/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-18 02:59:24,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 02:59:24,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 02:59:24,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-18 02:59:24,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 02:59:24,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 02:59:24,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 02:59:24,389 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-18 02:59:24,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 02:59:24,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 02:59:24,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 02:59:24,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 02:59:24,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 02:59:24,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 02:59:24,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 02:59:24,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 02:59:24,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 02:59:24,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 02:59:24,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 02:59:24,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 02:59:24,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 02:59:24,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 02:59:24,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 02:59:24,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 02:59:24,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 02:59:24,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-18 02:59:24,397 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-18 02:59:24,397 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-18 02:59:24,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 02:59:24,398 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-18 02:59:24,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 02:59:24,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 02:59:24,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 02:59:24,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 02:59:24,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 02:59:24,602 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 02:59:24,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound5.c [2022-03-18 02:59:24,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54cd61548/83f7f23956c247309e2a958642269284/FLAGd5a82b771 [2022-03-18 02:59:25,005 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 02:59:25,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound5.c [2022-03-18 02:59:25,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54cd61548/83f7f23956c247309e2a958642269284/FLAGd5a82b771 [2022-03-18 02:59:25,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54cd61548/83f7f23956c247309e2a958642269284 [2022-03-18 02:59:25,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 02:59:25,450 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 02:59:25,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 02:59:25,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 02:59:25,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 02:59:25,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 02:59:25" (1/1) ... [2022-03-18 02:59:25,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d0785f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25, skipping insertion in model container [2022-03-18 02:59:25,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 02:59:25" (1/1) ... [2022-03-18 02:59:25,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 02:59:25,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 02:59:25,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound5.c[546,559] [2022-03-18 02:59:25,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 02:59:25,605 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 02:59:25,613 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound5.c[546,559] [2022-03-18 02:59:25,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 02:59:25,632 INFO L208 MainTranslator]: Completed translation [2022-03-18 02:59:25,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25 WrapperNode [2022-03-18 02:59:25,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 02:59:25,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 02:59:25,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 02:59:25,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 02:59:25,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25" (1/1) ... [2022-03-18 02:59:25,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25" (1/1) ... [2022-03-18 02:59:25,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25" (1/1) ... [2022-03-18 02:59:25,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25" (1/1) ... [2022-03-18 02:59:25,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25" (1/1) ... [2022-03-18 02:59:25,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25" (1/1) ... [2022-03-18 02:59:25,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25" (1/1) ... [2022-03-18 02:59:25,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 02:59:25,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 02:59:25,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 02:59:25,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 02:59:25,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25" (1/1) ... [2022-03-18 02:59:25,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 02:59:25,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 02:59:25,686 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) [2022-03-18 02:59:25,699 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 [2022-03-18 02:59:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 02:59:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 02:59:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 02:59:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-18 02:59:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-18 02:59:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 02:59:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 02:59:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 02:59:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 02:59:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 02:59:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 02:59:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-18 02:59:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-18 02:59:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 02:59:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 02:59:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 02:59:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 02:59:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 02:59:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 02:59:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 02:59:25,766 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 02:59:25,767 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 02:59:25,886 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 02:59:25,890 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 02:59:25,891 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 02:59:25,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 02:59:25 BoogieIcfgContainer [2022-03-18 02:59:25,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 02:59:25,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 02:59:25,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 02:59:25,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 02:59:25,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 02:59:25" (1/3) ... [2022-03-18 02:59:25,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf8baab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 02:59:25, skipping insertion in model container [2022-03-18 02:59:25,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:59:25" (2/3) ... [2022-03-18 02:59:25,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf8baab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 02:59:25, skipping insertion in model container [2022-03-18 02:59:25,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 02:59:25" (3/3) ... [2022-03-18 02:59:25,914 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound5.c [2022-03-18 02:59:25,917 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-18 02:59:25,917 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 02:59:25,952 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 02:59:25,978 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 [2022-03-18 02:59:25,978 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 02:59:25,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-03-18 02:59:25,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-18 02:59:25,993 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 02:59:25,993 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 02:59:25,994 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 02:59:25,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 02:59:25,997 INFO L85 PathProgramCache]: Analyzing trace with hash 774216096, now seen corresponding path program 1 times [2022-03-18 02:59:26,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 02:59:26,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1693200508] [2022-03-18 02:59:26,013 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 02:59:26,014 INFO L85 PathProgramCache]: Analyzing trace with hash 774216096, now seen corresponding path program 2 times [2022-03-18 02:59:26,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 02:59:26,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225488834] [2022-03-18 02:59:26,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 02:59:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 02:59:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 02:59:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 02:59:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 02:59:26,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 02:59:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 02:59:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 02:59:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 02:59:26,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-03-18 02:59:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 02:59:26,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-18 02:59:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 02:59:26,201 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-18 02:59:26,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 02:59:26,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225488834] [2022-03-18 02:59:26,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225488834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 02:59:26,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 02:59:26,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-18 02:59:26,205 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 02:59:26,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1693200508] [2022-03-18 02:59:26,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1693200508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 02:59:26,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 02:59:26,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-18 02:59:26,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520188472] [2022-03-18 02:59:26,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 02:59:26,211 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-18 02:59:26,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 02:59:26,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-18 02:59:26,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-18 02:59:26,234 INFO L87 Difference]: Start difference. First operand has 32 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-18 02:59:26,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 02:59:26,302 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2022-03-18 02:59:26,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-18 02:59:26,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2022-03-18 02:59:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 02:59:26,310 INFO L225 Difference]: With dead ends: 57 [2022-03-18 02:59:26,310 INFO L226 Difference]: Without dead ends: 27 [2022-03-18 02:59:26,312 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-18 02:59:26,318 INFO L912 BasicCegarLoop]: 30 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 02:59:26,319 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 33 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 02:59:26,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-03-18 02:59:26,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-03-18 02:59:26,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-03-18 02:59:26,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-03-18 02:59:26,353 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 33 [2022-03-18 02:59:26,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 02:59:26,354 INFO L478 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-03-18 02:59:26,354 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-18 02:59:26,354 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-03-18 02:59:26,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-18 02:59:26,355 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 02:59:26,355 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 02:59:26,355 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 02:59:26,355 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 02:59:26,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 02:59:26,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1105237916, now seen corresponding path program 1 times [2022-03-18 02:59:26,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 02:59:26,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1580326735] [2022-03-18 02:59:26,357 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 02:59:26,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1105237916, now seen corresponding path program 2 times [2022-03-18 02:59:26,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 02:59:26,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554158879] [2022-03-18 02:59:26,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 02:59:26,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 02:59:26,394 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-18 02:59:26,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966966216] [2022-03-18 02:59:26,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-18 02:59:26,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 02:59:26,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 02:59:26,408 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) [2022-03-18 02:59:26,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 02:59:26,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-03-18 02:59:26,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-18 02:59:26,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-18 02:59:26,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 02:59:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-18 02:59:26,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-18 02:59:26,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 02:59:26,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554158879] [2022-03-18 02:59:26,545 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-18 02:59:26,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966966216] [2022-03-18 02:59:26,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966966216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 02:59:26,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 02:59:26,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 02:59:26,546 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 02:59:26,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1580326735] [2022-03-18 02:59:26,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1580326735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 02:59:26,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 02:59:26,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 02:59:26,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767552181] [2022-03-18 02:59:26,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 02:59:26,548 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 02:59:26,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 02:59:26,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 02:59:26,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 02:59:26,548 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-18 02:59:26,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 02:59:26,573 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-03-18 02:59:26,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 02:59:26,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 33 [2022-03-18 02:59:26,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 02:59:26,575 INFO L225 Difference]: With dead ends: 37 [2022-03-18 02:59:26,575 INFO L226 Difference]: Without dead ends: 35 [2022-03-18 02:59:26,575 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 02:59:26,576 INFO L912 BasicCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 02:59:26,576 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 104 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 02:59:26,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-03-18 02:59:26,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2022-03-18 02:59:26,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-03-18 02:59:26,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-03-18 02:59:26,583 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 33 [2022-03-18 02:59:26,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 02:59:26,584 INFO L478 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-03-18 02:59:26,584 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-18 02:59:26,584 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-03-18 02:59:26,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-18 02:59:26,585 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 02:59:26,585 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 02:59:26,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-18 02:59:26,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 02:59:26,802 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 02:59:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 02:59:26,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1493430927, now seen corresponding path program 1 times [2022-03-18 02:59:26,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 02:59:26,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [461073241] [2022-03-18 02:59:26,803 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 02:59:26,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1493430927, now seen corresponding path program 2 times [2022-03-18 02:59:26,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 02:59:26,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117903553] [2022-03-18 02:59:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 02:59:26,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 02:59:26,823 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-18 02:59:26,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444840523] [2022-03-18 02:59:26,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-18 02:59:26,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 02:59:26,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 02:59:26,826 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) [2022-03-18 02:59:26,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-18 02:59:26,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-18 02:59:26,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-18 02:59:26,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-18 02:59:26,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 02:59:27,061 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-18 02:59:27,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 02:59:27,242 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-18 02:59:27,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 02:59:27,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117903553] [2022-03-18 02:59:27,243 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-18 02:59:27,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444840523] [2022-03-18 02:59:27,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444840523] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 02:59:27,244 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-03-18 02:59:27,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2022-03-18 02:59:27,244 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 02:59:27,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [461073241] [2022-03-18 02:59:27,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [461073241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 02:59:27,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 02:59:27,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 02:59:27,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851798336] [2022-03-18 02:59:27,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 02:59:27,245 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 02:59:27,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 02:59:27,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 02:59:27,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-18 02:59:27,246 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-18 02:59:27,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 02:59:27,430 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-03-18 02:59:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 02:59:27,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2022-03-18 02:59:27,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 02:59:27,431 INFO L225 Difference]: With dead ends: 33 [2022-03-18 02:59:27,431 INFO L226 Difference]: Without dead ends: 0 [2022-03-18 02:59:27,431 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-18 02:59:27,432 INFO L912 BasicCegarLoop]: 24 mSDtfsCounter, 8 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-18 02:59:27,432 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 152 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 8 Unchecked, 0.2s Time] [2022-03-18 02:59:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-18 02:59:27,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-18 02:59:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-18 02:59:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-18 02:59:27,433 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2022-03-18 02:59:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 02:59:27,434 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-18 02:59:27,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-18 02:59:27,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-18 02:59:27,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-18 02:59:27,436 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-18 02:59:27,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-18 02:59:27,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-03-18 02:59:27,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-18 02:59:27,730 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 9) no Hoare annotation was computed. [2022-03-18 02:59:27,731 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 9) no Hoare annotation was computed. [2022-03-18 02:59:27,731 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 9) no Hoare annotation was computed. [2022-03-18 02:59:27,731 INFO L885 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 12 14) the Hoare annotation is: true [2022-03-18 02:59:27,731 INFO L885 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: true [2022-03-18 02:59:27,731 INFO L885 garLoopResultBuilder]: At program point L13-2(lines 12 14) the Hoare annotation is: true [2022-03-18 02:59:27,731 INFO L885 garLoopResultBuilder]: At program point assume_abort_if_notEXIT(lines 12 14) the Hoare annotation is: true [2022-03-18 02:59:27,731 INFO L885 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: true [2022-03-18 02:59:27,731 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 22 52) the Hoare annotation is: true [2022-03-18 02:59:27,731 INFO L878 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (exists ((v_main_~x~0_11 Int) (main_~z~0 Int)) (and (= (+ (* v_main_~x~0_11 main_~z~0) 1) (+ v_main_~x~0_11 main_~y~0)) (= main_~x~0 (* v_main_~x~0_11 (+ (- 1) main_~z~0))))) [2022-03-18 02:59:27,732 INFO L885 garLoopResultBuilder]: At program point L50-1(line 50) the Hoare annotation is: true [2022-03-18 02:59:27,732 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 22 52) the Hoare annotation is: true [2022-03-18 02:59:27,732 INFO L878 garLoopResultBuilder]: At program point L36-2(lines 36 46) the Hoare annotation is: (= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0)) [2022-03-18 02:59:27,732 INFO L878 garLoopResultBuilder]: At program point L36-3(lines 36 46) the Hoare annotation is: (= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0)) [2022-03-18 02:59:27,732 INFO L885 garLoopResultBuilder]: At program point L30(line 30) the Hoare annotation is: true [2022-03-18 02:59:27,732 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 22 52) the Hoare annotation is: true [2022-03-18 02:59:27,732 INFO L885 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: true [2022-03-18 02:59:27,732 INFO L885 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: true [2022-03-18 02:59:27,732 INFO L885 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: true [2022-03-18 02:59:27,733 INFO L885 garLoopResultBuilder]: At program point L26-1(line 26) the Hoare annotation is: true [2022-03-18 02:59:27,733 INFO L878 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0)) [2022-03-18 02:59:27,733 INFO L878 garLoopResultBuilder]: At program point L37-1(lines 36 46) the Hoare annotation is: (= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0)) [2022-03-18 02:59:27,733 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-03-18 02:59:27,733 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-18 02:59:27,733 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-03-18 02:59:27,733 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-03-18 02:59:27,733 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-18 02:59:27,733 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-18 02:59:27,741 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-03-18 02:59:27,742 INFO L878 garLoopResultBuilder]: At program point L17(lines 17 18) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2022-03-18 02:59:27,742 INFO L878 garLoopResultBuilder]: At program point L16(lines 16 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (<= 1 |__VERIFIER_assert_#in~cond|))) [2022-03-18 02:59:27,742 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 15 21) the Hoare annotation is: true [2022-03-18 02:59:27,742 INFO L878 garLoopResultBuilder]: At program point L16-2(lines 15 21) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (<= 1 |__VERIFIER_assert_#in~cond|))) [2022-03-18 02:59:27,743 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 15 21) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (<= 1 |__VERIFIER_assert_#in~cond|))) [2022-03-18 02:59:27,743 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2022-03-18 02:59:27,745 INFO L718 BasicCegarLoop]: Path program histogram: [2, 2, 2] [2022-03-18 02:59:27,746 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-18 02:59:27,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 02:59:27 BoogieIcfgContainer [2022-03-18 02:59:27,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-18 02:59:27,759 INFO L158 Benchmark]: Toolchain (without parser) took 2308.47ms. Allocated memory is still 201.3MB. Free memory was 152.3MB in the beginning and 77.1MB in the end (delta: 75.2MB). Peak memory consumption was 75.2MB. Max. memory is 8.0GB. [2022-03-18 02:59:27,759 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory was 168.6MB in the beginning and 168.5MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 02:59:27,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.03ms. Allocated memory is still 201.3MB. Free memory was 152.1MB in the beginning and 178.1MB in the end (delta: -26.0MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-03-18 02:59:27,761 INFO L158 Benchmark]: Boogie Preprocessor took 29.94ms. Allocated memory is still 201.3MB. Free memory was 178.1MB in the beginning and 176.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-18 02:59:27,761 INFO L158 Benchmark]: RCFGBuilder took 226.96ms. Allocated memory is still 201.3MB. Free memory was 176.5MB in the beginning and 166.2MB in the end (delta: 10.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-18 02:59:27,763 INFO L158 Benchmark]: TraceAbstraction took 1849.09ms. Allocated memory is still 201.3MB. Free memory was 165.7MB in the beginning and 77.1MB in the end (delta: 88.6MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB. [2022-03-18 02:59:27,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory was 168.6MB in the beginning and 168.5MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 181.03ms. Allocated memory is still 201.3MB. Free memory was 152.1MB in the beginning and 178.1MB in the end (delta: -26.0MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.94ms. Allocated memory is still 201.3MB. Free memory was 178.1MB in the beginning and 176.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 226.96ms. Allocated memory is still 201.3MB. Free memory was 176.5MB in the beginning and 166.2MB in the end (delta: 10.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1849.09ms. Allocated memory is still 201.3MB. Free memory was 165.7MB in the beginning and 77.1MB in the end (delta: 88.6MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 289 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 8 IncrementalHoareTripleChecker+Unchecked, 208 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 81 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 80 PreInvPairs, 113 NumberOfFragments, 114 HoareAnnotationTreeSize, 80 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 32 FomulaSimplificationsInter, 94 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: z * x + 1 == y + x - ProcedureContractResult [Line: 12]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not: 1 - ProcedureContractResult [Line: 22]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 15]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == cond || !(1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2022-03-18 02:59:27,786 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...