/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:59:46,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:59:46,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:59:46,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:59:46,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:59:46,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:59:46,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:59:46,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:59:46,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:59:46,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:59:46,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:59:46,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:59:46,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:59:46,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:59:46,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:59:46,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:59:46,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:59:46,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:59:46,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:59:46,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:59:46,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:59:46,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:59:46,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:59:46,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:59:46,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:59:46,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:59:46,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:59:46,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:59:46,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:59:46,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:59:46,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:59:46,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:59:46,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:59:46,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:59:46,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:59:46,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:59:46,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:59:46,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:59:46,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:59:46,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:59:46,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:59:46,479 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 [2020-10-15 02:59:46,501 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:59:46,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:59:46,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:59:46,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:59:46,503 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:59:46,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:59:46,503 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:59:46,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:59:46,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:59:46,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:59:46,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:59:46,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:59:46,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:59:46,504 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:59:46,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:59:46,505 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:59:46,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:59:46,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:59:46,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:59:46,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:59:46,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:59:46,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:59:46,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:59:46,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:59:46,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:59:46,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:59:46,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:59:46,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:59:46,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:59:46,507 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:59:46,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:59:46,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:59:46,859 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:59:46,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:59:46,861 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:59:46,861 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 02:59:46,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ae18207b/414071835c3b4fe5b3aba4457d94b7fc/FLAGc109a0417 [2020-10-15 02:59:47,559 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:59:47,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 02:59:47,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ae18207b/414071835c3b4fe5b3aba4457d94b7fc/FLAGc109a0417 [2020-10-15 02:59:47,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ae18207b/414071835c3b4fe5b3aba4457d94b7fc [2020-10-15 02:59:47,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:59:47,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:59:47,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:59:47,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:59:47,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:59:47,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:59:47" (1/1) ... [2020-10-15 02:59:47,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf49487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:47, skipping insertion in model container [2020-10-15 02:59:47,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:59:47" (1/1) ... [2020-10-15 02:59:47,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:59:47,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:59:48,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:59:48,606 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:59:48,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:59:48,854 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:59:48,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:48 WrapperNode [2020-10-15 02:59:48,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:59:48,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:59:48,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:59:48,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:59:48,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:48" (1/1) ... [2020-10-15 02:59:48,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:48" (1/1) ... [2020-10-15 02:59:48,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:48" (1/1) ... [2020-10-15 02:59:48,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:48" (1/1) ... [2020-10-15 02:59:48,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:48" (1/1) ... [2020-10-15 02:59:48,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:48" (1/1) ... [2020-10-15 02:59:48,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:48" (1/1) ... [2020-10-15 02:59:48,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:59:48,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:59:48,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:59:48,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:59:48,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:48" (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 [2020-10-15 02:59:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:59:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:59:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:59:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:59:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:59:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:59:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:59:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:59:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:59:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:59:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:59:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:59:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:59:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:59:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:59:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:59:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:59:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:59:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:59:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:59:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:59:50,853 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:59:50,853 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 02:59:50,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:59:50 BoogieIcfgContainer [2020-10-15 02:59:50,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:59:50,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:59:50,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:59:50,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:59:50,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:59:47" (1/3) ... [2020-10-15 02:59:50,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577cc781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:59:50, skipping insertion in model container [2020-10-15 02:59:50,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:48" (2/3) ... [2020-10-15 02:59:50,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577cc781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:59:50, skipping insertion in model container [2020-10-15 02:59:50,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:59:50" (3/3) ... [2020-10-15 02:59:50,871 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 02:59:50,881 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:59:50,890 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-15 02:59:50,904 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 02:59:50,932 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:59:50,933 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:59:50,933 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:59:50,933 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:59:50,933 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:59:50,933 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:59:50,934 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:59:50,934 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:59:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states. [2020-10-15 02:59:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-15 02:59:50,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:59:50,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:59:50,983 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:59:50,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:59:50,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1760839587, now seen corresponding path program 1 times [2020-10-15 02:59:51,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:59:51,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571540722] [2020-10-15 02:59:51,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:59:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:51,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:51,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:52,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:52,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:52,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:52,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:52,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:52,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:52,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:53,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:54,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:54,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:56,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:56,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-15 02:59:56,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 02:59:56,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-15 02:59:56,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:56,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:56,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:59:56,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-15 02:59:56,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-15 02:59:56,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:59:57,051 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 02:59:57,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:59:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:59:57,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:59:57,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:59:57,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:59:57,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:59:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:59:57,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:59:57,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:59:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:59:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:59:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:59:57,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:59:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:59:57,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571540722] [2020-10-15 02:59:57,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:59:57,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 02:59:57,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360353690] [2020-10-15 02:59:57,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 02:59:57,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:59:57,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 02:59:57,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 02:59:57,165 INFO L87 Difference]: Start difference. First operand 393 states. Second operand 4 states. [2020-10-15 02:59:57,478 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 03:00:00,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:00,327 INFO L93 Difference]: Finished difference Result 714 states and 1263 transitions. [2020-10-15 03:00:00,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:00,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 145 [2020-10-15 03:00:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:00,359 INFO L225 Difference]: With dead ends: 714 [2020-10-15 03:00:00,359 INFO L226 Difference]: Without dead ends: 559 [2020-10-15 03:00:00,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:00,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-10-15 03:00:00,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 557. [2020-10-15 03:00:00,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-10-15 03:00:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 812 transitions. [2020-10-15 03:00:00,457 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 812 transitions. Word has length 145 [2020-10-15 03:00:00,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:00,458 INFO L479 AbstractCegarLoop]: Abstraction has 557 states and 812 transitions. [2020-10-15 03:00:00,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:00:00,459 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 812 transitions. [2020-10-15 03:00:00,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-15 03:00:00,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:00,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:00:00,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:00:00,466 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:00,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:00,466 INFO L82 PathProgramCache]: Analyzing trace with hash -221119843, now seen corresponding path program 1 times [2020-10-15 03:00:00,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:00,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352236346] [2020-10-15 03:00:00,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:00,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:00,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:00,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:00,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:00,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:01,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:01,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:01,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:01,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:01,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:02,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:03,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:05,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:05,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:05,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-15 03:00:05,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:00:05,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:00:05,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:05,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:00:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-15 03:00:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-15 03:00:05,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:05,839 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:00:05,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:05,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:05,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:05,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:05,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:05,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:00:05,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:05,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:05,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:05,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:05,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352236346] [2020-10-15 03:00:05,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:05,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:00:05,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940475755] [2020-10-15 03:00:05,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:00:05,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:05,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:00:05,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:00:05,958 INFO L87 Difference]: Start difference. First operand 557 states and 812 transitions. Second operand 4 states. [2020-10-15 03:00:06,232 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 03:00:08,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:08,315 INFO L93 Difference]: Finished difference Result 1114 states and 1681 transitions. [2020-10-15 03:00:08,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:08,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 145 [2020-10-15 03:00:08,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:08,328 INFO L225 Difference]: With dead ends: 1114 [2020-10-15 03:00:08,328 INFO L226 Difference]: Without dead ends: 897 [2020-10-15 03:00:08,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:08,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2020-10-15 03:00:08,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 895. [2020-10-15 03:00:08,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-15 03:00:08,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1328 transitions. [2020-10-15 03:00:08,390 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1328 transitions. Word has length 145 [2020-10-15 03:00:08,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:08,391 INFO L479 AbstractCegarLoop]: Abstraction has 895 states and 1328 transitions. [2020-10-15 03:00:08,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:00:08,391 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1328 transitions. [2020-10-15 03:00:08,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-15 03:00:08,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:08,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:00:08,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:00:08,398 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:08,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:08,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1361470691, now seen corresponding path program 1 times [2020-10-15 03:00:08,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:08,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378349408] [2020-10-15 03:00:08,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:08,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:08,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:08,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:08,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:08,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:08,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:08,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:08,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:09,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:09,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:09,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:11,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:13,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:13,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:13,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-15 03:00:13,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:00:13,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 03:00:13,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:13,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 03:00:13,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:13,889 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:00:13,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:13,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:13,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:13,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:13,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:13,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 03:00:13,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:13,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:13,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:14,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378349408] [2020-10-15 03:00:14,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:14,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:14,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961167890] [2020-10-15 03:00:14,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:14,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:14,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:14,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:14,030 INFO L87 Difference]: Start difference. First operand 895 states and 1328 transitions. Second operand 5 states. [2020-10-15 03:00:17,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:17,335 INFO L93 Difference]: Finished difference Result 2604 states and 3855 transitions. [2020-10-15 03:00:17,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:17,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-10-15 03:00:17,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:17,346 INFO L225 Difference]: With dead ends: 2604 [2020-10-15 03:00:17,346 INFO L226 Difference]: Without dead ends: 1726 [2020-10-15 03:00:17,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:00:17,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2020-10-15 03:00:17,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1706. [2020-10-15 03:00:17,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1706 states. [2020-10-15 03:00:17,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2514 transitions. [2020-10-15 03:00:17,436 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2514 transitions. Word has length 145 [2020-10-15 03:00:17,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:17,437 INFO L479 AbstractCegarLoop]: Abstraction has 1706 states and 2514 transitions. [2020-10-15 03:00:17,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:17,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2514 transitions. [2020-10-15 03:00:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-15 03:00:17,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:17,443 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:00:17,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:00:17,444 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:17,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:17,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1091113530, now seen corresponding path program 1 times [2020-10-15 03:00:17,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:17,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504587005] [2020-10-15 03:00:17,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:17,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:17,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:17,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:17,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:17,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:17,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:17,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:17,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:18,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:18,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:19,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:19,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:19,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:21,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:21,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:21,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:22,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:22,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-15 03:00:22,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:00:22,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 03:00:22,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:22,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:22,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-15 03:00:22,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:22,921 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:00:22,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:22,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:22,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:22,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:22,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:22,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:00:22,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:22,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:22,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:22,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:23,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:23,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504587005] [2020-10-15 03:00:23,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:23,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:23,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083909629] [2020-10-15 03:00:23,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:23,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:23,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:23,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:23,078 INFO L87 Difference]: Start difference. First operand 1706 states and 2514 transitions. Second operand 5 states. [2020-10-15 03:00:26,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:26,735 INFO L93 Difference]: Finished difference Result 4834 states and 7132 transitions. [2020-10-15 03:00:26,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:26,736 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-15 03:00:26,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:26,752 INFO L225 Difference]: With dead ends: 4834 [2020-10-15 03:00:26,752 INFO L226 Difference]: Without dead ends: 3290 [2020-10-15 03:00:26,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:00:26,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2020-10-15 03:00:26,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3255. [2020-10-15 03:00:26,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-10-15 03:00:26,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4757 transitions. [2020-10-15 03:00:26,946 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4757 transitions. Word has length 146 [2020-10-15 03:00:26,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:26,947 INFO L479 AbstractCegarLoop]: Abstraction has 3255 states and 4757 transitions. [2020-10-15 03:00:26,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:26,947 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4757 transitions. [2020-10-15 03:00:26,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-15 03:00:26,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:26,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:00:26,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:00:26,954 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:26,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:26,955 INFO L82 PathProgramCache]: Analyzing trace with hash -227940516, now seen corresponding path program 1 times [2020-10-15 03:00:26,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:26,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470930351] [2020-10-15 03:00:26,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:27,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:27,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:27,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:27,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:27,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:27,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:27,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:29,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:29,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:29,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:31,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:31,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:31,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:32,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:32,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-15 03:00:32,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:00:32,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-15 03:00:32,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:32,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:32,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-15 03:00:32,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-15 03:00:32,341 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:00:32,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:32,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:32,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:32,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:32,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:32,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 03:00:32,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:32,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:32,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:32,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:32,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:32,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:32,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:32,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470930351] [2020-10-15 03:00:32,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:32,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:32,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453944699] [2020-10-15 03:00:32,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:32,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:32,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:32,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:32,433 INFO L87 Difference]: Start difference. First operand 3255 states and 4757 transitions. Second operand 5 states. [2020-10-15 03:00:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:35,547 INFO L93 Difference]: Finished difference Result 9536 states and 13902 transitions. [2020-10-15 03:00:35,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:35,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-10-15 03:00:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:35,577 INFO L225 Difference]: With dead ends: 9536 [2020-10-15 03:00:35,578 INFO L226 Difference]: Without dead ends: 6297 [2020-10-15 03:00:35,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:00:35,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6297 states. [2020-10-15 03:00:35,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6297 to 6262. [2020-10-15 03:00:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6262 states. [2020-10-15 03:00:35,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6262 states to 6262 states and 9052 transitions. [2020-10-15 03:00:35,954 INFO L78 Accepts]: Start accepts. Automaton has 6262 states and 9052 transitions. Word has length 147 [2020-10-15 03:00:35,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:35,955 INFO L479 AbstractCegarLoop]: Abstraction has 6262 states and 9052 transitions. [2020-10-15 03:00:35,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 6262 states and 9052 transitions. [2020-10-15 03:00:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-15 03:00:35,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:35,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:00:35,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:00:35,969 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:35,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:35,969 INFO L82 PathProgramCache]: Analyzing trace with hash 584588060, now seen corresponding path program 1 times [2020-10-15 03:00:35,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:35,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749394362] [2020-10-15 03:00:35,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:36,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:36,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:36,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:36,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:36,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:36,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:36,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:37,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:41,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:41,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-15 03:00:41,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:00:41,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:00:41,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:41,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-15 03:00:41,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:41,285 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:00:41,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:41,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:41,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:41,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:41,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:41,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:00:41,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:41,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:41,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:41,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749394362] [2020-10-15 03:00:41,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:41,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:41,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031424800] [2020-10-15 03:00:41,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:41,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:41,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:41,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:41,367 INFO L87 Difference]: Start difference. First operand 6262 states and 9052 transitions. Second operand 5 states. [2020-10-15 03:00:44,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:44,079 INFO L93 Difference]: Finished difference Result 17029 states and 24507 transitions. [2020-10-15 03:00:44,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:44,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-10-15 03:00:44,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:44,121 INFO L225 Difference]: With dead ends: 17029 [2020-10-15 03:00:44,121 INFO L226 Difference]: Without dead ends: 10838 [2020-10-15 03:00:44,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:00:44,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10838 states. [2020-10-15 03:00:44,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10838 to 10803. [2020-10-15 03:00:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10803 states. [2020-10-15 03:00:44,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10803 states to 10803 states and 15355 transitions. [2020-10-15 03:00:44,660 INFO L78 Accepts]: Start accepts. Automaton has 10803 states and 15355 transitions. Word has length 148 [2020-10-15 03:00:44,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:44,660 INFO L479 AbstractCegarLoop]: Abstraction has 10803 states and 15355 transitions. [2020-10-15 03:00:44,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:44,660 INFO L276 IsEmpty]: Start isEmpty. Operand 10803 states and 15355 transitions. [2020-10-15 03:00:44,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-15 03:00:44,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:44,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:00:44,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:00:44,678 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:44,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:44,679 INFO L82 PathProgramCache]: Analyzing trace with hash -2125107431, now seen corresponding path program 1 times [2020-10-15 03:00:44,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:44,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581055674] [2020-10-15 03:00:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:44,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:44,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:44,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:44,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:44,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:45,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:45,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:45,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:45,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:46,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:46,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:49,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:49,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-15 03:00:49,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:00:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:00:49,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:49,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 03:00:49,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:00:49,970 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:00:49,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:49,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:49,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:49,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:49,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:49,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:00:49,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:49,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:49,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:49,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:49,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:50,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:50,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581055674] [2020-10-15 03:00:50,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:50,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:50,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469854003] [2020-10-15 03:00:50,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:50,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:50,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:50,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:50,053 INFO L87 Difference]: Start difference. First operand 10803 states and 15355 transitions. Second operand 5 states. [2020-10-15 03:00:53,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:53,645 INFO L93 Difference]: Finished difference Result 31629 states and 44828 transitions. [2020-10-15 03:00:53,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:53,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-10-15 03:00:53,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:53,763 INFO L225 Difference]: With dead ends: 31629 [2020-10-15 03:00:53,763 INFO L226 Difference]: Without dead ends: 20842 [2020-10-15 03:00:53,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:00:53,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20842 states. [2020-10-15 03:00:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20842 to 20819. [2020-10-15 03:00:55,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20819 states. [2020-10-15 03:00:55,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20819 states to 20819 states and 29187 transitions. [2020-10-15 03:00:55,415 INFO L78 Accepts]: Start accepts. Automaton has 20819 states and 29187 transitions. Word has length 149 [2020-10-15 03:00:55,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:55,416 INFO L479 AbstractCegarLoop]: Abstraction has 20819 states and 29187 transitions. [2020-10-15 03:00:55,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:55,416 INFO L276 IsEmpty]: Start isEmpty. Operand 20819 states and 29187 transitions. [2020-10-15 03:00:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-15 03:00:55,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:55,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:00:55,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:00:55,440 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:00:55,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:55,440 INFO L82 PathProgramCache]: Analyzing trace with hash -148775654, now seen corresponding path program 1 times [2020-10-15 03:00:55,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:55,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585357996] [2020-10-15 03:00:55,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:55,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:00,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:00,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-15 03:01:00,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:01:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:01:00,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:00,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:01:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 03:01:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 03:01:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:00,770 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:01:00,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:00,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:00,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:00,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:00,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 03:01:00,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:00,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:00,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:00,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:01:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:00,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585357996] [2020-10-15 03:01:00,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:00,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:00,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183455249] [2020-10-15 03:01:00,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:00,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:00,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:00,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:00,845 INFO L87 Difference]: Start difference. First operand 20819 states and 29187 transitions. Second operand 5 states. [2020-10-15 03:01:03,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:03,160 INFO L93 Difference]: Finished difference Result 34213 states and 47980 transitions. [2020-10-15 03:01:03,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:01:03,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2020-10-15 03:01:03,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:03,235 INFO L225 Difference]: With dead ends: 34213 [2020-10-15 03:01:03,235 INFO L226 Difference]: Without dead ends: 13782 [2020-10-15 03:01:03,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:01:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13782 states. [2020-10-15 03:01:03,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13782 to 13781. [2020-10-15 03:01:03,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13781 states. [2020-10-15 03:01:03,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13781 states to 13781 states and 19237 transitions. [2020-10-15 03:01:03,920 INFO L78 Accepts]: Start accepts. Automaton has 13781 states and 19237 transitions. Word has length 150 [2020-10-15 03:01:03,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:03,920 INFO L479 AbstractCegarLoop]: Abstraction has 13781 states and 19237 transitions. [2020-10-15 03:01:03,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:03,920 INFO L276 IsEmpty]: Start isEmpty. Operand 13781 states and 19237 transitions. [2020-10-15 03:01:03,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-15 03:01:03,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:03,931 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:01:03,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:01:03,932 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:01:03,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:03,932 INFO L82 PathProgramCache]: Analyzing trace with hash 518469347, now seen corresponding path program 1 times [2020-10-15 03:01:03,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:03,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287529907] [2020-10-15 03:01:03,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:03,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:03,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:04,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:04,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:04,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:04,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:04,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:04,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:04,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:08,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:08,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:08,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-15 03:01:08,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:01:08,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 03:01:08,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:08,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:08,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:01:08,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:01:08,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 03:01:08,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:09,248 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:01:09,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:09,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:09,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:09,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:09,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:09,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:01:09,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:09,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:09,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:01:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:09,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287529907] [2020-10-15 03:01:09,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:09,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:09,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629364004] [2020-10-15 03:01:09,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:09,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:09,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:09,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:09,312 INFO L87 Difference]: Start difference. First operand 13781 states and 19237 transitions. Second operand 5 states. [2020-10-15 03:01:09,564 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-15 03:01:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:12,971 INFO L93 Difference]: Finished difference Result 24298 states and 33967 transitions. [2020-10-15 03:01:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:01:12,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-15 03:01:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:12,995 INFO L225 Difference]: With dead ends: 24298 [2020-10-15 03:01:12,995 INFO L226 Difference]: Without dead ends: 13803 [2020-10-15 03:01:13,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:01:13,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13803 states. [2020-10-15 03:01:13,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13803 to 13781. [2020-10-15 03:01:13,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13781 states. [2020-10-15 03:01:13,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13781 states to 13781 states and 19155 transitions. [2020-10-15 03:01:13,844 INFO L78 Accepts]: Start accepts. Automaton has 13781 states and 19155 transitions. Word has length 157 [2020-10-15 03:01:13,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:13,844 INFO L479 AbstractCegarLoop]: Abstraction has 13781 states and 19155 transitions. [2020-10-15 03:01:13,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:13,844 INFO L276 IsEmpty]: Start isEmpty. Operand 13781 states and 19155 transitions. [2020-10-15 03:01:13,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-15 03:01:13,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:13,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:01:13,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:01:13,856 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:01:13,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:13,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1538237964, now seen corresponding path program 1 times [2020-10-15 03:01:13,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:13,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540823726] [2020-10-15 03:01:13,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:13,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:13,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:13,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:14,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:14,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:16,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:16,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:16,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:17,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:18,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:18,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-15 03:01:18,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:01:18,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:01:18,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:18,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:18,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:01:18,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:01:18,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-15 03:01:18,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:19,173 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:01:19,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:19,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:19,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:19,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:19,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:19,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:01:19,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:19,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:19,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:19,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540823726] [2020-10-15 03:01:19,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:19,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:19,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732114289] [2020-10-15 03:01:19,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:19,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:19,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:19,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:19,247 INFO L87 Difference]: Start difference. First operand 13781 states and 19155 transitions. Second operand 5 states. [2020-10-15 03:01:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:22,625 INFO L93 Difference]: Finished difference Result 36899 states and 51119 transitions. [2020-10-15 03:01:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:01:22,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-10-15 03:01:22,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:22,660 INFO L225 Difference]: With dead ends: 36899 [2020-10-15 03:01:22,661 INFO L226 Difference]: Without dead ends: 23655 [2020-10-15 03:01:22,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:01:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23655 states. [2020-10-15 03:01:23,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23655 to 23615. [2020-10-15 03:01:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23615 states. [2020-10-15 03:01:23,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23615 states to 23615 states and 32233 transitions. [2020-10-15 03:01:23,770 INFO L78 Accepts]: Start accepts. Automaton has 23615 states and 32233 transitions. Word has length 158 [2020-10-15 03:01:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:23,771 INFO L479 AbstractCegarLoop]: Abstraction has 23615 states and 32233 transitions. [2020-10-15 03:01:23,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:23,771 INFO L276 IsEmpty]: Start isEmpty. Operand 23615 states and 32233 transitions. [2020-10-15 03:01:23,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-15 03:01:23,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:23,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:01:23,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:01:23,791 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:01:23,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:23,791 INFO L82 PathProgramCache]: Analyzing trace with hash 2123667572, now seen corresponding path program 1 times [2020-10-15 03:01:23,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:23,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864353514] [2020-10-15 03:01:23,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:23,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:23,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:24,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:24,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:24,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:24,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:28,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:28,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-15 03:01:28,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:01:28,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-15 03:01:28,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:28,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:01:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-15 03:01:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-15 03:01:28,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:29,207 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:01:29,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:29,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:29,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:29,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:29,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:01:29,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:29,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:29,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:29,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:29,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864353514] [2020-10-15 03:01:29,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:29,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:29,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798554238] [2020-10-15 03:01:29,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:29,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:29,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:29,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:29,254 INFO L87 Difference]: Start difference. First operand 23615 states and 32233 transitions. Second operand 5 states. [2020-10-15 03:01:29,509 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 03:01:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:34,427 INFO L93 Difference]: Finished difference Result 64229 states and 91979 transitions. [2020-10-15 03:01:34,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 03:01:34,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-10-15 03:01:34,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:34,491 INFO L225 Difference]: With dead ends: 64229 [2020-10-15 03:01:34,492 INFO L226 Difference]: Without dead ends: 54213 [2020-10-15 03:01:34,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:01:34,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54213 states. [2020-10-15 03:01:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54213 to 54089. [2020-10-15 03:01:38,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54089 states. [2020-10-15 03:01:38,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54089 states to 54089 states and 75844 transitions. [2020-10-15 03:01:38,447 INFO L78 Accepts]: Start accepts. Automaton has 54089 states and 75844 transitions. Word has length 159 [2020-10-15 03:01:38,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:38,448 INFO L479 AbstractCegarLoop]: Abstraction has 54089 states and 75844 transitions. [2020-10-15 03:01:38,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:38,448 INFO L276 IsEmpty]: Start isEmpty. Operand 54089 states and 75844 transitions. [2020-10-15 03:01:38,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-15 03:01:38,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:38,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:01:38,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:01:38,479 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:01:38,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:38,480 INFO L82 PathProgramCache]: Analyzing trace with hash 2124006196, now seen corresponding path program 1 times [2020-10-15 03:01:38,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:38,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045481867] [2020-10-15 03:01:38,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:38,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:38,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:38,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:38,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:38,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:43,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:43,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-15 03:01:43,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:01:43,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:01:43,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:43,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:43,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:01:43,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 03:01:43,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 03:01:43,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:01:43,952 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:01:43,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:43,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:43,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:43,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:43,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:43,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:01:43,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:43,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:43,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:43,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:43,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:43,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:44,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:44,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045481867] [2020-10-15 03:01:44,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:44,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:44,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171011733] [2020-10-15 03:01:44,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:44,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:44,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:44,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:44,022 INFO L87 Difference]: Start difference. First operand 54089 states and 75844 transitions. Second operand 5 states. [2020-10-15 03:01:48,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:48,021 INFO L93 Difference]: Finished difference Result 102163 states and 143441 transitions. [2020-10-15 03:01:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:01:48,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-10-15 03:01:48,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:48,092 INFO L225 Difference]: With dead ends: 102163 [2020-10-15 03:01:48,092 INFO L226 Difference]: Without dead ends: 48580 [2020-10-15 03:01:48,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:01:48,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48580 states. [2020-10-15 03:01:50,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48580 to 48580. [2020-10-15 03:01:50,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48580 states. [2020-10-15 03:01:51,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48580 states to 48580 states and 68151 transitions. [2020-10-15 03:01:51,011 INFO L78 Accepts]: Start accepts. Automaton has 48580 states and 68151 transitions. Word has length 159 [2020-10-15 03:01:51,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:51,011 INFO L479 AbstractCegarLoop]: Abstraction has 48580 states and 68151 transitions. [2020-10-15 03:01:51,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:51,011 INFO L276 IsEmpty]: Start isEmpty. Operand 48580 states and 68151 transitions. [2020-10-15 03:01:51,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-15 03:01:51,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:51,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:01:51,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:01:51,038 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:01:51,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:51,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1970642994, now seen corresponding path program 1 times [2020-10-15 03:01:51,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:51,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461944389] [2020-10-15 03:01:51,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:51,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:51,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:51,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:51,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:51,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:51,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:51,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:53,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:56,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:56,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-15 03:01:56,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:01:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 03:01:56,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:56,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:01:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-15 03:01:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:01:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:01:56,380 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:01:56,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:56,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:56,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:56,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:56,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:56,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:01:56,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:56,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:56,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:56,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:56,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:01:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:56,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461944389] [2020-10-15 03:01:56,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:56,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:01:56,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284048462] [2020-10-15 03:01:56,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:01:56,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:56,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:01:56,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:01:56,436 INFO L87 Difference]: Start difference. First operand 48580 states and 68151 transitions. Second operand 4 states. [2020-10-15 03:01:56,672 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 03:02:02,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:02:02,897 INFO L93 Difference]: Finished difference Result 134132 states and 190167 transitions. [2020-10-15 03:02:02,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:02:02,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2020-10-15 03:02:02,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:02:03,042 INFO L225 Difference]: With dead ends: 134132 [2020-10-15 03:02:03,042 INFO L226 Difference]: Without dead ends: 92535 [2020-10-15 03:02:03,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:02:03,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92535 states. [2020-10-15 03:02:09,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92535 to 92458. [2020-10-15 03:02:09,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92458 states. [2020-10-15 03:02:09,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92458 states to 92458 states and 129368 transitions. [2020-10-15 03:02:09,887 INFO L78 Accepts]: Start accepts. Automaton has 92458 states and 129368 transitions. Word has length 165 [2020-10-15 03:02:09,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:02:09,888 INFO L479 AbstractCegarLoop]: Abstraction has 92458 states and 129368 transitions. [2020-10-15 03:02:09,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:02:09,888 INFO L276 IsEmpty]: Start isEmpty. Operand 92458 states and 129368 transitions. [2020-10-15 03:02:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-15 03:02:09,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:02:09,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:02:09,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:02:09,979 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:02:09,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:02:09,980 INFO L82 PathProgramCache]: Analyzing trace with hash -172505773, now seen corresponding path program 1 times [2020-10-15 03:02:09,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:02:09,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573346872] [2020-10-15 03:02:09,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:02:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:10,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:10,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:10,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:10,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:10,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:10,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:14,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:14,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:15,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:15,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-15 03:02:15,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:02:15,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:02:15,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:15,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:02:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-15 03:02:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 03:02:15,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:02:15,244 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:02:15,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:02:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:15,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:15,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:15,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:02:15,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:02:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:02:15,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:15,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:02:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:02:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:02:15,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:02:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:02:15,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573346872] [2020-10-15 03:02:15,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:02:15,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:02:15,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292731794] [2020-10-15 03:02:15,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:02:15,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:02:15,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:02:15,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:02:15,282 INFO L87 Difference]: Start difference. First operand 92458 states and 129368 transitions. Second operand 4 states. [2020-10-15 03:02:22,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:02:22,806 INFO L93 Difference]: Finished difference Result 183508 states and 264228 transitions. [2020-10-15 03:02:22,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:02:22,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2020-10-15 03:02:22,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:02:22,982 INFO L225 Difference]: With dead ends: 183508 [2020-10-15 03:02:22,982 INFO L226 Difference]: Without dead ends: 115974 [2020-10-15 03:02:23,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:02:23,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115974 states. [2020-10-15 03:02:31,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115974 to 115897. [2020-10-15 03:02:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115897 states. [2020-10-15 03:02:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115897 states to 115897 states and 164944 transitions. [2020-10-15 03:02:31,559 INFO L78 Accepts]: Start accepts. Automaton has 115897 states and 164944 transitions. Word has length 165 [2020-10-15 03:02:31,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:02:31,559 INFO L479 AbstractCegarLoop]: Abstraction has 115897 states and 164944 transitions. [2020-10-15 03:02:31,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:02:31,559 INFO L276 IsEmpty]: Start isEmpty. Operand 115897 states and 164944 transitions. [2020-10-15 03:02:31,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-15 03:02:31,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:02:31,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:02:31,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:02:31,599 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:02:31,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:02:31,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1000364644, now seen corresponding path program 1 times [2020-10-15 03:02:31,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:02:31,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621082015] [2020-10-15 03:02:31,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:02:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:31,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:31,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:31,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:31,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:31,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:34,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:34,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:34,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:34,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:34,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:35,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:35,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:35,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:36,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:36,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-15 03:02:36,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:02:36,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:02:36,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:36,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:02:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:02:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-15 03:02:36,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:02:36,964 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:02:36,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:02:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:36,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:36,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:36,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:02:36,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:02:36,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:02:36,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:36,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:36,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:02:36,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:02:36,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:02:36,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:02:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:02:37,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621082015] [2020-10-15 03:02:37,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:02:37,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:02:37,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578439035] [2020-10-15 03:02:37,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:02:37,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:02:37,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:02:37,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:02:37,060 INFO L87 Difference]: Start difference. First operand 115897 states and 164944 transitions. Second operand 6 states. [2020-10-15 03:02:37,306 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-15 03:02:45,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:02:45,735 INFO L93 Difference]: Finished difference Result 176456 states and 259853 transitions. [2020-10-15 03:02:45,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:02:45,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-10-15 03:02:45,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:02:45,890 INFO L225 Difference]: With dead ends: 176456 [2020-10-15 03:02:45,890 INFO L226 Difference]: Without dead ends: 110465 [2020-10-15 03:02:45,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:02:46,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110465 states. [2020-10-15 03:02:51,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110465 to 110381. [2020-10-15 03:02:51,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110381 states. [2020-10-15 03:02:52,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110381 states to 110381 states and 156406 transitions. [2020-10-15 03:02:52,108 INFO L78 Accepts]: Start accepts. Automaton has 110381 states and 156406 transitions. Word has length 165 [2020-10-15 03:02:52,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:02:52,109 INFO L479 AbstractCegarLoop]: Abstraction has 110381 states and 156406 transitions. [2020-10-15 03:02:52,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:02:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 110381 states and 156406 transitions. [2020-10-15 03:02:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-15 03:02:52,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:02:52,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:02:52,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:02:52,145 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:02:52,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:02:52,145 INFO L82 PathProgramCache]: Analyzing trace with hash -2115396808, now seen corresponding path program 1 times [2020-10-15 03:02:52,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:02:52,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894075282] [2020-10-15 03:02:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:02:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:54,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:54,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:55,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:55,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:55,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:57,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:57,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-15 03:02:57,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:02:57,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:02:57,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:57,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 03:02:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-15 03:02:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-15 03:02:57,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:02:57,728 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 03:02:57,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:02:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:57,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:57,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:57,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:02:57,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:02:57,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:02:57,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:57,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:02:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:02:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:02:57,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:02:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:02:57,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894075282] [2020-10-15 03:02:57,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:02:57,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 03:02:57,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676101101] [2020-10-15 03:02:57,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 03:02:57,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:02:57,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 03:02:57,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:02:57,785 INFO L87 Difference]: Start difference. First operand 110381 states and 156406 transitions. Second operand 12 states. [2020-10-15 03:02:58,395 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 201 [2020-10-15 03:03:17,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:03:17,814 INFO L93 Difference]: Finished difference Result 271865 states and 398784 transitions. [2020-10-15 03:03:17,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 03:03:17,815 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 165 [2020-10-15 03:03:17,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:03:18,243 INFO L225 Difference]: With dead ends: 271865 [2020-10-15 03:03:18,244 INFO L226 Difference]: Without dead ends: 221218 [2020-10-15 03:03:18,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2020-10-15 03:03:18,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221218 states.