java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/stateful_check.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:08:27,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:08:27,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:08:27,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:08:27,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:08:27,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:08:27,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:08:27,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:08:27,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:08:27,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:08:27,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:08:27,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:08:27,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:08:27,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:08:27,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:08:27,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:08:27,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:08:27,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:08:27,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:08:27,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:08:27,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:08:27,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:08:27,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:08:27,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:08:27,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:08:27,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:08:27,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:08:27,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:08:27,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:08:27,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:08:27,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:08:27,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:08:27,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:08:27,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:08:27,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:08:27,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:08:27,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:08:27,795 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:08:27,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:08:27,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:08:27,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:08:27,799 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:08:27,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:08:27,800 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:08:27,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:08:27,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:08:27,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:08:27,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:08:27,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:08:27,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:08:27,801 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:08:27,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:08:27,804 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:08:27,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:08:27,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:08:27,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:08:27,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:08:27,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:08:27,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:08:27,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:08:27,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:08:27,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:08:27,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:08:27,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:08:27,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:08:27,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:08:28,093 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:08:28,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:08:28,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:08:28,114 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:08:28,115 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:08:28,115 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2019-10-14 23:08:28,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e340db2/4b65e9a8b3ee495aa3a6f899de310a78/FLAG8bc6181a6 [2019-10-14 23:08:28,674 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:08:28,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c [2019-10-14 23:08:28,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e340db2/4b65e9a8b3ee495aa3a6f899de310a78/FLAG8bc6181a6 [2019-10-14 23:08:29,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e340db2/4b65e9a8b3ee495aa3a6f899de310a78 [2019-10-14 23:08:29,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:08:29,048 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:08:29,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:29,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:08:29,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:08:29,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:29" (1/1) ... [2019-10-14 23:08:29,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c0bcf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29, skipping insertion in model container [2019-10-14 23:08:29,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:29" (1/1) ... [2019-10-14 23:08:29,064 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:08:29,088 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:08:29,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:29,280 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:08:29,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:29,314 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:08:29,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29 WrapperNode [2019-10-14 23:08:29,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:29,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:08:29,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:08:29,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:08:29,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29" (1/1) ... [2019-10-14 23:08:29,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29" (1/1) ... [2019-10-14 23:08:29,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29" (1/1) ... [2019-10-14 23:08:29,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29" (1/1) ... [2019-10-14 23:08:29,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29" (1/1) ... [2019-10-14 23:08:29,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29" (1/1) ... [2019-10-14 23:08:29,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29" (1/1) ... [2019-10-14 23:08:29,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:08:29,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:08:29,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:08:29,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:08:29,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:08:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:08:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:08:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-10-14 23:08:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-14 23:08:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-14 23:08:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2019-10-14 23:08:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2019-10-14 23:08:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2019-10-14 23:08:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2019-10-14 23:08:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2019-10-14 23:08:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2019-10-14 23:08:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:08:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:08:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-10-14 23:08:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:08:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-14 23:08:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-14 23:08:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2019-10-14 23:08:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2019-10-14 23:08:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2019-10-14 23:08:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2019-10-14 23:08:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2019-10-14 23:08:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2019-10-14 23:08:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:08:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:08:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:08:29,834 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:08:29,834 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:08:29,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:29 BoogieIcfgContainer [2019-10-14 23:08:29,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:08:29,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:08:29,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:08:29,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:08:29,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:08:29" (1/3) ... [2019-10-14 23:08:29,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1dac8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:29, skipping insertion in model container [2019-10-14 23:08:29,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:29" (2/3) ... [2019-10-14 23:08:29,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1dac8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:29, skipping insertion in model container [2019-10-14 23:08:29,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:29" (3/3) ... [2019-10-14 23:08:29,844 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2019-10-14 23:08:29,853 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:08:29,861 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:08:29,872 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:08:29,896 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:08:29,897 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:08:29,897 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:08:29,897 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:08:29,897 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:08:29,897 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:08:29,897 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:08:29,897 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:08:29,915 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-10-14 23:08:29,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:08:29,920 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:29,921 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:29,922 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:29,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:29,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1865767033, now seen corresponding path program 1 times [2019-10-14 23:08:29,934 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:29,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115844756] [2019-10-14 23:08:29,935 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:29,935 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:29,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:30,115 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115844756] [2019-10-14 23:08:30,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:30,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:08:30,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355081861] [2019-10-14 23:08:30,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:08:30,120 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:30,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:08:30,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:08:30,136 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2019-10-14 23:08:30,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:30,327 INFO L93 Difference]: Finished difference Result 140 states and 185 transitions. [2019-10-14 23:08:30,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:08:30,329 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-10-14 23:08:30,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:30,345 INFO L225 Difference]: With dead ends: 140 [2019-10-14 23:08:30,345 INFO L226 Difference]: Without dead ends: 70 [2019-10-14 23:08:30,350 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:08:30,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-10-14 23:08:30,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2019-10-14 23:08:30,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-10-14 23:08:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2019-10-14 23:08:30,410 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 16 [2019-10-14 23:08:30,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:30,410 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2019-10-14 23:08:30,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:08:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2019-10-14 23:08:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-14 23:08:30,412 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:30,412 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:30,413 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:30,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:30,413 INFO L82 PathProgramCache]: Analyzing trace with hash 6927045, now seen corresponding path program 1 times [2019-10-14 23:08:30,414 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:30,414 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099418978] [2019-10-14 23:08:30,414 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:30,415 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:30,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:30,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099418978] [2019-10-14 23:08:30,512 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:30,513 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:08:30,513 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427515743] [2019-10-14 23:08:30,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:08:30,515 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:30,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:08:30,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:08:30,516 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand 5 states. [2019-10-14 23:08:30,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:30,784 INFO L93 Difference]: Finished difference Result 112 states and 143 transitions. [2019-10-14 23:08:30,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:08:30,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-10-14 23:08:30,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:30,789 INFO L225 Difference]: With dead ends: 112 [2019-10-14 23:08:30,790 INFO L226 Difference]: Without dead ends: 106 [2019-10-14 23:08:30,792 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:08:30,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-14 23:08:30,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2019-10-14 23:08:30,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-10-14 23:08:30,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2019-10-14 23:08:30,841 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 17 [2019-10-14 23:08:30,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:30,841 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2019-10-14 23:08:30,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:08:30,842 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2019-10-14 23:08:30,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-14 23:08:30,843 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:30,844 INFO L380 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] [2019-10-14 23:08:30,844 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:30,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:30,845 INFO L82 PathProgramCache]: Analyzing trace with hash -695621135, now seen corresponding path program 1 times [2019-10-14 23:08:30,845 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:30,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113425359] [2019-10-14 23:08:30,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:30,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:30,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:30,977 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113425359] [2019-10-14 23:08:30,977 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:30,977 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:08:30,978 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212881339] [2019-10-14 23:08:30,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:08:30,978 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:30,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:08:30,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:08:30,979 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand 6 states. [2019-10-14 23:08:31,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:31,192 INFO L93 Difference]: Finished difference Result 253 states and 356 transitions. [2019-10-14 23:08:31,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:08:31,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2019-10-14 23:08:31,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:31,196 INFO L225 Difference]: With dead ends: 253 [2019-10-14 23:08:31,196 INFO L226 Difference]: Without dead ends: 162 [2019-10-14 23:08:31,197 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:08:31,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-10-14 23:08:31,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 126. [2019-10-14 23:08:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-14 23:08:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 169 transitions. [2019-10-14 23:08:31,215 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 169 transitions. Word has length 29 [2019-10-14 23:08:31,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:31,215 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 169 transitions. [2019-10-14 23:08:31,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:08:31,215 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 169 transitions. [2019-10-14 23:08:31,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-14 23:08:31,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:31,217 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2019-10-14 23:08:31,217 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:31,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:31,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1328709660, now seen corresponding path program 1 times [2019-10-14 23:08:31,218 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:31,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414557261] [2019-10-14 23:08:31,219 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:31,219 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:31,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:31,336 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414557261] [2019-10-14 23:08:31,336 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058645060] [2019-10-14 23:08:31,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:08:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:31,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:08:31,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:08:31,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:31,428 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:08:31,429 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 8 [2019-10-14 23:08:31,429 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985779227] [2019-10-14 23:08:31,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:08:31,430 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:31,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:08:31,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:08:31,431 INFO L87 Difference]: Start difference. First operand 126 states and 169 transitions. Second operand 8 states. [2019-10-14 23:08:31,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:31,742 INFO L93 Difference]: Finished difference Result 351 states and 514 transitions. [2019-10-14 23:08:31,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:08:31,743 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-10-14 23:08:31,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:31,746 INFO L225 Difference]: With dead ends: 351 [2019-10-14 23:08:31,747 INFO L226 Difference]: Without dead ends: 236 [2019-10-14 23:08:31,748 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:08:31,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-10-14 23:08:31,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 174. [2019-10-14 23:08:31,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2019-10-14 23:08:31,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 243 transitions. [2019-10-14 23:08:31,777 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 243 transitions. Word has length 40 [2019-10-14 23:08:31,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:31,780 INFO L462 AbstractCegarLoop]: Abstraction has 174 states and 243 transitions. [2019-10-14 23:08:31,780 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:08:31,780 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 243 transitions. [2019-10-14 23:08:31,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-14 23:08:31,782 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:31,783 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:31,987 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:08:31,987 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:31,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:31,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1520942249, now seen corresponding path program 1 times [2019-10-14 23:08:31,988 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:31,988 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836343205] [2019-10-14 23:08:31,989 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:31,989 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:31,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,111 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:08:32,111 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836343205] [2019-10-14 23:08:32,112 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:32,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:08:32,113 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169993462] [2019-10-14 23:08:32,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:08:32,114 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:32,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:08:32,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:08:32,116 INFO L87 Difference]: Start difference. First operand 174 states and 243 transitions. Second operand 7 states. [2019-10-14 23:08:32,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:32,429 INFO L93 Difference]: Finished difference Result 542 states and 810 transitions. [2019-10-14 23:08:32,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:08:32,429 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-14 23:08:32,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:32,433 INFO L225 Difference]: With dead ends: 542 [2019-10-14 23:08:32,433 INFO L226 Difference]: Without dead ends: 379 [2019-10-14 23:08:32,434 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:08:32,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-10-14 23:08:32,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 222. [2019-10-14 23:08:32,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-10-14 23:08:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 323 transitions. [2019-10-14 23:08:32,454 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 323 transitions. Word has length 51 [2019-10-14 23:08:32,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:32,455 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 323 transitions. [2019-10-14 23:08:32,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:08:32,455 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 323 transitions. [2019-10-14 23:08:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-14 23:08:32,457 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:32,458 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:32,458 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:32,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:32,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1574199465, now seen corresponding path program 1 times [2019-10-14 23:08:32,461 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:32,461 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833729261] [2019-10-14 23:08:32,461 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:32,461 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:32,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-14 23:08:32,541 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833729261] [2019-10-14 23:08:32,541 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:32,542 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:08:32,542 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372646531] [2019-10-14 23:08:32,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:08:32,543 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:32,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:08:32,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:08:32,543 INFO L87 Difference]: Start difference. First operand 222 states and 323 transitions. Second operand 6 states. [2019-10-14 23:08:32,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:32,677 INFO L93 Difference]: Finished difference Result 414 states and 611 transitions. [2019-10-14 23:08:32,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:08:32,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2019-10-14 23:08:32,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:32,680 INFO L225 Difference]: With dead ends: 414 [2019-10-14 23:08:32,680 INFO L226 Difference]: Without dead ends: 203 [2019-10-14 23:08:32,681 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:08:32,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-10-14 23:08:32,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 122. [2019-10-14 23:08:32,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-14 23:08:32,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 166 transitions. [2019-10-14 23:08:32,691 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 166 transitions. Word has length 63 [2019-10-14 23:08:32,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:32,691 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 166 transitions. [2019-10-14 23:08:32,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:08:32,692 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 166 transitions. [2019-10-14 23:08:32,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-14 23:08:32,698 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:32,699 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:32,699 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:32,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:32,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1192820603, now seen corresponding path program 1 times [2019-10-14 23:08:32,700 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:32,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484474045] [2019-10-14 23:08:32,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:32,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:32,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-14 23:08:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-14 23:08:32,802 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-14 23:08:32,803 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-14 23:08:32,833 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,834 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,834 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,835 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,835 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,836 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,836 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,837 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,837 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,838 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,838 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,839 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,839 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,840 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-14 23:08:32,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:08:32 BoogieIcfgContainer [2019-10-14 23:08:32,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:08:32,858 INFO L168 Benchmark]: Toolchain (without parser) took 3808.39 ms. Allocated memory was 138.9 MB in the beginning and 250.1 MB in the end (delta: 111.1 MB). Free memory was 99.0 MB in the beginning and 138.6 MB in the end (delta: -39.6 MB). Peak memory consumption was 71.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:32,860 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 23:08:32,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.74 ms. Allocated memory is still 138.9 MB. Free memory was 98.8 MB in the beginning and 88.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:32,864 INFO L168 Benchmark]: Boogie Preprocessor took 119.38 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 88.6 MB in the beginning and 177.0 MB in the end (delta: -88.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:32,866 INFO L168 Benchmark]: RCFGBuilder took 401.17 ms. Allocated memory is still 199.8 MB. Free memory was 177.0 MB in the beginning and 158.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:32,867 INFO L168 Benchmark]: TraceAbstraction took 3017.56 ms. Allocated memory was 199.8 MB in the beginning and 250.1 MB in the end (delta: 50.3 MB). Free memory was 157.8 MB in the beginning and 138.6 MB in the end (delta: 19.2 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:32,875 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 265.74 ms. Allocated memory is still 138.9 MB. Free memory was 98.8 MB in the beginning and 88.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.38 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 88.6 MB in the beginning and 177.0 MB in the end (delta: -88.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 401.17 ms. Allocated memory is still 199.8 MB. Free memory was 177.0 MB in the beginning and 158.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3017.56 ms. Allocated memory was 199.8 MB in the beginning and 250.1 MB in the end (delta: 50.3 MB). Free memory was 157.8 MB in the beginning and 138.6 MB in the end (delta: 19.2 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int ldv_mutex = 1; [L11] int open_called = 0; VAL [\old(ldv_mutex)=4, \old(open_called)=3, ldv_mutex=1, open_called=0] [L74] int ldv_s_misc_fops_file_operations = 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L75] CALL my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L69] open_called = 0 [L70] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L75] RET my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, my_init()=0, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L81] COND TRUE ldv_s_misc_fops_file_operations==0 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L82] CALL misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L57] COND TRUE __VERIFIER_nondet_int() [L59] return 1; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=1, ldv_mutex=1, open_called=0] [L82] RET misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, misc_open()=1, open_called=0] [L83] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L89] COND TRUE ldv_s_misc_fops_file_operations==1 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L90] CALL misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L52] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L90] RET misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, misc_read()=0, open_called=0] [L91] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L97] COND TRUE ldv_s_misc_fops_file_operations==2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L98] CALL misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L48] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L98] RET misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, misc_llseek()=0, open_called=0] [L99] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: [L104] case 3: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L105] COND TRUE ldv_s_misc_fops_file_operations==3 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L106] CALL misc_release() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L34] COND FALSE !(\read(open_called)) VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L41] CALL mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L16] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L17] ldv_mutex = 2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L41] RET mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L42] CALL mutex_lock() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] CALL __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L4] __VERIFIER_error() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 74 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 408 SDtfs, 608 SDslu, 715 SDs, 0 SdLazy, 663 SolverSat, 231 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 345 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 17807 SizeOfPredicates, 1 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 36/42 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...