 .cse7) 1)) (= (mod (+ v_main_~c~0_7 v_main_~c~0_6 1) 2) 0) (< .cse7 (+ (div (+ (- 1) v_main_~k~0_8 .cse4) 2) 1)) (<= 0 .cse7) .cse5 (= v_main_~y~0_11 (+ v_main_~y~0_12 (* 2 .cse7) 1)))))) InVars {main_~y~0=v_main_~y~0_12, main_~c~0=v_main_~c~0_7, main_~x~0=v_main_~x~0_12, main_~k~0=v_main_~k~0_8} OutVars{main_~y~0=v_main_~y~0_11, main_~c~0=v_main_~c~0_6, main_~x~0=v_main_~x~0_11, main_~k~0=v_main_~k~0_8} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {502#(or (and (= main_~x~0 0) (= main_~y~0 0)) (and (exists ((aux_div_aux_mod_main_~c~0_51_84 Int)) (and (< aux_div_aux_mod_main_~c~0_51_84 (+ (div (+ (* (- 1) main_~y~0) 1) (- 2)) 1)) (< (div (+ (* (- 1) main_~y~0) 1) (- 2)) (+ aux_div_aux_mod_main_~c~0_51_84 1)) (= (+ (* 2 (* aux_div_aux_mod_main_~c~0_51_84 aux_div_aux_mod_main_~c~0_51_84)) (* aux_div_aux_mod_main_~c~0_51_84 3) 1) main_~x~0))) (< (div (+ (* (- 1) main_~y~0) 1) (- 2)) 1) (= (mod (+ main_~y~0 1) 2) 0) (<= 0 (div (+ (* (- 1) main_~y~0) 1) (- 2)))))} is VALID [2022-04-28 07:38:55,119 INFO L290 TraceCheckUtils]: 13: Hoare triple {502#(or (and (= main_~x~0 0) (= main_~y~0 0)) (and (exists ((aux_div_aux_mod_main_~c~0_51_84 Int)) (and (< aux_div_aux_mod_main_~c~0_51_84 (+ (div (+ (* (- 1) main_~y~0) 1) (- 2)) 1)) (< (div (+ (* (- 1) main_~y~0) 1) (- 2)) (+ aux_div_aux_mod_main_~c~0_51_84 1)) (= (+ (* 2 (* aux_div_aux_mod_main_~c~0_51_84 aux_div_aux_mod_main_~c~0_51_84)) (* aux_div_aux_mod_main_~c~0_51_84 3) 1) main_~x~0))) (< (div (+ (* (- 1) main_~y~0) 1) (- 2)) 1) (= (mod (+ main_~y~0 1) 2) 0) (<= 0 (div (+ (* (- 1) main_~y~0) 1) (- 2)))))} [60] L28_primed-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {502#(or (and (= main_~x~0 0) (= main_~y~0 0)) (and (exists ((aux_div_aux_mod_main_~c~0_51_84 Int)) (and (< aux_div_aux_mod_main_~c~0_51_84 (+ (div (+ (* (- 1) main_~y~0) 1) (- 2)) 1)) (< (div (+ (* (- 1) main_~y~0) 1) (- 2)) (+ aux_div_aux_mod_main_~c~0_51_84 1)) (= (+ (* 2 (* aux_div_aux_mod_main_~c~0_51_84 aux_div_aux_mod_main_~c~0_51_84)) (* aux_div_aux_mod_main_~c~0_51_84 3) 1) main_~x~0))) (< (div (+ (* (- 1) main_~y~0) 1) (- 2)) 1) (= (mod (+ main_~y~0 1) 2) 0) (<= 0 (div (+ (* (- 1) main_~y~0) 1) (- 2)))))} is VALID [2022-04-28 07:38:55,122 INFO L272 TraceCheckUtils]: 14: Hoare triple {502#(or (and (= main_~x~0 0) (= main_~y~0 0)) (and (exists ((aux_div_aux_mod_main_~c~0_51_84 Int)) (and (< aux_div_aux_mod_main_~c~0_51_84 (+ (div (+ (* (- 1) main_~y~0) 1) (- 2)) 1)) (< (div (+ (* (- 1) main_~y~0) 1) (- 2)) (+ aux_div_aux_mod_main_~c~0_51_84 1)) (= (+ (* 2 (* aux_div_aux_mod_main_~c~0_51_84 aux_div_aux_mod_main_~c~0_51_84)) (* aux_div_aux_mod_main_~c~0_51_84 3) 1) main_~x~0))) (< (div (+ (* (- 1) main_~y~0) 1) (- 2)) 1) (= (mod (+ main_~y~0 1) 2) 0) (<= 0 (div (+ (* (- 1) main_~y~0) 1) (- 2)))))} call __VERIFIER_assert((if 0 == ~y~0 * ~y~0 - 2 * ~x~0 + ~y~0 then 1 else 0)); {509#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 07:38:55,124 INFO L290 TraceCheckUtils]: 15: Hoare triple {509#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {513#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 07:38:55,125 INFO L290 TraceCheckUtils]: 16: Hoare triple {513#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {458#false} is VALID [2022-04-28 07:38:55,125 INFO L290 TraceCheckUtils]: 17: Hoare triple {458#false} assume !false; {458#false} is VALID [2022-04-28 07:38:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 07:38:55,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 07:38:55,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 07:38:55,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080451859] [2022-04-28 07:38:55,126 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 07:38:55,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704870967] [2022-04-28 07:38:55,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704870967] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 07:38:55,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 07:38:55,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-28 07:40:51,120 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 07:40:51,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [979214534] [2022-04-28 07:40:51,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [979214534] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 07:40:51,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 07:40:51,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-28 07:40:51,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780800272] [2022-04-28 07:40:51,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 07:40:51,121 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-04-28 07:40:51,122 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 07:40:51,122 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 07:40:51,141 WARN L143 InductivityCheck]: Transition 522#(and (exists ((v_main_~c~0_9 Int) (v_main_~y~0_15 Int) (v_main_~k~0_BEFORE_RETURN_1 Int) (v_main_~x~0_15 Int) (v___VERIFIER_assert_~cond_BEFORE_RETURN_2 Int)) (and (<= v_main_~k~0_BEFORE_RETURN_1 1) (or (and (= v_main_~x~0_15 0) (= v_main_~y~0_15 0)) (and (= v_main_~x~0_15 0) (not (< v_main_~c~0_9 v_main_~k~0_BEFORE_RETURN_1)) (= v_main_~y~0_15 0)) (and (< 0 (+ (div (+ v_main_~k~0_BEFORE_RETURN_1 (- 2) (* (- 1) v_main_~c~0_9)) 2) 1)) (exists ((aux_div_aux_mod_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103_127 Int) (aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103 Int)) (and (< aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103 (+ aux_div_aux_mod_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103_127 1)) (< aux_div_aux_mod_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103_127 (+ (div (+ v_main_~k~0_BEFORE_RETURN_1 (- 2) (* (- 1) v_main_~c~0_9)) 2) 2)) (< 0 aux_div_aux_mod_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103_127) (= v_main_~x~0_15 (+ (* 2 (* aux_div_aux_mod_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103_127 aux_div_aux_mod_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103_127)) aux_div_aux_mod_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103_127)) (< aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103 (+ (div (+ v_main_~k~0_BEFORE_RETURN_1 (- 2) (* (- 1) v_main_~c~0_9)) 2) 2)) (< 0 aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103) (< aux_div_aux_mod_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103_127 (+ aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103 1)) (= (* aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_67_103 2) v_main_~y~0_15)))) (and (< 0 (+ (div (+ (- 1) v_main_~k~0_BEFORE_RETURN_1 (* (- 1) v_main_~c~0_9)) 2) 1)) (exists ((aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_69_103 Int) (aux_div_v_main_~c~0_BEFORE_RETURN_1_69 Int)) (and (< 0 (+ 1 aux_div_v_main_~c~0_BEFORE_RETURN_1_69)) (< aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_69_103 (+ 1 aux_div_v_main_~c~0_BEFORE_RETURN_1_69)) (< 0 (+ aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_69_103 1)) (= v_main_~y~0_15 (+ (* 2 aux_div_v_main_~c~0_BEFORE_RETURN_1_69) 1)) (= v_main_~x~0_15 (+ (* aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_69_103 3) (* (* aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_69_103 aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_69_103) 2) 1)) (< aux_div_v_main_~c~0_BEFORE_RETURN_1_69 (+ (div (+ (- 1) v_main_~k~0_BEFORE_RETURN_1 (* (- 1) v_main_~c~0_9)) 2) 1)) (< aux_div_v_main_~c~0_BEFORE_RETURN_1_69 (+ aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_69_103 1)) (< aux_div_aux_mod_v_main_~c~0_BEFORE_RETURN_1_69_103 (+ (div (+ (- 1) v_main_~k~0_BEFORE_RETURN_1 (* (- 1) v_main_~c~0_9)) 2) 1)))))) (<= 0 v_main_~k~0_BEFORE_RETURN_1) (or (and (not (= (+ v_main_~y~0_15 (* v_main_~y~0_15 v_main_~y~0_15) (* v_main_~x~0_15 (- 2))) 0)) (= v___VERIFIER_assert_~cond_BEFORE_RETURN_2 0)) (and (= v___VERIFIER_assert_~cond_BEFORE_RETURN_2 1) (= (+ v_main_~y~0_15 (* v_main_~y~0_15 v_main_~y~0_15) (* v_main_~x~0_15 (- 2))) 0))) (<= 0 v_main_~c~0_9) (or (and (= (+ (- 1) (* (- 2) main_~x~0) (* (+ (- 1) main_~y~0) (+ (- 1) main_~y~0)) (* main_~y~0 3)) 0) (= v___VERIFIER_assert_~cond_BEFORE_RETURN_2 1)) (and (not (= (+ (- 1) (* (- 2) main_~x~0) (* (+ (- 1) main_~y~0) (+ (- 1) main_~y~0)) (* main_~y~0 3)) 0)) (= v___VERIFIER_assert_~cond_BEFORE_RETURN_2 0))))) (< main_~c~0 (+ main_~k~0 1))) ( _ , assume !false; , 502#(or (and (= main_~x~0 0) (= main_~y~0 0)) (and (exists ((aux_div_aux_mod_main_~c~0_51_84 Int)) (and (< aux_div_aux_mod_main_~c~0_51_84 (+ (div (+ (* (- 1) main_~y~0) 1) (- 2)) 1)) (< (div (+ (* (- 1) main_~y~0) 1) (- 2)) (+ aux_div_aux_mod_main_~c~0_51_84 1)) (= (+ (* 2 (* aux_div_aux_mod_main_~c~0_51_84 aux_div_aux_mod_main_~c~0_51_84)) (* aux_div_aux_mod_main_~c~0_51_84 3) 1) main_~x~0))) (< (div (+ (* (- 1) main_~y~0) 1) (- 2)) 1) (= (mod (+ main_~y~0 1) 2) 0) (<= 0 (div (+ (* (- 1) main_~y~0) 1) (- 2))))) ) not inductive [2022-04-28 07:40:51,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-28 07:40:51,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-28 07:40:51,342 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inductivity failed at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.checkInductivity(InductivityCheck.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.(InductivityCheck.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.constructInterpolantAutomaton(BasicCegarLoop.java:335) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.constructRefinementAutomaton(AbstractCegarLoop.java:564) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-28 07:40:51,345 INFO L158 Benchmark]: Toolchain (without parser) took 197945.34ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 138.2MB in the beginning and 119.0MB in the end (delta: 19.2MB). Peak memory consumption was 57.6MB. Max. memory is 8.0GB. [2022-04-28 07:40:51,345 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 186.6MB. Free memory was 154.5MB in the beginning and 154.4MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 07:40:51,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.45ms. Allocated memory is still 186.6MB. Free memory was 137.9MB in the beginning and 162.9MB in the end (delta: -25.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-28 07:40:51,346 INFO L158 Benchmark]: Boogie Preprocessor took 34.44ms. Allocated memory is still 186.6MB. Free memory was 162.9MB in the beginning and 161.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-28 07:40:51,346 INFO L158 Benchmark]: RCFGBuilder took 242.47ms. Allocated memory is still 186.6MB. Free memory was 161.2MB in the beginning and 151.1MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-28 07:40:51,346 INFO L158 Benchmark]: TraceAbstraction took 197427.57ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 150.3MB in the beginning and 119.0MB in the end (delta: 31.3MB). Peak memory consumption was 69.5MB. Max. memory is 8.0GB. [2022-04-28 07:40:51,347 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 186.6MB. Free memory was 154.5MB in the beginning and 154.4MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 236.45ms. Allocated memory is still 186.6MB. Free memory was 137.9MB in the beginning and 162.9MB in the end (delta: -25.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.44ms. Allocated memory is still 186.6MB. Free memory was 162.9MB in the beginning and 161.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 242.47ms. Allocated memory is still 186.6MB. Free memory was 161.2MB in the beginning and 151.1MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 197427.57ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 150.3MB in the beginning and 119.0MB in the end (delta: 31.3MB). Peak memory consumption was 69.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inductivity failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inductivity failed: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:145) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-04-28 07:40:51,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...