/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/in-de61.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 14:51:30,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 14:51:30,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 14:51:30,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-06 14:51:30,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 14:51:30,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 14:51:30,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 14:51:30,390 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-06 14:51:30,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 14:51:30,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 14:51:30,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 14:51:30,399 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 14:51:30,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 14:51:30,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 14:51:30,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 14:51:30,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 14:51:30,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 14:51:30,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 14:51:30,400 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 14:51:30,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 14:51:30,400 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 14:51:30,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 14:51:30,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 14:51:30,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 14:51:30,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 14:51:30,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 14:51:30,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 14:51:30,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 14:51:30,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-06 14:51:30,401 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-06 14:51:30,401 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-06 14:51:30,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 14:51:30,402 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-06 14:51:30,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 14:51:30,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 14:51:30,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 14:51:30,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 14:51:30,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 14:51:30,651 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 14:51:30,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/in-de61.c [2022-04-06 14:51:30,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f208c1938/8ab73a16a4bf45809c3c7c6a51a5f883/FLAG705508fe4 [2022-04-06 14:51:31,130 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 14:51:31,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de61.c [2022-04-06 14:51:31,137 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f208c1938/8ab73a16a4bf45809c3c7c6a51a5f883/FLAG705508fe4 [2022-04-06 14:51:31,152 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f208c1938/8ab73a16a4bf45809c3c7c6a51a5f883 [2022-04-06 14:51:31,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 14:51:31,157 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-06 14:51:31,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 14:51:31,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 14:51:31,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 14:51:31,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:51:31" (1/1) ... [2022-04-06 14:51:31,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3e3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31, skipping insertion in model container [2022-04-06 14:51:31,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:51:31" (1/1) ... [2022-04-06 14:51:31,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 14:51:31,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 14:51:31,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de61.c[368,381] [2022-04-06 14:51:31,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 14:51:31,353 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 14:51:31,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de61.c[368,381] [2022-04-06 14:51:31,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 14:51:31,388 INFO L208 MainTranslator]: Completed translation [2022-04-06 14:51:31,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31 WrapperNode [2022-04-06 14:51:31,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 14:51:31,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 14:51:31,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 14:51:31,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 14:51:31,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31" (1/1) ... [2022-04-06 14:51:31,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31" (1/1) ... [2022-04-06 14:51:31,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31" (1/1) ... [2022-04-06 14:51:31,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31" (1/1) ... [2022-04-06 14:51:31,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31" (1/1) ... [2022-04-06 14:51:31,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31" (1/1) ... [2022-04-06 14:51:31,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31" (1/1) ... [2022-04-06 14:51:31,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 14:51:31,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 14:51:31,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 14:51:31,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 14:51:31,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31" (1/1) ... [2022-04-06 14:51:31,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 14:51:31,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:51:31,465 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) [2022-04-06 14:51:31,495 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 [2022-04-06 14:51:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 14:51:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 14:51:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 14:51:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-06 14:51:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 14:51:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 14:51:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 14:51:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 14:51:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 14:51:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-06 14:51:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-06 14:51:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 14:51:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 14:51:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 14:51:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 14:51:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 14:51:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 14:51:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 14:51:31,573 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 14:51:31,575 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 14:51:31,685 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 14:51:31,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 14:51:31,689 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-06 14:51:31,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:51:31 BoogieIcfgContainer [2022-04-06 14:51:31,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 14:51:31,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 14:51:31,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 14:51:31,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 14:51:31,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 02:51:31" (1/3) ... [2022-04-06 14:51:31,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4766a9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:51:31, skipping insertion in model container [2022-04-06 14:51:31,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:31" (2/3) ... [2022-04-06 14:51:31,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4766a9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:51:31, skipping insertion in model container [2022-04-06 14:51:31,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:51:31" (3/3) ... [2022-04-06 14:51:31,704 INFO L111 eAbstractionObserver]: Analyzing ICFG in-de61.c [2022-04-06 14:51:31,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-06 14:51:31,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 14:51:31,779 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 14:51:31,793 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 14:51:31,793 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 14:51:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 14:51:31,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-06 14:51:31,826 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:51:31,827 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:51:31,827 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:51:31,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:51:31,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1370249117, now seen corresponding path program 1 times [2022-04-06 14:51:31,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:51:31,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [956768867] [2022-04-06 14:51:31,855 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:51:31,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1370249117, now seen corresponding path program 2 times [2022-04-06 14:51:31,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:51:31,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867233989] [2022-04-06 14:51:31,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:51:31,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:51:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:51:32,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:51:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:51:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:51:32,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:51:32,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867233989] [2022-04-06 14:51:32,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867233989] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:51:32,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:51:32,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-06 14:51:32,053 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:51:32,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [956768867] [2022-04-06 14:51:32,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [956768867] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:51:32,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:51:32,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-06 14:51:32,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445985282] [2022-04-06 14:51:32,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:51:32,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 14:51:32,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:51:32,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 14:51:32,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 14:51:32,089 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:51:32,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:51:32,144 INFO L93 Difference]: Finished difference Result 43 states and 66 transitions. [2022-04-06 14:51:32,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 14:51:32,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-04-06 14:51:32,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:51:32,154 INFO L225 Difference]: With dead ends: 43 [2022-04-06 14:51:32,155 INFO L226 Difference]: Without dead ends: 18 [2022-04-06 14:51:32,157 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 14:51:32,161 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:51:32,162 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 14:51:32,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-04-06 14:51:32,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-04-06 14:51:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:51:32,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2022-04-06 14:51:32,202 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 17 [2022-04-06 14:51:32,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:51:32,203 INFO L478 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-04-06 14:51:32,204 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:51:32,204 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-04-06 14:51:32,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-06 14:51:32,205 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:51:32,205 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:51:32,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 14:51:32,206 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:51:32,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:51:32,206 INFO L85 PathProgramCache]: Analyzing trace with hash 2115201689, now seen corresponding path program 1 times [2022-04-06 14:51:32,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:51:32,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [790783222] [2022-04-06 14:51:32,209 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:51:32,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2115201689, now seen corresponding path program 2 times [2022-04-06 14:51:32,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:51:32,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713776544] [2022-04-06 14:51:32,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:51:32,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:51:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:51:32,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:51:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:51:32,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:51:32,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:51:32,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713776544] [2022-04-06 14:51:32,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713776544] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:51:32,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:51:32,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-06 14:51:32,526 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:51:32,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [790783222] [2022-04-06 14:51:32,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [790783222] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:51:32,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:51:32,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-06 14:51:32,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009719878] [2022-04-06 14:51:32,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:51:32,528 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-06 14:51:32,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:51:32,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-06 14:51:32,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-04-06 14:51:32,529 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:51:32,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:51:32,715 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2022-04-06 14:51:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 14:51:32,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-04-06 14:51:32,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:51:32,717 INFO L225 Difference]: With dead ends: 38 [2022-04-06 14:51:32,717 INFO L226 Difference]: Without dead ends: 19 [2022-04-06 14:51:32,717 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-04-06 14:51:32,719 INFO L913 BasicCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:51:32,719 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 36 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 14:51:32,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-04-06 14:51:32,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-04-06 14:51:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:51:32,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-04-06 14:51:32,725 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 17 [2022-04-06 14:51:32,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:51:32,725 INFO L478 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-04-06 14:51:32,725 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:51:32,726 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-04-06 14:51:32,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-06 14:51:32,726 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:51:32,726 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:51:32,727 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 14:51:32,727 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:51:32,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:51:32,728 INFO L85 PathProgramCache]: Analyzing trace with hash -121895178, now seen corresponding path program 1 times [2022-04-06 14:51:32,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:51:32,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [489013522] [2022-04-06 14:51:32,863 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-06 14:51:32,864 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-06 14:51:32,865 INFO L85 PathProgramCache]: Analyzing trace with hash -994530153, now seen corresponding path program 1 times [2022-04-06 14:51:32,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:51:32,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364860478] [2022-04-06 14:51:32,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:51:32,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:51:32,876 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 14:51:32,876 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.runStrategy(AcceleratedInterpolationCore.java:300) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:289) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAcceleratedInterpolation.construct(IpTcStrategyModuleAcceleratedInterpolation.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:412) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:471) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertCodeBlocks.java:109) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:313) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 40 more [2022-04-06 14:51:32,881 INFO L158 Benchmark]: Toolchain (without parser) took 1724.00ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 134.1MB in the beginning and 186.7MB in the end (delta: -52.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 14:51:32,881 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 150.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 14:51:32,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.92ms. Allocated memory is still 182.5MB. Free memory was 133.9MB in the beginning and 162.0MB in the end (delta: -28.1MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-04-06 14:51:32,882 INFO L158 Benchmark]: Boogie Preprocessor took 41.38ms. Allocated memory is still 182.5MB. Free memory was 162.0MB in the beginning and 160.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-06 14:51:32,882 INFO L158 Benchmark]: RCFGBuilder took 257.40ms. Allocated memory is still 182.5MB. Free memory was 160.3MB in the beginning and 149.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-06 14:51:32,883 INFO L158 Benchmark]: TraceAbstraction took 1187.91ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 149.1MB in the beginning and 186.7MB in the end (delta: -37.6MB). Peak memory consumption was 675.1kB. Max. memory is 8.0GB. [2022-04-06 14:51:32,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 150.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.92ms. Allocated memory is still 182.5MB. Free memory was 133.9MB in the beginning and 162.0MB in the end (delta: -28.1MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.38ms. Allocated memory is still 182.5MB. Free memory was 162.0MB in the beginning and 160.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 257.40ms. Allocated memory is still 182.5MB. Free memory was 160.3MB in the beginning and 149.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1187.91ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 149.1MB in the beginning and 186.7MB in the end (delta: -37.6MB). Peak memory consumption was 675.1kB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-04-06 14:51:32,923 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...