/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/openssl-simplified/s3_srvr_6.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 06:49:55,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 06:49:55,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 06:49:55,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-19 06:49:55,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 06:49:55,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 06:49:55,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 06:49:55,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-19 06:49:55,786 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 06:49:55,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 06:49:55,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 06:49:55,788 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-19 06:49:55,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 06:49:55,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-19 06:49:55,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 06:49:55,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 06:49:55,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 06:49:55,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 06:49:55,789 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-19 06:49:55,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 06:49:55,789 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 06:49:55,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 06:49:55,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 06:49:55,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 06:49:55,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 06:49:55,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 06:49:55,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 06:49:55,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 06:49:55,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 06:49:55,790 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 06:49:55,790 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 06:49:55,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 06:49:55,790 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-19 06:49:55,791 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 06:49:56,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 06:49:56,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 06:49:56,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 06:49:56,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 06:49:56,035 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 06:49:56,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-2.c [2022-03-19 06:49:56,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d5357e2f/533374f4b1e441c99fec4231abb14a61/FLAG6233a780a [2022-03-19 06:49:56,487 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 06:49:56,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-2.c [2022-03-19 06:49:56,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d5357e2f/533374f4b1e441c99fec4231abb14a61/FLAG6233a780a [2022-03-19 06:49:56,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d5357e2f/533374f4b1e441c99fec4231abb14a61 [2022-03-19 06:49:56,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 06:49:56,521 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 06:49:56,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 06:49:56,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 06:49:56,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 06:49:56,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 06:49:56" (1/1) ... [2022-03-19 06:49:56,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b30a0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56, skipping insertion in model container [2022-03-19 06:49:56,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 06:49:56" (1/1) ... [2022-03-19 06:49:56,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 06:49:56,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 06:49:56,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-2.c[48455,48468] [2022-03-19 06:49:56,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 06:49:56,842 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 06:49:56,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-2.c[48455,48468] [2022-03-19 06:49:56,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 06:49:56,926 INFO L208 MainTranslator]: Completed translation [2022-03-19 06:49:56,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56 WrapperNode [2022-03-19 06:49:56,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 06:49:56,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 06:49:56,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 06:49:56,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 06:49:56,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56" (1/1) ... [2022-03-19 06:49:56,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56" (1/1) ... [2022-03-19 06:49:56,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56" (1/1) ... [2022-03-19 06:49:56,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56" (1/1) ... [2022-03-19 06:49:56,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56" (1/1) ... [2022-03-19 06:49:56,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56" (1/1) ... [2022-03-19 06:49:56,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56" (1/1) ... [2022-03-19 06:49:56,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 06:49:56,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 06:49:56,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 06:49:56,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 06:49:56,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56" (1/1) ... [2022-03-19 06:49:57,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 06:49:57,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 06:49:57,067 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) [2022-03-19 06:49:57,129 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 [2022-03-19 06:49:57,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 06:49:57,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 06:49:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 06:49:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-19 06:49:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 06:49:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 06:49:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 06:49:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 06:49:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 06:49:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 06:49:57,228 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 06:49:57,230 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 06:49:57,329 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 06:49:57,754 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-03-19 06:49:57,754 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-03-19 06:49:57,759 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 06:49:57,764 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 06:49:57,765 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 06:49:57,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 06:49:57 BoogieIcfgContainer [2022-03-19 06:49:57,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 06:49:57,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 06:49:57,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 06:49:57,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 06:49:57,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 06:49:56" (1/3) ... [2022-03-19 06:49:57,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f876759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 06:49:57, skipping insertion in model container [2022-03-19 06:49:57,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:49:56" (2/3) ... [2022-03-19 06:49:57,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f876759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 06:49:57, skipping insertion in model container [2022-03-19 06:49:57,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 06:49:57" (3/3) ... [2022-03-19 06:49:57,777 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-2.c [2022-03-19 06:49:57,780 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 06:49:57,780 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 06:49:57,819 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 06:49:57,823 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 [2022-03-19 06:49:57,823 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 06:49:57,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7421383647798743) internal successors, (277), 160 states have internal predecessors, (277), 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) [2022-03-19 06:49:57,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-19 06:49:57,849 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 06:49:57,849 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 06:49:57,850 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 06:49:57,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 06:49:57,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1438315917, now seen corresponding path program 1 times [2022-03-19 06:49:57,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 06:49:57,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1793106185] [2022-03-19 06:49:57,865 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 06:49:57,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1438315917, now seen corresponding path program 2 times [2022-03-19 06:49:57,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 06:49:57,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933675111] [2022-03-19 06:49:57,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 06:49:57,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 06:49:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 06:49:58,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 06:49:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 06:49:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 06:49:58,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 06:49:58,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933675111] [2022-03-19 06:49:58,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933675111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 06:49:58,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 06:49:58,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 06:49:58,120 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 06:49:58,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1793106185] [2022-03-19 06:49:58,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1793106185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 06:49:58,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 06:49:58,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 06:49:58,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864457713] [2022-03-19 06:49:58,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 06:49:58,125 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 06:49:58,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 06:49:58,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 06:49:58,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 06:49:58,150 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7421383647798743) internal successors, (277), 160 states have internal predecessors, (277), 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 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2022-03-19 06:49:58,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 06:49:58,698 INFO L93 Difference]: Finished difference Result 373 states and 645 transitions. [2022-03-19 06:49:58,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 06:49:58,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 50 [2022-03-19 06:49:58,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 06:49:58,711 INFO L225 Difference]: With dead ends: 373 [2022-03-19 06:49:58,711 INFO L226 Difference]: Without dead ends: 199 [2022-03-19 06:49:58,714 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-19 06:49:58,716 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 931 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-19 06:49:58,717 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 225 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-19 06:49:58,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-03-19 06:49:58,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 189. [2022-03-19 06:49:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.6467391304347827) internal successors, (303), 184 states have internal predecessors, (303), 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) [2022-03-19 06:49:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 307 transitions. [2022-03-19 06:49:58,763 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 307 transitions. Word has length 50 [2022-03-19 06:49:58,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 06:49:58,764 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 307 transitions. [2022-03-19 06:49:58,764 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2022-03-19 06:49:58,764 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 307 transitions. [2022-03-19 06:49:58,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-19 06:49:58,765 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 06:49:58,766 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-03-19 06:49:58,766 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 06:49:58,766 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 06:49:58,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 06:49:58,767 INFO L85 PathProgramCache]: Analyzing trace with hash 931339332, now seen corresponding path program 1 times [2022-03-19 06:49:58,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 06:49:58,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [307393265] [2022-03-19 06:49:58,768 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 06:49:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash 931339332, now seen corresponding path program 2 times [2022-03-19 06:49:58,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 06:49:58,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093533190] [2022-03-19 06:49:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 06:49:58,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 06:49:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 06:49:58,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 06:49:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 06:49:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 06:49:58,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 06:49:58,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093533190] [2022-03-19 06:49:58,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093533190] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 06:49:58,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 06:49:58,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 06:49:58,839 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 06:49:58,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [307393265] [2022-03-19 06:49:58,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [307393265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 06:49:58,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 06:49:58,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 06:49:58,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691593644] [2022-03-19 06:49:58,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 06:49:58,841 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 06:49:58,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 06:49:58,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 06:49:58,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 06:49:58,842 INFO L87 Difference]: Start difference. First operand 189 states and 307 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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) [2022-03-19 06:49:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 06:49:59,209 INFO L93 Difference]: Finished difference Result 413 states and 685 transitions. [2022-03-19 06:49:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 06:49:59,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 51 [2022-03-19 06:49:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 06:49:59,211 INFO L225 Difference]: With dead ends: 413 [2022-03-19 06:49:59,211 INFO L226 Difference]: Without dead ends: 238 [2022-03-19 06:49:59,212 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-19 06:49:59,213 INFO L912 BasicCegarLoop]: 165 mSDtfsCounter, 796 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-19 06:49:59,214 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [796 Valid, 182 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-19 06:49:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-03-19 06:49:59,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 228. [2022-03-19 06:49:59,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.6860986547085202) internal successors, (376), 223 states have internal predecessors, (376), 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) [2022-03-19 06:49:59,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 380 transitions. [2022-03-19 06:49:59,236 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 380 transitions. Word has length 51 [2022-03-19 06:49:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 06:49:59,236 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 380 transitions. [2022-03-19 06:49:59,236 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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) [2022-03-19 06:49:59,237 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 380 transitions. [2022-03-19 06:49:59,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-19 06:49:59,239 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 06:49:59,239 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 06:49:59,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 06:49:59,239 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 06:49:59,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 06:49:59,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1405895752, now seen corresponding path program 1 times [2022-03-19 06:49:59,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 06:49:59,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1644705920] [2022-03-19 06:49:59,351 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-19 06:49:59,352 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-19 06:49:59,359 INFO L85 PathProgramCache]: Analyzing trace with hash 845730983, now seen corresponding path program 1 times [2022-03-19 06:49:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 06:49:59,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482987963] [2022-03-19 06:49:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 06:49:59,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 06:49:59,384 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 06:49:59,385 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:596) 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:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) 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 [2022-03-19 06:49:59,388 INFO L158 Benchmark]: Toolchain (without parser) took 2866.88ms. Allocated memory was 213.9MB in the beginning and 256.9MB in the end (delta: 43.0MB). Free memory was 159.9MB in the beginning and 118.0MB in the end (delta: 41.9MB). Peak memory consumption was 85.8MB. Max. memory is 8.0GB. [2022-03-19 06:49:59,389 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 213.9MB. Free memory was 177.2MB in the beginning and 177.1MB in the end (delta: 66.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 06:49:59,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.46ms. Allocated memory is still 213.9MB. Free memory was 159.7MB in the beginning and 182.2MB in the end (delta: -22.5MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2022-03-19 06:49:59,389 INFO L158 Benchmark]: Boogie Preprocessor took 58.13ms. Allocated memory is still 213.9MB. Free memory was 182.2MB in the beginning and 179.4MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-19 06:49:59,389 INFO L158 Benchmark]: RCFGBuilder took 778.66ms. Allocated memory is still 213.9MB. Free memory was 179.4MB in the beginning and 149.7MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-03-19 06:49:59,390 INFO L158 Benchmark]: TraceAbstraction took 1620.63ms. Allocated memory was 213.9MB in the beginning and 256.9MB in the end (delta: 43.0MB). Free memory was 149.0MB in the beginning and 118.0MB in the end (delta: 31.1MB). Peak memory consumption was 75.2MB. Max. memory is 8.0GB. [2022-03-19 06:49:59,391 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 213.9MB. Free memory was 177.2MB in the beginning and 177.1MB in the end (delta: 66.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 405.46ms. Allocated memory is still 213.9MB. Free memory was 159.7MB in the beginning and 182.2MB in the end (delta: -22.5MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.13ms. Allocated memory is still 213.9MB. Free memory was 182.2MB in the beginning and 179.4MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 778.66ms. Allocated memory is still 213.9MB. Free memory was 179.4MB in the beginning and 149.7MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1620.63ms. Allocated memory was 213.9MB in the beginning and 256.9MB in the end (delta: 43.0MB). Free memory was 149.0MB in the beginning and 118.0MB in the end (delta: 31.1MB). Peak memory consumption was 75.2MB. 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. [2022-03-19 06:49:59,421 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...