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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:44:17,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:44:17,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:44:17,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:44:17,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:44:17,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:44:17,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:44:17,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:44:17,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:44:17,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:44:17,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:44:17,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:44:17,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:44:17,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:44:17,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:44:17,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:44:17,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:44:17,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:44:17,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:44:17,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:44:17,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:44:17,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:44:17,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:44:17,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:44:17,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:44:17,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:44:17,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:44:17,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:44:17,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:44:17,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:44:17,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:44:17,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:44:17,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:44:17,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:44:17,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:44:17,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:44:17,614 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 23:44:17,641 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:44:17,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:44:17,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:44:17,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:44:17,651 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:44:17,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:44:17,651 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:44:17,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:44:17,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:44:17,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:44:17,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:44:17,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:44:17,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:44:17,653 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:44:17,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:44:17,653 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:44:17,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:44:17,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:44:17,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:44:17,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:44:17,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:44:17,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:44:17,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:44:17,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:44:17,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:44:17,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:44:17,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:44:17,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:44:17,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:44:17,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:44:17,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:44:17,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:44:17,963 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:44:17,964 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:44:17,965 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2019-10-14 23:44:18,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4dbe01b0/768067d9dfb24be0b1d8ae67ce65b4ad/FLAGa04693cf8 [2019-10-14 23:44:18,798 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:44:18,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2019-10-14 23:44:18,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4dbe01b0/768067d9dfb24be0b1d8ae67ce65b4ad/FLAGa04693cf8 [2019-10-14 23:44:18,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4dbe01b0/768067d9dfb24be0b1d8ae67ce65b4ad [2019-10-14 23:44:18,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:44:18,904 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:44:18,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:44:18,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:44:18,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:44:18,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:18" (1/1) ... [2019-10-14 23:44:18,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0cb938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:18, skipping insertion in model container [2019-10-14 23:44:18,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:18" (1/1) ... [2019-10-14 23:44:18,920 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:44:19,073 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:44:20,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:44:20,155 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:44:20,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:44:20,463 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:44:20,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:20 WrapperNode [2019-10-14 23:44:20,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:44:20,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:44:20,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:44:20,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:44:20,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:20" (1/1) ... [2019-10-14 23:44:20,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:20" (1/1) ... [2019-10-14 23:44:20,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:20" (1/1) ... [2019-10-14 23:44:20,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:20" (1/1) ... [2019-10-14 23:44:20,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:20" (1/1) ... [2019-10-14 23:44:20,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:20" (1/1) ... [2019-10-14 23:44:20,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:20" (1/1) ... [2019-10-14 23:44:20,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:44:20,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:44:20,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:44:20,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:44:20,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:20" (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 23:44:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:44:20,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:44:20,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:44:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:44:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-14 23:44:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-14 23:44:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-14 23:44:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:44:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-14 23:44:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-14 23:44:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-10-14 23:44:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-10-14 23:44:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-10-14 23:44:20,799 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-14 23:44:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-14 23:44:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:44:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:44:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:44:24,188 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:44:24,192 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:44:24,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:24 BoogieIcfgContainer [2019-10-14 23:44:24,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:44:24,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:44:24,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:44:24,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:44:24,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:44:18" (1/3) ... [2019-10-14 23:44:24,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ea62d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:24, skipping insertion in model container [2019-10-14 23:44:24,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:20" (2/3) ... [2019-10-14 23:44:24,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ea62d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:24, skipping insertion in model container [2019-10-14 23:44:24,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:24" (3/3) ... [2019-10-14 23:44:24,214 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2019-10-14 23:44:24,224 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:44:24,234 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-10-14 23:44:24,246 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-10-14 23:44:24,282 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:44:24,282 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:44:24,282 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:44:24,283 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:44:24,283 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:44:24,283 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:44:24,283 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:44:24,283 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:44:24,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states. [2019-10-14 23:44:24,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-14 23:44:24,368 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:44:24,369 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, 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 23:44:24,371 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:44:24,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:44:24,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1212138476, now seen corresponding path program 1 times [2019-10-14 23:44:24,385 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:44:24,385 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549180671] [2019-10-14 23:44:24,386 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:44:24,386 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:44:24,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:44:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:44:26,497 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 505 [2019-10-14 23:44:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:44:26,570 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 23:44:26,571 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549180671] [2019-10-14 23:44:26,572 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:44:26,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:44:26,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19974294] [2019-10-14 23:44:26,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:44:26,577 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:44:26,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:44:26,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:44:26,594 INFO L87 Difference]: Start difference. First operand 1195 states. Second operand 7 states. [2019-10-14 23:44:28,148 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 511 [2019-10-14 23:44:39,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:44:39,590 INFO L93 Difference]: Finished difference Result 2390 states and 4093 transitions. [2019-10-14 23:44:39,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:44:39,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-14 23:44:39,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:44:39,625 INFO L225 Difference]: With dead ends: 2390 [2019-10-14 23:44:39,626 INFO L226 Difference]: Without dead ends: 1617 [2019-10-14 23:44:39,633 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:44:39,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2019-10-14 23:44:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1594. [2019-10-14 23:44:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1594 states. [2019-10-14 23:44:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 2070 transitions. [2019-10-14 23:44:39,796 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 2070 transitions. Word has length 56 [2019-10-14 23:44:39,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:44:39,797 INFO L462 AbstractCegarLoop]: Abstraction has 1594 states and 2070 transitions. [2019-10-14 23:44:39,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:44:39,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 2070 transitions. [2019-10-14 23:44:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-14 23:44:39,808 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:44:39,808 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, 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 23:44:39,809 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:44:39,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:44:39,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1633149148, now seen corresponding path program 1 times [2019-10-14 23:44:39,811 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:44:39,811 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510835931] [2019-10-14 23:44:39,811 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:44:39,811 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:44:39,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:44:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:44:41,272 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 505 [2019-10-14 23:44:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:44:41,395 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 23:44:41,395 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510835931] [2019-10-14 23:44:41,395 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:44:41,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:44:41,396 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821969962] [2019-10-14 23:44:41,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:44:41,398 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:44:41,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:44:41,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:44:41,399 INFO L87 Difference]: Start difference. First operand 1594 states and 2070 transitions. Second operand 7 states. [2019-10-14 23:44:42,746 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 511 [2019-10-14 23:44:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:44:49,969 INFO L93 Difference]: Finished difference Result 3490 states and 4654 transitions. [2019-10-14 23:44:49,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:44:49,970 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-14 23:44:49,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:44:49,984 INFO L225 Difference]: With dead ends: 3490 [2019-10-14 23:44:49,984 INFO L226 Difference]: Without dead ends: 2530 [2019-10-14 23:44:49,989 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:44:49,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2019-10-14 23:44:50,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2514. [2019-10-14 23:44:50,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2514 states. [2019-10-14 23:44:50,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2514 states to 2514 states and 3354 transitions. [2019-10-14 23:44:50,099 INFO L78 Accepts]: Start accepts. Automaton has 2514 states and 3354 transitions. Word has length 56 [2019-10-14 23:44:50,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:44:50,099 INFO L462 AbstractCegarLoop]: Abstraction has 2514 states and 3354 transitions. [2019-10-14 23:44:50,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:44:50,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2514 states and 3354 transitions. [2019-10-14 23:44:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-14 23:44:50,103 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:44:50,103 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, 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 23:44:50,104 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:44:50,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:44:50,104 INFO L82 PathProgramCache]: Analyzing trace with hash -755922083, now seen corresponding path program 1 times [2019-10-14 23:44:50,105 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:44:50,105 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461368547] [2019-10-14 23:44:50,105 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:44:50,105 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:44:50,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:44:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:44:51,652 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 505 [2019-10-14 23:44:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:44:51,700 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 23:44:51,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461368547] [2019-10-14 23:44:51,701 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:44:51,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:44:51,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064183368] [2019-10-14 23:44:51,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:44:51,702 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:44:51,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:44:51,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:44:51,703 INFO L87 Difference]: Start difference. First operand 2514 states and 3354 transitions. Second operand 6 states. [2019-10-14 23:44:53,115 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 511