/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:42:22,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:42:22,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:42:22,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:42:22,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:42:22,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:42:22,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:42:22,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:42:22,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:42:22,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:42:22,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:42:22,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:42:22,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:42:22,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:42:22,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:42:22,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:42:22,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:42:22,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:42:22,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:42:22,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:42:22,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:42:22,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:42:22,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:42:22,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:42:22,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:42:22,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:42:22,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:42:22,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:42:22,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:42:22,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:42:22,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:42:22,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:42:22,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:42:22,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:42:22,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:42:22,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:42:22,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:42:22,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:42:22,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:42:22,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:42:22,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:42:22,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 19:42:22,387 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:42:22,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:42:22,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:42:22,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:42:22,389 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:42:22,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:42:22,389 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:42:22,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:42:22,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:42:22,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:42:22,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:42:22,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:42:22,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:42:22,391 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:42:22,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:42:22,391 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:42:22,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:42:22,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:42:22,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:42:22,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:42:22,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:42:22,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:42:22,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:42:22,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:42:22,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:42:22,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:42:22,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:42:22,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:42:22,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:42:22,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:42:22,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:42:22,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:42:22,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:42:22,701 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:42:22,702 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:42:22,703 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:42:22,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4ceca408/0ff3a7044e164487b8456d0530610a0c/FLAGd900fb724 [2020-10-12 19:42:23,467 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:42:23,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:42:23,490 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4ceca408/0ff3a7044e164487b8456d0530610a0c/FLAGd900fb724 [2020-10-12 19:42:23,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4ceca408/0ff3a7044e164487b8456d0530610a0c [2020-10-12 19:42:23,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:42:23,631 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:42:23,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:42:23,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:42:23,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:42:23,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:42:23" (1/1) ... [2020-10-12 19:42:23,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a565b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:23, skipping insertion in model container [2020-10-12 19:42:23,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:42:23" (1/1) ... [2020-10-12 19:42:23,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:42:23,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:42:25,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:42:25,051 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:42:25,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:42:25,643 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:42:25,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:25 WrapperNode [2020-10-12 19:42:25,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:42:25,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:42:25,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:42:25,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:42:25,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:25" (1/1) ... [2020-10-12 19:42:25,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:25" (1/1) ... [2020-10-12 19:42:25,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:25" (1/1) ... [2020-10-12 19:42:25,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:25" (1/1) ... [2020-10-12 19:42:25,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:25" (1/1) ... [2020-10-12 19:42:25,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:25" (1/1) ... [2020-10-12 19:42:25,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:25" (1/1) ... [2020-10-12 19:42:25,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:42:25,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:42:25,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:42:25,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:42:25,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-12 19:42:25,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:42:25,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:42:25,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:42:25,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:42:25,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:42:25,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:42:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:42:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 19:42:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:42:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:42:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:42:25,952 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:42:25,952 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:42:25,952 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:42:25,952 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:42:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:42:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:42:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:42:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 19:42:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:42:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:42:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:42:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:42:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:42:29,567 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:42:29,567 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:42:29,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:42:29 BoogieIcfgContainer [2020-10-12 19:42:29,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:42:29,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:42:29,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:42:29,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:42:29,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:42:23" (1/3) ... [2020-10-12 19:42:29,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738e55db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:42:29, skipping insertion in model container [2020-10-12 19:42:29,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:42:25" (2/3) ... [2020-10-12 19:42:29,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738e55db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:42:29, skipping insertion in model container [2020-10-12 19:42:29,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:42:29" (3/3) ... [2020-10-12 19:42:29,586 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:42:29,597 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:42:29,606 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-12 19:42:29,620 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-12 19:42:29,656 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:42:29,656 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:42:29,656 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:42:29,656 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:42:29,657 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:42:29,657 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:42:29,657 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:42:29,657 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:42:29,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states. [2020-10-12 19:42:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-12 19:42:29,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:29,746 INFO L422 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, 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] [2020-10-12 19:42:29,747 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:29,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:29,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1865040373, now seen corresponding path program 1 times [2020-10-12 19:42:29,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:29,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079970495] [2020-10-12 19:42:29,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:30,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:30,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:31,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:31,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:31,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:31,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:32,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:32,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:33,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:33,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:34,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:34,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:34,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:35,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:35,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 19:42:35,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:42:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 19:42:35,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:42:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:42:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 19:42:35,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:42:36,617 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:42:36,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:36,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:36,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:36,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:36,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:36,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 19:42:36,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:36,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:36,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:36,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:42:36,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079970495] [2020-10-12 19:42:36,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:36,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:42:36,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024674118] [2020-10-12 19:42:36,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:42:36,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:36,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:42:36,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:42:36,734 INFO L87 Difference]: Start difference. First operand 1129 states. Second operand 7 states. [2020-10-12 19:42:37,873 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 470 [2020-10-12 19:42:51,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:51,894 INFO L93 Difference]: Finished difference Result 3534 states and 5982 transitions. [2020-10-12 19:42:51,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:42:51,896 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-12 19:42:51,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:51,943 INFO L225 Difference]: With dead ends: 3534 [2020-10-12 19:42:51,943 INFO L226 Difference]: Without dead ends: 2815 [2020-10-12 19:42:51,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:42:51,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2020-10-12 19:42:52,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 1828. [2020-10-12 19:42:52,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2020-10-12 19:42:52,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2515 transitions. [2020-10-12 19:42:52,144 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2515 transitions. Word has length 89 [2020-10-12 19:42:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:52,145 INFO L479 AbstractCegarLoop]: Abstraction has 1828 states and 2515 transitions. [2020-10-12 19:42:52,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:42:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2515 transitions. [2020-10-12 19:42:52,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 19:42:52,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:52,154 INFO L422 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, 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] [2020-10-12 19:42:52,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:42:52,156 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:52,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:52,159 INFO L82 PathProgramCache]: Analyzing trace with hash -158426861, now seen corresponding path program 1 times [2020-10-12 19:42:52,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:52,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801025116] [2020-10-12 19:42:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:52,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:52,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:52,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:52,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:52,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:53,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:53,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:53,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:57,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:57,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 19:42:57,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:42:57,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-12 19:42:57,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:57,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:42:57,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 19:42:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 19:42:57,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:58,429 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:42:58,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:58,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:58,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:58,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:58,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:58,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 19:42:58,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:58,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:42:58,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801025116] [2020-10-12 19:42:58,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:58,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:42:58,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693869620] [2020-10-12 19:42:58,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:42:58,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:58,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:42:58,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:42:58,628 INFO L87 Difference]: Start difference. First operand 1828 states and 2515 transitions. Second operand 7 states. [2020-10-12 19:42:59,650 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-12 19:43:11,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:43:11,404 INFO L93 Difference]: Finished difference Result 5134 states and 7207 transitions. [2020-10-12 19:43:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:43:11,405 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-12 19:43:11,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:43:11,427 INFO L225 Difference]: With dead ends: 5134 [2020-10-12 19:43:11,427 INFO L226 Difference]: Without dead ends: 4095 [2020-10-12 19:43:11,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:43:11,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4095 states. [2020-10-12 19:43:11,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4095 to 2661. [2020-10-12 19:43:11,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2661 states. [2020-10-12 19:43:11,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3751 transitions. [2020-10-12 19:43:11,577 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3751 transitions. Word has length 90 [2020-10-12 19:43:11,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:43:11,579 INFO L479 AbstractCegarLoop]: Abstraction has 2661 states and 3751 transitions. [2020-10-12 19:43:11,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:43:11,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3751 transitions. [2020-10-12 19:43:11,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 19:43:11,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:43:11,587 INFO L422 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, 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] [2020-10-12 19:43:11,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:43:11,587 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:43:11,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:43:11,588 INFO L82 PathProgramCache]: Analyzing trace with hash -759680036, now seen corresponding path program 1 times [2020-10-12 19:43:11,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:43:11,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291924106] [2020-10-12 19:43:11,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:43:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:11,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:11,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:11,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:11,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:12,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:12,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:13,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:13,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:16,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:16,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 19:43:16,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:43:16,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 19:43:16,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:16,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:43:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:43:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 19:43:16,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:43:17,964 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:43:17,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:43:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:17,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:17,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:17,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:43:17,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:43:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 19:43:17,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:43:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:43:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:43:17,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:43:18,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291924106] [2020-10-12 19:43:18,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:43:18,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:43:18,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206376946] [2020-10-12 19:43:18,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:43:18,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:43:18,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:43:18,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:43:18,036 INFO L87 Difference]: Start difference. First operand 2661 states and 3751 transitions. Second operand 7 states. [2020-10-12 19:43:19,352 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 470 [2020-10-12 19:43:28,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:43:28,712 INFO L93 Difference]: Finished difference Result 5965 states and 8483 transitions. [2020-10-12 19:43:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:43:28,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-12 19:43:28,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:43:28,735 INFO L225 Difference]: With dead ends: 5965 [2020-10-12 19:43:28,735 INFO L226 Difference]: Without dead ends: 4962 [2020-10-12 19:43:28,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:43:28,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4962 states. [2020-10-12 19:43:28,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4962 to 3095. [2020-10-12 19:43:28,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3095 states. [2020-10-12 19:43:28,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 4402 transitions. [2020-10-12 19:43:28,863 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 4402 transitions. Word has length 90 [2020-10-12 19:43:28,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:43:28,864 INFO L479 AbstractCegarLoop]: Abstraction has 3095 states and 4402 transitions. [2020-10-12 19:43:28,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:43:28,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 4402 transitions. [2020-10-12 19:43:28,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:43:28,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:43:28,870 INFO L422 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, 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] [2020-10-12 19:43:28,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:43:28,871 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:43:28,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:43:28,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1776215766, now seen corresponding path program 1 times [2020-10-12 19:43:28,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:43:28,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57607160] [2020-10-12 19:43:28,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:43:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:28,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:29,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:29,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:29,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:29,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:30,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:30,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:33,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:33,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:43:33,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:43:33,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:43:33,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:43:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-12 19:43:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 19:43:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:35,083 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:43:35,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:43:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:35,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:35,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:35,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:43:35,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:43:35,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 19:43:35,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:43:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:43:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:43:35,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:43:35,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57607160] [2020-10-12 19:43:35,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:43:35,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:43:35,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635335931] [2020-10-12 19:43:35,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:43:35,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:43:35,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:43:35,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:43:35,149 INFO L87 Difference]: Start difference. First operand 3095 states and 4402 transitions. Second operand 7 states. [2020-10-12 19:43:36,158 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-12 19:43:42,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:43:42,928 INFO L93 Difference]: Finished difference Result 8087 states and 11674 transitions. [2020-10-12 19:43:42,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:43:42,928 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-12 19:43:42,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:43:42,956 INFO L225 Difference]: With dead ends: 8087 [2020-10-12 19:43:42,956 INFO L226 Difference]: Without dead ends: 6630 [2020-10-12 19:43:42,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:43:42,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6630 states. [2020-10-12 19:43:43,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6630 to 3670. [2020-10-12 19:43:43,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3670 states. [2020-10-12 19:43:43,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 5249 transitions. [2020-10-12 19:43:43,144 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 5249 transitions. Word has length 91 [2020-10-12 19:43:43,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:43:43,145 INFO L479 AbstractCegarLoop]: Abstraction has 3670 states and 5249 transitions. [2020-10-12 19:43:43,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:43:43,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 5249 transitions. [2020-10-12 19:43:43,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:43:43,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:43:43,156 INFO L422 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, 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] [2020-10-12 19:43:43,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:43:43,157 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:43:43,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:43:43,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1512239468, now seen corresponding path program 1 times [2020-10-12 19:43:43,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:43:43,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342398090] [2020-10-12 19:43:43,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:43:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:43,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:43,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:43,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:43,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:43,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:44,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:44,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:44,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:44,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:44,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:45,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:48,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:48,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:43:48,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:43:48,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 19:43:48,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:48,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:43:48,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:43:48,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 19:43:48,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:49,587 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:43:49,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:43:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:49,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:49,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:49,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:43:49,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:43:49,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:43:49,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:49,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:43:49,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:43:49,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:43:49,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:49,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:43:49,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342398090] [2020-10-12 19:43:49,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:43:49,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:43:49,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600124842] [2020-10-12 19:43:49,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:43:49,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:43:49,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:43:49,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:43:49,685 INFO L87 Difference]: Start difference. First operand 3670 states and 5249 transitions. Second operand 10 states. [2020-10-12 19:43:52,008 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 503 DAG size of output: 500 [2020-10-12 19:43:53,498 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-12 19:44:05,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:44:05,435 INFO L93 Difference]: Finished difference Result 17756 states and 26513 transitions. [2020-10-12 19:44:05,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:44:05,435 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2020-10-12 19:44:05,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:44:05,487 INFO L225 Difference]: With dead ends: 17756 [2020-10-12 19:44:05,488 INFO L226 Difference]: Without dead ends: 15068 [2020-10-12 19:44:05,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2020-10-12 19:44:05,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15068 states. [2020-10-12 19:44:05,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15068 to 4887. [2020-10-12 19:44:05,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4887 states. [2020-10-12 19:44:05,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4887 states to 4887 states and 7082 transitions. [2020-10-12 19:44:05,896 INFO L78 Accepts]: Start accepts. Automaton has 4887 states and 7082 transitions. Word has length 91 [2020-10-12 19:44:05,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:44:05,898 INFO L479 AbstractCegarLoop]: Abstraction has 4887 states and 7082 transitions. [2020-10-12 19:44:05,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:44:05,898 INFO L276 IsEmpty]: Start isEmpty. Operand 4887 states and 7082 transitions. [2020-10-12 19:44:05,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:44:05,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:05,906 INFO L422 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, 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] [2020-10-12 19:44:05,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:44:05,907 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:05,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:05,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1077691114, now seen corresponding path program 1 times [2020-10-12 19:44:05,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:05,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792272575] [2020-10-12 19:44:05,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:05,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:06,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:06,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:06,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:06,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:07,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:07,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:07,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:07,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:08,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:08,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:08,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:10,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:10,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:44:10,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:44:10,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 19:44:10,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:10,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:44:10,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:44:10,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 19:44:10,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:12,055 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:44:12,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:44:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:12,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:12,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:12,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:44:12,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:44:12,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 19:44:12,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:44:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:44:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:44:12,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:12,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:44:12,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792272575] [2020-10-12 19:44:12,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:44:12,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:44:12,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71234748] [2020-10-12 19:44:12,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:44:12,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:44:12,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:44:12,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:44:12,130 INFO L87 Difference]: Start difference. First operand 4887 states and 7082 transitions. Second operand 11 states. [2020-10-12 19:44:13,233 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 478 [2020-10-12 19:44:22,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:44:22,454 INFO L93 Difference]: Finished difference Result 10226 states and 15031 transitions. [2020-10-12 19:44:22,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 19:44:22,454 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2020-10-12 19:44:22,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:44:22,475 INFO L225 Difference]: With dead ends: 10226 [2020-10-12 19:44:22,475 INFO L226 Difference]: Without dead ends: 9473 [2020-10-12 19:44:22,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2020-10-12 19:44:22,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9473 states. [2020-10-12 19:44:22,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9473 to 4899. [2020-10-12 19:44:22,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4899 states. [2020-10-12 19:44:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4899 states to 4899 states and 7098 transitions. [2020-10-12 19:44:22,924 INFO L78 Accepts]: Start accepts. Automaton has 4899 states and 7098 transitions. Word has length 91 [2020-10-12 19:44:22,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:44:22,924 INFO L479 AbstractCegarLoop]: Abstraction has 4899 states and 7098 transitions. [2020-10-12 19:44:22,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:44:22,924 INFO L276 IsEmpty]: Start isEmpty. Operand 4899 states and 7098 transitions. [2020-10-12 19:44:22,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:44:22,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:22,932 INFO L422 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, 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] [2020-10-12 19:44:22,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:44:22,933 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:22,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:22,933 INFO L82 PathProgramCache]: Analyzing trace with hash -266833800, now seen corresponding path program 1 times [2020-10-12 19:44:22,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:22,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881815188] [2020-10-12 19:44:22,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:22,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:23,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:23,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:23,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:23,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:23,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:23,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:24,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:27,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:27,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:44:27,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:44:27,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:44:27,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 19:44:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:44:27,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:44:27,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:29,167 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:44:29,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:44:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:29,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:29,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:29,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:44:29,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:44:29,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:44:29,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:29,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:44:29,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:44:29,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:44:29,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:44:29,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881815188] [2020-10-12 19:44:29,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:44:29,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 19:44:29,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735128319] [2020-10-12 19:44:29,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 19:44:29,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:44:29,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 19:44:29,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-12 19:44:29,246 INFO L87 Difference]: Start difference. First operand 4899 states and 7098 transitions. Second operand 8 states. [2020-10-12 19:44:31,337 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 483 DAG size of output: 482 [2020-10-12 19:44:37,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:44:37,358 INFO L93 Difference]: Finished difference Result 7027 states and 10214 transitions. [2020-10-12 19:44:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 19:44:37,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 91 [2020-10-12 19:44:37,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:44:37,371 INFO L225 Difference]: With dead ends: 7027 [2020-10-12 19:44:37,372 INFO L226 Difference]: Without dead ends: 6001 [2020-10-12 19:44:37,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:44:37,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2020-10-12 19:44:37,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 4367. [2020-10-12 19:44:37,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4367 states. [2020-10-12 19:44:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4367 states to 4367 states and 6318 transitions. [2020-10-12 19:44:37,743 INFO L78 Accepts]: Start accepts. Automaton has 4367 states and 6318 transitions. Word has length 91 [2020-10-12 19:44:37,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:44:37,744 INFO L479 AbstractCegarLoop]: Abstraction has 4367 states and 6318 transitions. [2020-10-12 19:44:37,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 19:44:37,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4367 states and 6318 transitions. [2020-10-12 19:44:37,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 19:44:37,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:37,751 INFO L422 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, 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] [2020-10-12 19:44:37,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:44:37,752 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:37,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:37,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1317586012, now seen corresponding path program 1 times [2020-10-12 19:44:37,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:37,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299744908] [2020-10-12 19:44:37,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:37,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:37,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:37,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:38,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:38,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:38,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:38,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:39,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:42,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:42,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 19:44:42,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:44:42,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 19:44:42,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:42,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:44:42,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:44:42,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 19:44:42,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:43,869 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:44:43,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:44:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:43,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:43,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:43,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:44:43,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:44:43,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:44:43,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:43,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:44:43,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:44:43,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:44:43,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:43,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:44:43,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299744908] [2020-10-12 19:44:43,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:44:43,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:44:43,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540036559] [2020-10-12 19:44:43,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:44:43,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:44:43,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:44:43,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:44:43,935 INFO L87 Difference]: Start difference. First operand 4367 states and 6318 transitions. Second operand 10 states. [2020-10-12 19:44:45,073 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 486 [2020-10-12 19:44:57,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:44:57,695 INFO L93 Difference]: Finished difference Result 8721 states and 12750 transitions. [2020-10-12 19:44:57,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 19:44:57,696 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2020-10-12 19:44:57,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:44:57,711 INFO L225 Difference]: With dead ends: 8721 [2020-10-12 19:44:57,711 INFO L226 Difference]: Without dead ends: 7890 [2020-10-12 19:44:57,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2020-10-12 19:44:57,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7890 states. [2020-10-12 19:44:58,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7890 to 3997. [2020-10-12 19:44:58,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3997 states. [2020-10-12 19:44:58,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 5766 transitions. [2020-10-12 19:44:58,029 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 5766 transitions. Word has length 92 [2020-10-12 19:44:58,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:44:58,030 INFO L479 AbstractCegarLoop]: Abstraction has 3997 states and 5766 transitions. [2020-10-12 19:44:58,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:44:58,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 5766 transitions. [2020-10-12 19:44:58,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 19:44:58,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:58,036 INFO L422 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, 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] [2020-10-12 19:44:58,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:44:58,037 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:58,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:58,037 INFO L82 PathProgramCache]: Analyzing trace with hash 973793068, now seen corresponding path program 1 times [2020-10-12 19:44:58,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:58,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799905545] [2020-10-12 19:44:58,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:58,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:58,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:58,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:58,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:58,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:58,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:58,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:00,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:00,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:01,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:03,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:03,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 19:45:03,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:45:03,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 19:45:03,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:03,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:45:03,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:45:03,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 19:45:03,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:04,370 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:45:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:45:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:04,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:04,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:04,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:45:04,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:45:04,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 19:45:04,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:04,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:45:04,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:45:04,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:45:04,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:04,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:45:04,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799905545] [2020-10-12 19:45:04,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:45:04,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:45:04,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269449381] [2020-10-12 19:45:04,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:45:04,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:45:04,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:45:04,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:45:04,439 INFO L87 Difference]: Start difference. First operand 3997 states and 5766 transitions. Second operand 10 states. [2020-10-12 19:45:05,730 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 492 [2020-10-12 19:45:19,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:45:19,371 INFO L93 Difference]: Finished difference Result 8975 states and 12979 transitions. [2020-10-12 19:45:19,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 19:45:19,371 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2020-10-12 19:45:19,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:45:19,384 INFO L225 Difference]: With dead ends: 8975 [2020-10-12 19:45:19,385 INFO L226 Difference]: Without dead ends: 8285 [2020-10-12 19:45:19,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2020-10-12 19:45:19,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8285 states. [2020-10-12 19:45:19,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8285 to 3997. [2020-10-12 19:45:19,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3997 states. [2020-10-12 19:45:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 5766 transitions. [2020-10-12 19:45:19,816 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 5766 transitions. Word has length 92 [2020-10-12 19:45:19,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:45:19,817 INFO L479 AbstractCegarLoop]: Abstraction has 3997 states and 5766 transitions. [2020-10-12 19:45:19,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:45:19,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 5766 transitions. [2020-10-12 19:45:19,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:45:19,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:45:19,822 INFO L422 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, 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] [2020-10-12 19:45:19,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:45:19,823 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:45:19,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:45:19,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1592010828, now seen corresponding path program 1 times [2020-10-12 19:45:19,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:45:19,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130007370] [2020-10-12 19:45:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:45:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:19,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:19,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:20,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:20,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:20,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:20,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:20,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:21,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:21,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:21,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:22,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:22,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:22,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:23,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:23,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:24,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:24,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:24,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:45:24,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 19:45:24,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 19:45:24,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:24,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:45:24,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:45:24,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 19:45:24,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:26,282 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:45:26,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:45:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:26,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:26,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:26,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:45:26,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:45:26,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:45:26,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:26,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:45:26,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:45:26,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:45:26,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:26,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:45:26,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130007370] [2020-10-12 19:45:26,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:45:26,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:45:26,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717517578] [2020-10-12 19:45:26,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:45:26,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:45:26,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:45:26,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:45:26,342 INFO L87 Difference]: Start difference. First operand 3997 states and 5766 transitions. Second operand 14 states. [2020-10-12 19:45:27,487 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 477 [2020-10-12 19:45:38,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:45:38,538 INFO L93 Difference]: Finished difference Result 9052 states and 13383 transitions. [2020-10-12 19:45:38,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 19:45:38,538 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 93 [2020-10-12 19:45:38,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:45:38,545 INFO L225 Difference]: With dead ends: 9052 [2020-10-12 19:45:38,545 INFO L226 Difference]: Without dead ends: 7664 [2020-10-12 19:45:38,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2020-10-12 19:45:38,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7664 states. [2020-10-12 19:45:38,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7664 to 3997. [2020-10-12 19:45:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3997 states. [2020-10-12 19:45:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 5764 transitions. [2020-10-12 19:45:38,936 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 5764 transitions. Word has length 93 [2020-10-12 19:45:38,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:45:38,936 INFO L479 AbstractCegarLoop]: Abstraction has 3997 states and 5764 transitions. [2020-10-12 19:45:38,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:45:38,936 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 5764 transitions. [2020-10-12 19:45:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:45:38,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:45:38,940 INFO L422 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, 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] [2020-10-12 19:45:38,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 19:45:38,941 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:45:38,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:45:38,941 INFO L82 PathProgramCache]: Analyzing trace with hash 315787954, now seen corresponding path program 1 times [2020-10-12 19:45:38,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:45:38,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691702290] [2020-10-12 19:45:38,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:45:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:39,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:39,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:39,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:39,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:39,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:39,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:40,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:40,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:41,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:41,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:41,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:42,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:42,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:42,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:43,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:43,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:43,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:43,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:43,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:45:43,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-12 19:45:43,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 19:45:43,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:43,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:45:43,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:45:43,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 19:45:43,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:45,388 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:45:45,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:45:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:45,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:45,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:45,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:45:45,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:45:45,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:45:45,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:45:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:45:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:45:45,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:45:45,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691702290] [2020-10-12 19:45:45,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:45:45,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:45:45,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060127674] [2020-10-12 19:45:45,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:45:45,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:45:45,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:45:45,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:45:45,449 INFO L87 Difference]: Start difference. First operand 3997 states and 5764 transitions. Second operand 14 states. [2020-10-12 19:45:46,579 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 478 [2020-10-12 19:45:57,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:45:57,005 INFO L93 Difference]: Finished difference Result 9270 states and 13806 transitions. [2020-10-12 19:45:57,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 19:45:57,010 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 93 [2020-10-12 19:45:57,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:45:57,018 INFO L225 Difference]: With dead ends: 9270 [2020-10-12 19:45:57,018 INFO L226 Difference]: Without dead ends: 7936 [2020-10-12 19:45:57,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=197, Invalid=733, Unknown=0, NotChecked=0, Total=930 [2020-10-12 19:45:57,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7936 states. [2020-10-12 19:45:57,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7936 to 3997. [2020-10-12 19:45:57,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3997 states. [2020-10-12 19:45:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 5762 transitions. [2020-10-12 19:45:57,330 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 5762 transitions. Word has length 93 [2020-10-12 19:45:57,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:45:57,330 INFO L479 AbstractCegarLoop]: Abstraction has 3997 states and 5762 transitions. [2020-10-12 19:45:57,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:45:57,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 5762 transitions. [2020-10-12 19:45:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:45:57,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:45:57,334 INFO L422 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, 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] [2020-10-12 19:45:57,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 19:45:57,335 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:45:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:45:57,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1910485232, now seen corresponding path program 1 times [2020-10-12 19:45:57,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:45:57,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736602499] [2020-10-12 19:45:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:45:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:57,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:57,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:57,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:57,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:57,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:59,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:59,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:59,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:00,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:00,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:01,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:01,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:02,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:02,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:02,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:46:02,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:46:02,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 19:46:02,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:46:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:46:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 19:46:02,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:03,537 WARN L193 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-12 19:46:03,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:46:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:03,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:03,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:03,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:46:03,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:46:03,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 19:46:03,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:03,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:46:03,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:46:03,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:46:03,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:03,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:46:03,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736602499] [2020-10-12 19:46:03,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:46:03,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:46:03,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962989067] [2020-10-12 19:46:03,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:46:03,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:46:03,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:46:03,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:46:03,618 INFO L87 Difference]: Start difference. First operand 3997 states and 5762 transitions. Second operand 12 states.