/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:42:41,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:42:41,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:42:41,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:42:41,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:42:41,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:42:41,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:42:41,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:42:41,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:42:41,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:42:41,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:42:41,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:42:41,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:42:41,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:42:41,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:42:41,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:42:41,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:42:41,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:42:41,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:42:41,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:42:41,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:42:41,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:42:41,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:42:41,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:42:41,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:42:41,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:42:41,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:42:41,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:42:41,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:42:41,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:42:41,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:42:41,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:42:41,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:42:41,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:42:41,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:42:41,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:42:41,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:42:41,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:42:41,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:42:41,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:42:41,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:42:41,747 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 [2020-10-14 08:42:41,791 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:42:41,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:42:41,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:42:41,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:42:41,795 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:42:41,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:42:41,795 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:42:41,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:42:41,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:42:41,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:42:41,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:42:41,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:42:41,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:42:41,798 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:42:41,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:42:41,798 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:42:41,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:42:41,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:42:41,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:42:41,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:42:41,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:42:41,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:42:41,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:42:41,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:42:41,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:42:41,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:42:41,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:42:41,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:42:41,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:42:41,801 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:42:42,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:42:42,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:42:42,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:42:42,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:42:42,141 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:42:42,142 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:42:42,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfcb6b2b1/df6f34b89dfa4573a33bedb34dcb7e04/FLAG63b0bc530 [2020-10-14 08:42:42,815 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:42:42,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:42:42,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfcb6b2b1/df6f34b89dfa4573a33bedb34dcb7e04/FLAG63b0bc530 [2020-10-14 08:42:43,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfcb6b2b1/df6f34b89dfa4573a33bedb34dcb7e04 [2020-10-14 08:42:43,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:42:43,072 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:42:43,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:42:43,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:42:43,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:42:43,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:42:43" (1/1) ... [2020-10-14 08:42:43,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8831ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:43, skipping insertion in model container [2020-10-14 08:42:43,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:42:43" (1/1) ... [2020-10-14 08:42:43,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:42:43,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:42:43,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:42:43,891 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:42:44,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:42:44,371 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:42:44,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:44 WrapperNode [2020-10-14 08:42:44,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:42:44,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:42:44,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:42:44,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:42:44,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:44" (1/1) ... [2020-10-14 08:42:44,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:44" (1/1) ... [2020-10-14 08:42:44,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:44" (1/1) ... [2020-10-14 08:42:44,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:44" (1/1) ... [2020-10-14 08:42:44,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:44" (1/1) ... [2020-10-14 08:42:44,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:44" (1/1) ... [2020-10-14 08:42:44,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:44" (1/1) ... [2020-10-14 08:42:44,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:42:44,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:42:44,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:42:44,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:42:44,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:44" (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 [2020-10-14 08:42:44,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:42:44,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:42:44,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:42:44,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:42:44,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:42:44,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:42:44,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:42:44,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:42:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:42:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:42:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:42:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:42:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:42:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:42:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:42:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:42:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:42:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:42:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:42:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:42:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:42:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:42:46,242 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:42:46,242 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:42:46,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:42:46 BoogieIcfgContainer [2020-10-14 08:42:46,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:42:46,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:42:46,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:42:46,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:42:46,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:42:43" (1/3) ... [2020-10-14 08:42:46,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26fdc9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:42:46, skipping insertion in model container [2020-10-14 08:42:46,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:42:44" (2/3) ... [2020-10-14 08:42:46,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26fdc9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:42:46, skipping insertion in model container [2020-10-14 08:42:46,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:42:46" (3/3) ... [2020-10-14 08:42:46,258 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:42:46,269 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:42:46,284 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-14 08:42:46,299 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-14 08:42:46,335 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:42:46,335 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:42:46,336 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:42:46,336 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:42:46,336 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:42:46,336 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:42:46,336 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:42:46,336 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:42:46,364 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-14 08:42:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 08:42:46,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:42:46,382 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] [2020-10-14 08:42:46,383 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:42:46,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:42:46,390 INFO L82 PathProgramCache]: Analyzing trace with hash -724467118, now seen corresponding path program 1 times [2020-10-14 08:42:46,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:42:46,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947113525] [2020-10-14 08:42:46,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:42:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:46,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:47,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:47,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:47,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:47,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:48,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:48,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:48,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:50,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:51,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:51,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 08:42:51,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:42:51,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 08:42:51,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:51,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:42:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:42:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 08:42:51,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 08:42:52,289 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:42:52,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:42:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:52,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:52,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:42:52,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:42:52,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:42:52,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 08:42:52,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:42:52,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:42:52,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:42:52,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:42:52,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:42:52,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:42:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:42:52,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947113525] [2020-10-14 08:42:52,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:42:52,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:42:52,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987584558] [2020-10-14 08:42:52,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:42:52,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:42:52,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:42:52,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:42:52,389 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 6 states. [2020-10-14 08:42:52,753 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-14 08:42:55,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:42:55,097 INFO L93 Difference]: Finished difference Result 577 states and 980 transitions. [2020-10-14 08:42:55,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:42:55,099 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-10-14 08:42:55,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:42:55,116 INFO L225 Difference]: With dead ends: 577 [2020-10-14 08:42:55,116 INFO L226 Difference]: Without dead ends: 318 [2020-10-14 08:42:55,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:42:55,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-14 08:42:55,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2020-10-14 08:42:55,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-14 08:42:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 392 transitions. [2020-10-14 08:42:55,202 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 392 transitions. Word has length 62 [2020-10-14 08:42:55,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:42:55,203 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 392 transitions. [2020-10-14 08:42:55,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:42:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 392 transitions. [2020-10-14 08:42:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 08:42:55,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:42:55,207 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] [2020-10-14 08:42:55,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:42:55,208 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:42:55,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:42:55,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1097945019, now seen corresponding path program 1 times [2020-10-14 08:42:55,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:42:55,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733725693] [2020-10-14 08:42:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:42:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:42:55,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:55,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:55,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:55,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:55,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:55,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:56,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:56,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:56,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:57,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:58,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:42:58,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:00,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:00,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 08:43:00,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:43:00,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:43:00,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:00,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:00,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:43:00,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:43:00,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 08:43:00,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:43:00,870 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:43:00,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:00,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:00,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:00,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:00,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:00,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 08:43:00,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:00,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:43:00,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:00,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:43:00,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:43:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:43:00,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733725693] [2020-10-14 08:43:00,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:00,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:43:00,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962524480] [2020-10-14 08:43:00,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:43:00,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:00,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:43:00,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:43:00,981 INFO L87 Difference]: Start difference. First operand 318 states and 392 transitions. Second operand 7 states. [2020-10-14 08:43:01,417 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-14 08:43:02,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:02,922 INFO L93 Difference]: Finished difference Result 557 states and 700 transitions. [2020-10-14 08:43:02,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:43:02,923 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-14 08:43:02,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:02,928 INFO L225 Difference]: With dead ends: 557 [2020-10-14 08:43:02,928 INFO L226 Difference]: Without dead ends: 424 [2020-10-14 08:43:02,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:43:02,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-14 08:43:02,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 318. [2020-10-14 08:43:02,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-14 08:43:02,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 391 transitions. [2020-10-14 08:43:02,995 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 391 transitions. Word has length 63 [2020-10-14 08:43:02,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:02,996 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 391 transitions. [2020-10-14 08:43:02,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:43:02,996 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 391 transitions. [2020-10-14 08:43:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 08:43:03,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:03,003 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] [2020-10-14 08:43:03,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:43:03,007 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:03,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:03,007 INFO L82 PathProgramCache]: Analyzing trace with hash -757129221, now seen corresponding path program 1 times [2020-10-14 08:43:03,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:03,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886074409] [2020-10-14 08:43:03,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:03,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:03,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:03,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:03,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:03,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:03,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:03,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:04,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:04,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:04,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:04,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:05,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:07,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:08,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:08,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 08:43:08,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:43:08,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:43:08,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:08,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:08,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:43:08,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:43:08,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:43:08,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:43:08,372 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:43:08,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:08,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:08,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:08,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:08,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:08,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:43:08,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:08,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:43:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:43:08,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:43:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:43:08,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886074409] [2020-10-14 08:43:08,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:08,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:43:08,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145908068] [2020-10-14 08:43:08,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:43:08,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:08,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:43:08,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:43:08,414 INFO L87 Difference]: Start difference. First operand 318 states and 391 transitions. Second operand 6 states. [2020-10-14 08:43:08,689 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-14 08:43:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:10,929 INFO L93 Difference]: Finished difference Result 843 states and 1154 transitions. [2020-10-14 08:43:10,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:43:10,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-14 08:43:10,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:10,937 INFO L225 Difference]: With dead ends: 843 [2020-10-14 08:43:10,937 INFO L226 Difference]: Without dead ends: 726 [2020-10-14 08:43:10,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2020-10-14 08:43:10,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 519. [2020-10-14 08:43:10,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2020-10-14 08:43:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 700 transitions. [2020-10-14 08:43:10,974 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 700 transitions. Word has length 63 [2020-10-14 08:43:10,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:10,975 INFO L479 AbstractCegarLoop]: Abstraction has 519 states and 700 transitions. [2020-10-14 08:43:10,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:43:10,975 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 700 transitions. [2020-10-14 08:43:10,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:43:10,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:10,977 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] [2020-10-14 08:43:10,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:43:10,977 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:10,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:10,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1580420600, now seen corresponding path program 1 times [2020-10-14 08:43:10,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:10,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923196465] [2020-10-14 08:43:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:11,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:11,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:11,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:11,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:11,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:12,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:12,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:12,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:13,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:14,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:14,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:15,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:15,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:15,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:16,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:16,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:43:16,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:43:16,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:43:16,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:16,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:16,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:43:16,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:43:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 08:43:16,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:43:16,286 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:43:16,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:16,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:16,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:16,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:16,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:16,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:43:16,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:16,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:43:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:43:16,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:43:16,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:43:16,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923196465] [2020-10-14 08:43:16,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:16,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:43:16,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067839510] [2020-10-14 08:43:16,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:43:16,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:16,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:43:16,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:43:16,324 INFO L87 Difference]: Start difference. First operand 519 states and 700 transitions. Second operand 6 states. [2020-10-14 08:43:16,591 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-14 08:43:19,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:19,285 INFO L93 Difference]: Finished difference Result 2648 states and 3880 transitions. [2020-10-14 08:43:19,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:43:19,285 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-10-14 08:43:19,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:19,299 INFO L225 Difference]: With dead ends: 2648 [2020-10-14 08:43:19,300 INFO L226 Difference]: Without dead ends: 2415 [2020-10-14 08:43:19,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:43:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2020-10-14 08:43:19,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 1401. [2020-10-14 08:43:19,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1401 states. [2020-10-14 08:43:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 2044 transitions. [2020-10-14 08:43:19,402 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 2044 transitions. Word has length 64 [2020-10-14 08:43:19,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:19,405 INFO L479 AbstractCegarLoop]: Abstraction has 1401 states and 2044 transitions. [2020-10-14 08:43:19,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:43:19,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 2044 transitions. [2020-10-14 08:43:19,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 08:43:19,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:19,408 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] [2020-10-14 08:43:19,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:43:19,409 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:19,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:19,409 INFO L82 PathProgramCache]: Analyzing trace with hash -2024376720, now seen corresponding path program 1 times [2020-10-14 08:43:19,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:19,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383251240] [2020-10-14 08:43:19,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:19,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:19,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:19,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:20,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:20,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:20,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:20,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:20,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:20,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:21,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:22,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:23,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:23,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:23,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:23,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:24,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:24,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 08:43:24,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 08:43:24,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:43:24,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:24,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:24,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:43:24,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:24,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 08:43:24,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:43:24,788 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:43:24,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:24,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:24,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:24,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:24,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:24,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 08:43:24,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:24,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:24,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:24,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:24,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:24,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:43:24,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:43:24,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383251240] [2020-10-14 08:43:24,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:24,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:43:24,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035092623] [2020-10-14 08:43:24,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:43:24,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:24,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:43:24,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:43:24,861 INFO L87 Difference]: Start difference. First operand 1401 states and 2044 transitions. Second operand 6 states. [2020-10-14 08:43:25,262 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-14 08:43:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:26,839 INFO L93 Difference]: Finished difference Result 3680 states and 5446 transitions. [2020-10-14 08:43:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:43:26,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-10-14 08:43:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:26,851 INFO L225 Difference]: With dead ends: 3680 [2020-10-14 08:43:26,851 INFO L226 Difference]: Without dead ends: 2362 [2020-10-14 08:43:26,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:43:26,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-10-14 08:43:27,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2320. [2020-10-14 08:43:27,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2020-10-14 08:43:27,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3434 transitions. [2020-10-14 08:43:27,022 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3434 transitions. Word has length 64 [2020-10-14 08:43:27,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:27,023 INFO L479 AbstractCegarLoop]: Abstraction has 2320 states and 3434 transitions. [2020-10-14 08:43:27,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:43:27,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3434 transitions. [2020-10-14 08:43:27,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:43:27,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:27,025 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] [2020-10-14 08:43:27,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:43:27,025 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:27,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:27,026 INFO L82 PathProgramCache]: Analyzing trace with hash 540788863, now seen corresponding path program 1 times [2020-10-14 08:43:27,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:27,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222718409] [2020-10-14 08:43:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:27,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:27,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:27,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:27,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:28,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:28,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:28,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:28,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:29,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:29,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:29,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:30,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:31,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:31,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:31,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:31,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:32,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:32,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 08:43:32,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:43:32,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:43:32,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:32,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:43:32,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:32,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 08:43:32,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:43:32,398 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:43:32,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:32,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:32,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:32,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:32,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:32,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 08:43:32,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:32,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:32,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:32,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:43:32,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:43:32,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222718409] [2020-10-14 08:43:32,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:32,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:43:32,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235551883] [2020-10-14 08:43:32,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:43:32,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:32,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:43:32,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:43:32,489 INFO L87 Difference]: Start difference. First operand 2320 states and 3434 transitions. Second operand 6 states. [2020-10-14 08:43:32,897 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-14 08:43:34,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:34,300 INFO L93 Difference]: Finished difference Result 3216 states and 4764 transitions. [2020-10-14 08:43:34,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:43:34,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-14 08:43:34,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:34,310 INFO L225 Difference]: With dead ends: 3216 [2020-10-14 08:43:34,310 INFO L226 Difference]: Without dead ends: 1658 [2020-10-14 08:43:34,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:43:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2020-10-14 08:43:34,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1218. [2020-10-14 08:43:34,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2020-10-14 08:43:34,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1769 transitions. [2020-10-14 08:43:34,412 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1769 transitions. Word has length 65 [2020-10-14 08:43:34,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:34,412 INFO L479 AbstractCegarLoop]: Abstraction has 1218 states and 1769 transitions. [2020-10-14 08:43:34,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:43:34,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1769 transitions. [2020-10-14 08:43:34,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 08:43:34,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:34,414 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] [2020-10-14 08:43:34,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:43:34,414 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:34,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:34,415 INFO L82 PathProgramCache]: Analyzing trace with hash -796424796, now seen corresponding path program 1 times [2020-10-14 08:43:34,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:34,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768639308] [2020-10-14 08:43:34,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:34,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:34,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:34,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:34,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:34,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:35,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:35,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:35,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:35,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:35,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:35,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:36,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:36,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:36,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:37,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:38,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:38,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:38,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:39,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:39,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:39,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 08:43:39,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-14 08:43:39,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:43:39,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:39,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:39,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:43:39,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:39,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 08:43:39,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:39,874 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:43:39,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:39,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:39,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:39,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:39,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:39,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 08:43:39,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:39,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:39,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:39,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:39,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:39,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:43:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:43:39,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768639308] [2020-10-14 08:43:39,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:39,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:39,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968863019] [2020-10-14 08:43:39,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:43:39,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:39,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:43:39,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:39,958 INFO L87 Difference]: Start difference. First operand 1218 states and 1769 transitions. Second operand 10 states. [2020-10-14 08:43:40,378 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:43:42,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:42,422 INFO L93 Difference]: Finished difference Result 3742 states and 5605 transitions. [2020-10-14 08:43:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:43:42,423 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2020-10-14 08:43:42,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:42,437 INFO L225 Difference]: With dead ends: 3742 [2020-10-14 08:43:42,438 INFO L226 Difference]: Without dead ends: 2916 [2020-10-14 08:43:42,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:43:42,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2020-10-14 08:43:42,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1218. [2020-10-14 08:43:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2020-10-14 08:43:42,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1768 transitions. [2020-10-14 08:43:42,568 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1768 transitions. Word has length 66 [2020-10-14 08:43:42,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:42,569 INFO L479 AbstractCegarLoop]: Abstraction has 1218 states and 1768 transitions. [2020-10-14 08:43:42,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:43:42,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1768 transitions. [2020-10-14 08:43:42,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 08:43:42,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:42,577 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] [2020-10-14 08:43:42,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:43:42,577 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:42,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:42,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1240380916, now seen corresponding path program 1 times [2020-10-14 08:43:42,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:42,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529430843] [2020-10-14 08:43:42,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:42,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:42,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:42,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:42,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:43,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:44,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:44,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:44,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:45,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:47,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:47,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 08:43:47,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:43:47,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:43:47,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:47,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:43:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:43:47,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:47,952 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:43:47,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:47,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:47,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:47,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:47,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:47,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:43:47,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:47,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:47,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:47,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:47,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:47,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:43:48,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529430843] [2020-10-14 08:43:48,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:48,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:48,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112586574] [2020-10-14 08:43:48,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:43:48,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:48,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:43:48,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:48,024 INFO L87 Difference]: Start difference. First operand 1218 states and 1768 transitions. Second operand 10 states. [2020-10-14 08:43:48,366 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-14 08:43:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:50,593 INFO L93 Difference]: Finished difference Result 3750 states and 5614 transitions. [2020-10-14 08:43:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:43:50,593 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2020-10-14 08:43:50,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:50,607 INFO L225 Difference]: With dead ends: 3750 [2020-10-14 08:43:50,607 INFO L226 Difference]: Without dead ends: 2928 [2020-10-14 08:43:50,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-10-14 08:43:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2020-10-14 08:43:50,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1218. [2020-10-14 08:43:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2020-10-14 08:43:50,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1766 transitions. [2020-10-14 08:43:50,745 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1766 transitions. Word has length 66 [2020-10-14 08:43:50,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:50,745 INFO L479 AbstractCegarLoop]: Abstraction has 1218 states and 1766 transitions. [2020-10-14 08:43:50,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:43:50,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1766 transitions. [2020-10-14 08:43:50,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 08:43:50,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:50,747 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] [2020-10-14 08:43:50,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:43:50,747 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:50,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:50,748 INFO L82 PathProgramCache]: Analyzing trace with hash 688775596, now seen corresponding path program 1 times [2020-10-14 08:43:50,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:50,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609446158] [2020-10-14 08:43:50,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:50,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:50,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:50,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:51,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:51,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:51,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:51,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:52,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:52,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:52,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:53,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:53,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:54,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:55,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:55,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 08:43:55,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:43:55,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:43:55,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:55,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:55,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:43:55,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:43:55,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:43:55,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:56,107 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:43:56,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:43:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:56,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:56,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:43:56,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:43:56,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:43:56,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:43:56,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:43:56,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:43:56,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:43:56,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:43:56,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:43:56,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:43:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:43:56,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609446158] [2020-10-14 08:43:56,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:43:56,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:43:56,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746061042] [2020-10-14 08:43:56,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:43:56,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:43:56,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:43:56,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:43:56,157 INFO L87 Difference]: Start difference. First operand 1218 states and 1766 transitions. Second operand 10 states. [2020-10-14 08:43:56,488 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:43:58,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:43:58,584 INFO L93 Difference]: Finished difference Result 3754 states and 5618 transitions. [2020-10-14 08:43:58,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:43:58,585 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2020-10-14 08:43:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:43:58,596 INFO L225 Difference]: With dead ends: 3754 [2020-10-14 08:43:58,597 INFO L226 Difference]: Without dead ends: 2916 [2020-10-14 08:43:58,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:43:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2020-10-14 08:43:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1218. [2020-10-14 08:43:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2020-10-14 08:43:58,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1764 transitions. [2020-10-14 08:43:58,742 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1764 transitions. Word has length 66 [2020-10-14 08:43:58,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:43:58,743 INFO L479 AbstractCegarLoop]: Abstraction has 1218 states and 1764 transitions. [2020-10-14 08:43:58,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:43:58,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1764 transitions. [2020-10-14 08:43:58,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:43:58,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:43:58,744 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] [2020-10-14 08:43:58,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:43:58,745 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:43:58,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:43:58,746 INFO L82 PathProgramCache]: Analyzing trace with hash -742386510, now seen corresponding path program 1 times [2020-10-14 08:43:58,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:43:58,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510478735] [2020-10-14 08:43:58,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:43:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:43:58,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:58,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:58,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:58,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:43:59,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:00,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:00,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:00,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:01,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:01,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:02,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:02,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:02,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:03,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:03,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:03,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:03,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:03,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:03,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:03,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:03,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:03,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 08:44:03,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 26 [2020-10-14 08:44:03,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:44:03,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:03,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:44:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:44:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 08:44:03,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:04,038 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:04,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:04,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:04,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:04,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:04,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:04,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 08:44:04,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:04,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:44:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:44:04,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:04,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:04,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510478735] [2020-10-14 08:44:04,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:04,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:44:04,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334895141] [2020-10-14 08:44:04,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:44:04,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:04,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:44:04,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:44:04,089 INFO L87 Difference]: Start difference. First operand 1218 states and 1764 transitions. Second operand 6 states. [2020-10-14 08:44:04,363 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-14 08:44:05,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:05,443 INFO L93 Difference]: Finished difference Result 1666 states and 2427 transitions. [2020-10-14 08:44:05,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:44:05,444 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-10-14 08:44:05,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:05,448 INFO L225 Difference]: With dead ends: 1666 [2020-10-14 08:44:05,448 INFO L226 Difference]: Without dead ends: 905 [2020-10-14 08:44:05,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:44:05,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2020-10-14 08:44:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 699. [2020-10-14 08:44:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-14 08:44:05,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 984 transitions. [2020-10-14 08:44:05,527 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 984 transitions. Word has length 67 [2020-10-14 08:44:05,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:05,527 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 984 transitions. [2020-10-14 08:44:05,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:44:05,527 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 984 transitions. [2020-10-14 08:44:05,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:44:05,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:05,528 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] [2020-10-14 08:44:05,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:44:05,529 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:05,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:05,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1210826695, now seen corresponding path program 1 times [2020-10-14 08:44:05,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:05,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779672851] [2020-10-14 08:44:05,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:05,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:05,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:05,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:05,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:06,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:06,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:07,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:07,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:07,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:07,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:08,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:08,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:09,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:09,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:09,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:09,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:10,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:10,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:10,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:10,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:44:10,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-14 08:44:10,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 08:44:10,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:10,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:10,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:44:10,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:44:10,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:44:10,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:10,885 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:10,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:10,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:10,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:10,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:10,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:44:10,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:10,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:44:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:44:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:10,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:10,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779672851] [2020-10-14 08:44:10,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:10,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:10,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164909951] [2020-10-14 08:44:10,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:44:10,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:10,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:44:10,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:10,932 INFO L87 Difference]: Start difference. First operand 699 states and 984 transitions. Second operand 10 states. [2020-10-14 08:44:11,255 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:44:13,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:13,262 INFO L93 Difference]: Finished difference Result 1578 states and 2288 transitions. [2020-10-14 08:44:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:44:13,263 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2020-10-14 08:44:13,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:13,269 INFO L225 Difference]: With dead ends: 1578 [2020-10-14 08:44:13,269 INFO L226 Difference]: Without dead ends: 1573 [2020-10-14 08:44:13,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:44:13,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2020-10-14 08:44:13,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 699. [2020-10-14 08:44:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-14 08:44:13,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 983 transitions. [2020-10-14 08:44:13,365 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 983 transitions. Word has length 68 [2020-10-14 08:44:13,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:13,365 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 983 transitions. [2020-10-14 08:44:13,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:44:13,366 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 983 transitions. [2020-10-14 08:44:13,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:44:13,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:13,367 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] [2020-10-14 08:44:13,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:44:13,367 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:13,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:13,368 INFO L82 PathProgramCache]: Analyzing trace with hash 825778534, now seen corresponding path program 1 times [2020-10-14 08:44:13,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:13,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150673279] [2020-10-14 08:44:13,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:13,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:13,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:14,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:15,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:15,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:16,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:18,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:18,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:44:18,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:44:18,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:44:18,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:18,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:44:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:44:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:44:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:18,731 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:18,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:18,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:18,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:18,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:18,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:18,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:44:18,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:18,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:44:18,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:18,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:44:18,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:18,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150673279] [2020-10-14 08:44:18,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:18,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:18,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779490553] [2020-10-14 08:44:18,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:44:18,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:18,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:44:18,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:18,770 INFO L87 Difference]: Start difference. First operand 699 states and 983 transitions. Second operand 10 states. [2020-10-14 08:44:19,094 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:44:21,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:21,022 INFO L93 Difference]: Finished difference Result 1578 states and 2286 transitions. [2020-10-14 08:44:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:44:21,022 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2020-10-14 08:44:21,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:21,027 INFO L225 Difference]: With dead ends: 1578 [2020-10-14 08:44:21,027 INFO L226 Difference]: Without dead ends: 1561 [2020-10-14 08:44:21,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:44:21,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2020-10-14 08:44:21,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 699. [2020-10-14 08:44:21,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-14 08:44:21,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 982 transitions. [2020-10-14 08:44:21,110 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 982 transitions. Word has length 68 [2020-10-14 08:44:21,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:21,110 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 982 transitions. [2020-10-14 08:44:21,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:44:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 982 transitions. [2020-10-14 08:44:21,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:44:21,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:21,112 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] [2020-10-14 08:44:21,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:44:21,112 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:21,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:21,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1187022572, now seen corresponding path program 1 times [2020-10-14 08:44:21,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:21,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047778384] [2020-10-14 08:44:21,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:21,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:21,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:21,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:21,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:21,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:22,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:22,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:22,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:26,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:26,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:44:26,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:44:26,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:44:26,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:26,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:26,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:44:26,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:26,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 08:44:26,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:26,581 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:26,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:26,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:26,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:26,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:26,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:26,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:44:26,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:26,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:26,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:26,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:26,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:26,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:44:26,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:26,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047778384] [2020-10-14 08:44:26,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:26,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:26,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068532293] [2020-10-14 08:44:26,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:44:26,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:26,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:44:26,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:44:26,629 INFO L87 Difference]: Start difference. First operand 699 states and 982 transitions. Second operand 9 states. [2020-10-14 08:44:26,946 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-14 08:44:28,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:28,449 INFO L93 Difference]: Finished difference Result 1351 states and 1953 transitions. [2020-10-14 08:44:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:44:28,450 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-14 08:44:28,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:28,453 INFO L225 Difference]: With dead ends: 1351 [2020-10-14 08:44:28,454 INFO L226 Difference]: Without dead ends: 939 [2020-10-14 08:44:28,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-10-14 08:44:28,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2020-10-14 08:44:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 689. [2020-10-14 08:44:28,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 08:44:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 967 transitions. [2020-10-14 08:44:28,555 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 967 transitions. Word has length 68 [2020-10-14 08:44:28,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:28,555 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 967 transitions. [2020-10-14 08:44:28,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:44:28,556 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 967 transitions. [2020-10-14 08:44:28,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:44:28,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:28,557 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] [2020-10-14 08:44:28,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:44:28,557 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:28,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:28,558 INFO L82 PathProgramCache]: Analyzing trace with hash 301541682, now seen corresponding path program 1 times [2020-10-14 08:44:28,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:28,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009533107] [2020-10-14 08:44:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:28,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:28,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:28,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:29,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:29,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:29,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:32,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:33,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:44:33,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 08:44:33,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:44:33,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:33,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:33,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:44:33,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:44:33,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:44:33,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:44:33,952 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:33,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:33,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:33,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:33,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:33,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:33,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:44:33,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:33,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:33,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:44:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:44:33,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:34,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:34,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009533107] [2020-10-14 08:44:34,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:34,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:34,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118767753] [2020-10-14 08:44:34,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:44:34,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:34,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:44:34,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:34,016 INFO L87 Difference]: Start difference. First operand 689 states and 967 transitions. Second operand 10 states. [2020-10-14 08:44:34,329 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:44:36,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:36,622 INFO L93 Difference]: Finished difference Result 1971 states and 2890 transitions. [2020-10-14 08:44:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:44:36,623 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2020-10-14 08:44:36,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:36,629 INFO L225 Difference]: With dead ends: 1971 [2020-10-14 08:44:36,630 INFO L226 Difference]: Without dead ends: 1563 [2020-10-14 08:44:36,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:44:36,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2020-10-14 08:44:36,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 689. [2020-10-14 08:44:36,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 08:44:36,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 966 transitions. [2020-10-14 08:44:36,710 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 966 transitions. Word has length 68 [2020-10-14 08:44:36,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:36,711 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 966 transitions. [2020-10-14 08:44:36,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:44:36,711 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 966 transitions. [2020-10-14 08:44:36,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:44:36,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:36,712 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] [2020-10-14 08:44:36,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:44:36,712 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:36,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:36,713 INFO L82 PathProgramCache]: Analyzing trace with hash -972332207, now seen corresponding path program 1 times [2020-10-14 08:44:36,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:36,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777290549] [2020-10-14 08:44:36,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:36,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:36,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:36,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:37,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:37,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:37,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:37,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:38,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:41,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:41,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:44:41,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:44:41,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:44:41,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:41,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:44:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:44:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:44:41,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:42,049 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:42,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:42,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:42,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:42,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:42,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:42,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:44:42,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:42,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:44:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:44:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:42,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:42,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777290549] [2020-10-14 08:44:42,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:42,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:42,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426958667] [2020-10-14 08:44:42,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:44:42,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:42,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:44:42,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:42,089 INFO L87 Difference]: Start difference. First operand 689 states and 966 transitions. Second operand 10 states. [2020-10-14 08:44:42,416 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:44:45,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:45,017 INFO L93 Difference]: Finished difference Result 1568 states and 2270 transitions. [2020-10-14 08:44:45,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:44:45,017 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2020-10-14 08:44:45,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:45,023 INFO L225 Difference]: With dead ends: 1568 [2020-10-14 08:44:45,024 INFO L226 Difference]: Without dead ends: 1563 [2020-10-14 08:44:45,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:44:45,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2020-10-14 08:44:45,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 689. [2020-10-14 08:44:45,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 08:44:45,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 964 transitions. [2020-10-14 08:44:45,113 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 964 transitions. Word has length 68 [2020-10-14 08:44:45,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:45,113 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 964 transitions. [2020-10-14 08:44:45,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:44:45,113 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 964 transitions. [2020-10-14 08:44:45,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:44:45,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:45,114 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] [2020-10-14 08:44:45,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 08:44:45,114 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:45,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:45,115 INFO L82 PathProgramCache]: Analyzing trace with hash -547458457, now seen corresponding path program 1 times [2020-10-14 08:44:45,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:45,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098149152] [2020-10-14 08:44:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:45,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:45,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:45,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:45,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:45,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:45,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:45,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:46,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:46,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:46,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:48,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:48,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:48,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:48,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:48,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:49,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:49,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:50,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:50,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:44:50,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:44:50,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 08:44:50,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:50,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:44:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:44:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 08:44:50,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:50,449 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:50,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:50,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:50,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:50,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:50,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:50,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:44:50,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:50,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:50,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:44:50,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:50,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:44:50,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:50,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098149152] [2020-10-14 08:44:50,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:50,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:50,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780221297] [2020-10-14 08:44:50,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:44:50,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:50,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:44:50,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:44:50,486 INFO L87 Difference]: Start difference. First operand 689 states and 964 transitions. Second operand 9 states. [2020-10-14 08:44:50,766 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-14 08:44:52,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:44:52,194 INFO L93 Difference]: Finished difference Result 1339 states and 1934 transitions. [2020-10-14 08:44:52,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:44:52,194 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-14 08:44:52,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:44:52,197 INFO L225 Difference]: With dead ends: 1339 [2020-10-14 08:44:52,198 INFO L226 Difference]: Without dead ends: 923 [2020-10-14 08:44:52,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:44:52,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-10-14 08:44:52,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 661. [2020-10-14 08:44:52,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2020-10-14 08:44:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 923 transitions. [2020-10-14 08:44:52,271 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 923 transitions. Word has length 68 [2020-10-14 08:44:52,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:44:52,271 INFO L479 AbstractCegarLoop]: Abstraction has 661 states and 923 transitions. [2020-10-14 08:44:52,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:44:52,272 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 923 transitions. [2020-10-14 08:44:52,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:44:52,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:44:52,272 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] [2020-10-14 08:44:52,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 08:44:52,273 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:44:52,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:44:52,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1019294480, now seen corresponding path program 1 times [2020-10-14 08:44:52,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:44:52,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023787520] [2020-10-14 08:44:52,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:44:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:52,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:52,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:52,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:52,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:52,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:53,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:53,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:53,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:53,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:53,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:54,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:57,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:57,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:44:57,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:44:57,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:44:57,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:57,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:44:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:44:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:44:57,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:57,618 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:44:57,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:44:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:44:57,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:44:57,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:44:57,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:44:57,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:44:57,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:44:57,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:44:57,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:44:57,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:44:57,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:44:57,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:44:57,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:44:57,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:44:57,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023787520] [2020-10-14 08:44:57,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:44:57,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:44:57,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140715088] [2020-10-14 08:44:57,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:44:57,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:44:57,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:44:57,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:44:57,657 INFO L87 Difference]: Start difference. First operand 661 states and 923 transitions. Second operand 10 states. [2020-10-14 08:44:57,960 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-14 08:45:00,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:00,185 INFO L93 Difference]: Finished difference Result 2525 states and 3759 transitions. [2020-10-14 08:45:00,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 08:45:00,185 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2020-10-14 08:45:00,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:00,190 INFO L225 Difference]: With dead ends: 2525 [2020-10-14 08:45:00,190 INFO L226 Difference]: Without dead ends: 2089 [2020-10-14 08:45:00,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:45:00,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-10-14 08:45:00,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 661. [2020-10-14 08:45:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2020-10-14 08:45:00,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 922 transitions. [2020-10-14 08:45:00,271 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 922 transitions. Word has length 68 [2020-10-14 08:45:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:00,272 INFO L479 AbstractCegarLoop]: Abstraction has 661 states and 922 transitions. [2020-10-14 08:45:00,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:45:00,272 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 922 transitions. [2020-10-14 08:45:00,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:45:00,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:00,273 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] [2020-10-14 08:45:00,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 08:45:00,273 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:00,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:00,274 INFO L82 PathProgramCache]: Analyzing trace with hash 534421760, now seen corresponding path program 1 times [2020-10-14 08:45:00,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:00,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173905060] [2020-10-14 08:45:00,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:00,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:00,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:01,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:01,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:02,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:05,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:05,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 08:45:05,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:45:05,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:45:05,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:05,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:05,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:45:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:45:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 08:45:05,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:05,607 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:05,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:05,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:05,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:05,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:05,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:05,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:45:05,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:05,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:45:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:05,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:45:05,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:05,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:05,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173905060] [2020-10-14 08:45:05,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:05,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:05,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303124431] [2020-10-14 08:45:05,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:45:05,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:05,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:45:05,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:45:05,644 INFO L87 Difference]: Start difference. First operand 661 states and 922 transitions. Second operand 10 states. [2020-10-14 08:45:05,967 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:45:08,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:08,019 INFO L93 Difference]: Finished difference Result 1965 states and 2875 transitions. [2020-10-14 08:45:08,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:45:08,019 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-10-14 08:45:08,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:08,022 INFO L225 Difference]: With dead ends: 1965 [2020-10-14 08:45:08,022 INFO L226 Difference]: Without dead ends: 1529 [2020-10-14 08:45:08,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:45:08,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2020-10-14 08:45:08,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 661. [2020-10-14 08:45:08,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2020-10-14 08:45:08,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 920 transitions. [2020-10-14 08:45:08,107 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 920 transitions. Word has length 69 [2020-10-14 08:45:08,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:08,108 INFO L479 AbstractCegarLoop]: Abstraction has 661 states and 920 transitions. [2020-10-14 08:45:08,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:45:08,108 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 920 transitions. [2020-10-14 08:45:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:45:08,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:08,109 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] [2020-10-14 08:45:08,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 08:45:08,109 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:08,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:08,110 INFO L82 PathProgramCache]: Analyzing trace with hash 802874435, now seen corresponding path program 1 times [2020-10-14 08:45:08,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:08,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729531995] [2020-10-14 08:45:08,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:08,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:08,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:08,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:08,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:08,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:09,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:09,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:10,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:10,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:10,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:10,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:11,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:11,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:11,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:12,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:13,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:13,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 08:45:13,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 08:45:13,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 08:45:13,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:13,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:13,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:45:13,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:45:13,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:45:13,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:13,452 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:13,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:13,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:13,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:13,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:13,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:13,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:45:13,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:13,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:45:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:45:13,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:13,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:13,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729531995] [2020-10-14 08:45:13,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:13,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:13,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252771129] [2020-10-14 08:45:13,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:45:13,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:13,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:45:13,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:45:13,490 INFO L87 Difference]: Start difference. First operand 661 states and 920 transitions. Second operand 10 states. [2020-10-14 08:45:13,822 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:45:15,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:15,505 INFO L93 Difference]: Finished difference Result 926 states and 1291 transitions. [2020-10-14 08:45:15,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:45:15,506 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-10-14 08:45:15,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:15,507 INFO L225 Difference]: With dead ends: 926 [2020-10-14 08:45:15,507 INFO L226 Difference]: Without dead ends: 919 [2020-10-14 08:45:15,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:45:15,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2020-10-14 08:45:15,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 661. [2020-10-14 08:45:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2020-10-14 08:45:15,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 919 transitions. [2020-10-14 08:45:15,600 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 919 transitions. Word has length 69 [2020-10-14 08:45:15,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:15,600 INFO L479 AbstractCegarLoop]: Abstraction has 661 states and 919 transitions. [2020-10-14 08:45:15,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:45:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 919 transitions. [2020-10-14 08:45:15,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:45:15,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:15,602 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] [2020-10-14 08:45:15,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 08:45:15,602 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:15,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:15,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1330560829, now seen corresponding path program 1 times [2020-10-14 08:45:15,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:15,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679240220] [2020-10-14 08:45:15,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:15,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:15,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:15,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:15,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:16,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:16,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:18,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:18,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:45:18,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:45:18,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3277 [2020-10-14 08:45:18,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:18,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:18,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:45:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 08:45:18,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:19,221 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:19,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:19,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:19,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:19,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:19,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:19,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:45:19,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:19,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:19,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:19,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:19,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:19,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:19,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679240220] [2020-10-14 08:45:19,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:19,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:19,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435245614] [2020-10-14 08:45:19,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:45:19,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:19,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:45:19,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:45:19,254 INFO L87 Difference]: Start difference. First operand 661 states and 919 transitions. Second operand 9 states. [2020-10-14 08:45:19,535 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-14 08:45:20,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:20,996 INFO L93 Difference]: Finished difference Result 907 states and 1273 transitions. [2020-10-14 08:45:20,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:45:20,997 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 08:45:20,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:20,998 INFO L225 Difference]: With dead ends: 907 [2020-10-14 08:45:20,998 INFO L226 Difference]: Without dead ends: 903 [2020-10-14 08:45:20,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:45:21,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-10-14 08:45:21,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 657. [2020-10-14 08:45:21,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-10-14 08:45:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 915 transitions. [2020-10-14 08:45:21,074 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 915 transitions. Word has length 70 [2020-10-14 08:45:21,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:21,074 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 915 transitions. [2020-10-14 08:45:21,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:45:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 915 transitions. [2020-10-14 08:45:21,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:45:21,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:21,076 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] [2020-10-14 08:45:21,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 08:45:21,076 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:21,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:21,076 INFO L82 PathProgramCache]: Analyzing trace with hash 24710571, now seen corresponding path program 1 times [2020-10-14 08:45:21,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:21,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902353766] [2020-10-14 08:45:21,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:21,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:21,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:21,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:21,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:21,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:21,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:21,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:21,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:22,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:22,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:23,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:24,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:24,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:24,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:26,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:26,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:45:26,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:45:26,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:45:26,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:26,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:26,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:45:26,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:26,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:45:26,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:26,437 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:26,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:26,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:26,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:26,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:26,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:26,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:45:26,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:26,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:26,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:26,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:26,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:26,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:26,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902353766] [2020-10-14 08:45:26,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:26,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:26,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214145362] [2020-10-14 08:45:26,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:45:26,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:26,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:45:26,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:45:26,469 INFO L87 Difference]: Start difference. First operand 657 states and 915 transitions. Second operand 9 states. [2020-10-14 08:45:26,767 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-14 08:45:28,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:28,329 INFO L93 Difference]: Finished difference Result 1309 states and 1889 transitions. [2020-10-14 08:45:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:45:28,329 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 08:45:28,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:28,331 INFO L225 Difference]: With dead ends: 1309 [2020-10-14 08:45:28,331 INFO L226 Difference]: Without dead ends: 902 [2020-10-14 08:45:28,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:45:28,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-14 08:45:28,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 656. [2020-10-14 08:45:28,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2020-10-14 08:45:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 913 transitions. [2020-10-14 08:45:28,415 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 913 transitions. Word has length 70 [2020-10-14 08:45:28,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:28,416 INFO L479 AbstractCegarLoop]: Abstraction has 656 states and 913 transitions. [2020-10-14 08:45:28,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:45:28,416 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 913 transitions. [2020-10-14 08:45:28,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:45:28,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:28,417 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] [2020-10-14 08:45:28,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 08:45:28,417 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:28,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:28,417 INFO L82 PathProgramCache]: Analyzing trace with hash -419737396, now seen corresponding path program 1 times [2020-10-14 08:45:28,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:28,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255631794] [2020-10-14 08:45:28,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:28,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:28,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:28,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:28,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:28,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:28,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:29,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:29,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:31,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:31,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:45:31,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:45:31,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2826 [2020-10-14 08:45:31,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:31,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:45:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 08:45:31,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:31,576 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:31,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:31,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:31,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:31,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:31,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:31,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:45:31,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:31,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:31,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:31,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255631794] [2020-10-14 08:45:31,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:31,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:31,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541106751] [2020-10-14 08:45:31,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:45:31,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:31,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:45:31,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:45:31,602 INFO L87 Difference]: Start difference. First operand 656 states and 913 transitions. Second operand 9 states. [2020-10-14 08:45:31,883 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-14 08:45:33,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:33,325 INFO L93 Difference]: Finished difference Result 896 states and 1259 transitions. [2020-10-14 08:45:33,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:45:33,327 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 08:45:33,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:33,329 INFO L225 Difference]: With dead ends: 896 [2020-10-14 08:45:33,329 INFO L226 Difference]: Without dead ends: 886 [2020-10-14 08:45:33,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:45:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-10-14 08:45:33,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 646. [2020-10-14 08:45:33,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2020-10-14 08:45:33,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 902 transitions. [2020-10-14 08:45:33,478 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 902 transitions. Word has length 70 [2020-10-14 08:45:33,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:33,479 INFO L479 AbstractCegarLoop]: Abstraction has 646 states and 902 transitions. [2020-10-14 08:45:33,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:45:33,479 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 902 transitions. [2020-10-14 08:45:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:45:33,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:33,481 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] [2020-10-14 08:45:33,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 08:45:33,481 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:33,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:33,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1039307234, now seen corresponding path program 1 times [2020-10-14 08:45:33,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:33,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969783930] [2020-10-14 08:45:33,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:33,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:33,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:33,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:34,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:34,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:34,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:36,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:36,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:45:36,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:45:36,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2819 [2020-10-14 08:45:36,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:36,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:36,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:45:36,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:36,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 08:45:36,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:36,645 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:36,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:36,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:36,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:36,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:36,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:36,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:45:36,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:36,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:36,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:36,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:36,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:36,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969783930] [2020-10-14 08:45:36,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:36,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:36,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420590292] [2020-10-14 08:45:36,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:45:36,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:36,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:45:36,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:45:36,681 INFO L87 Difference]: Start difference. First operand 646 states and 902 transitions. Second operand 9 states. [2020-10-14 08:45:36,965 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-14 08:45:38,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:38,143 INFO L93 Difference]: Finished difference Result 1290 states and 1868 transitions. [2020-10-14 08:45:38,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:45:38,144 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 08:45:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:38,146 INFO L225 Difference]: With dead ends: 1290 [2020-10-14 08:45:38,146 INFO L226 Difference]: Without dead ends: 864 [2020-10-14 08:45:38,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:45:38,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-10-14 08:45:38,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 620. [2020-10-14 08:45:38,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2020-10-14 08:45:38,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 868 transitions. [2020-10-14 08:45:38,303 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 868 transitions. Word has length 70 [2020-10-14 08:45:38,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:38,304 INFO L479 AbstractCegarLoop]: Abstraction has 620 states and 868 transitions. [2020-10-14 08:45:38,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:45:38,304 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 868 transitions. [2020-10-14 08:45:38,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:45:38,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:38,306 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] [2020-10-14 08:45:38,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 08:45:38,306 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:38,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:38,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1691359868, now seen corresponding path program 1 times [2020-10-14 08:45:38,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:38,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800764834] [2020-10-14 08:45:38,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:38,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:38,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:38,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:38,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:39,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:39,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:39,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:39,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:39,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:40,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:40,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:40,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:42,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:43,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:43,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:43,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:45:43,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:45:43,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:45:43,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:43,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:43,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:45:43,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:43,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:45:43,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:43,688 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:43,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:43,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:43,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:43,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:43,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:43,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:45:43,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:43,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:43,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:43,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:43,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:43,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:43,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:43,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800764834] [2020-10-14 08:45:43,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:43,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:43,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382448187] [2020-10-14 08:45:43,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:45:43,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:43,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:45:43,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:45:43,718 INFO L87 Difference]: Start difference. First operand 620 states and 868 transitions. Second operand 9 states. [2020-10-14 08:45:44,025 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-14 08:45:45,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:45,518 INFO L93 Difference]: Finished difference Result 1882 states and 2775 transitions. [2020-10-14 08:45:45,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:45:45,518 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 08:45:45,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:45,526 INFO L225 Difference]: With dead ends: 1882 [2020-10-14 08:45:45,526 INFO L226 Difference]: Without dead ends: 1469 [2020-10-14 08:45:45,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:45:45,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2020-10-14 08:45:45,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 613. [2020-10-14 08:45:45,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-10-14 08:45:45,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 858 transitions. [2020-10-14 08:45:45,690 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 858 transitions. Word has length 70 [2020-10-14 08:45:45,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:45,691 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 858 transitions. [2020-10-14 08:45:45,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:45:45,691 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 858 transitions. [2020-10-14 08:45:45,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:45:45,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:45,692 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] [2020-10-14 08:45:45,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 08:45:45,692 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:45,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:45,693 INFO L82 PathProgramCache]: Analyzing trace with hash -2047138315, now seen corresponding path program 1 times [2020-10-14 08:45:45,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:45,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686426870] [2020-10-14 08:45:45,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:45,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:45,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:45,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:46,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:46,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:46,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:46,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:47,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:47,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:47,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:48,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:49,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:50,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:50,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:45:50,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 08:45:50,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:45:50,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:50,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:50,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:45:50,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:50,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:45:50,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:51,048 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:51,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:51,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:51,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:51,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:51,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:51,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:45:51,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:51,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:51,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:51,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686426870] [2020-10-14 08:45:51,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:51,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:51,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256141776] [2020-10-14 08:45:51,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:45:51,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:51,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:45:51,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:45:51,075 INFO L87 Difference]: Start difference. First operand 613 states and 858 transitions. Second operand 9 states. [2020-10-14 08:45:51,358 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-14 08:45:52,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:52,897 INFO L93 Difference]: Finished difference Result 1265 states and 1832 transitions. [2020-10-14 08:45:52,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:45:52,899 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 08:45:52,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:52,901 INFO L225 Difference]: With dead ends: 1265 [2020-10-14 08:45:52,902 INFO L226 Difference]: Without dead ends: 857 [2020-10-14 08:45:52,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:45:52,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-10-14 08:45:53,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 605. [2020-10-14 08:45:53,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-10-14 08:45:53,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 847 transitions. [2020-10-14 08:45:53,052 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 847 transitions. Word has length 70 [2020-10-14 08:45:53,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:53,053 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 847 transitions. [2020-10-14 08:45:53,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:45:53,053 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 847 transitions. [2020-10-14 08:45:53,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:45:53,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:53,054 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] [2020-10-14 08:45:53,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 08:45:53,054 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:53,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1803571670, now seen corresponding path program 1 times [2020-10-14 08:45:53,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:53,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951662637] [2020-10-14 08:45:53,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:53,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:53,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:53,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:53,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:53,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:54,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:54,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:54,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:55,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:55,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:45:55,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:45:55,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2903 [2020-10-14 08:45:55,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:55,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:45:56,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:45:56,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 08:45:56,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:45:56,480 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:45:56,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:45:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:56,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:56,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:45:56,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:45:56,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:45:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:45:56,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:45:56,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:45:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:45:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:45:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:45:56,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:45:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:45:56,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951662637] [2020-10-14 08:45:56,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:45:56,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:45:56,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954307670] [2020-10-14 08:45:56,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:45:56,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:45:56,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:45:56,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:45:56,545 INFO L87 Difference]: Start difference. First operand 605 states and 847 transitions. Second operand 9 states. [2020-10-14 08:45:56,988 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-14 08:45:58,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:45:58,033 INFO L93 Difference]: Finished difference Result 605 states and 847 transitions. [2020-10-14 08:45:58,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:45:58,034 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 08:45:58,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:45:58,035 INFO L225 Difference]: With dead ends: 605 [2020-10-14 08:45:58,035 INFO L226 Difference]: Without dead ends: 589 [2020-10-14 08:45:58,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-14 08:45:58,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-10-14 08:45:58,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 589. [2020-10-14 08:45:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-14 08:45:58,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 829 transitions. [2020-10-14 08:45:58,123 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 829 transitions. Word has length 70 [2020-10-14 08:45:58,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:45:58,123 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 829 transitions. [2020-10-14 08:45:58,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:45:58,123 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 829 transitions. [2020-10-14 08:45:58,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:45:58,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:45:58,124 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] [2020-10-14 08:45:58,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 08:45:58,124 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:45:58,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:45:58,125 INFO L82 PathProgramCache]: Analyzing trace with hash -239347844, now seen corresponding path program 1 times [2020-10-14 08:45:58,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:45:58,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377575913] [2020-10-14 08:45:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:45:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:45:58,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:58,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:58,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:58,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:58,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:45:58,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:01,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:01,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:46:01,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:46:01,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2971 [2020-10-14 08:46:01,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:01,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:46:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:46:01,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 08:46:01,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:01,453 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:01,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:01,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:01,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:01,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:01,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:01,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:46:01,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:01,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:01,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:46:01,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:01,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:46:01,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:01,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:01,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377575913] [2020-10-14 08:46:01,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:01,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:01,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814236267] [2020-10-14 08:46:01,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:46:01,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:01,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:46:01,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:46:01,494 INFO L87 Difference]: Start difference. First operand 589 states and 829 transitions. Second operand 10 states. [2020-10-14 08:46:01,821 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:46:03,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:03,477 INFO L93 Difference]: Finished difference Result 844 states and 1191 transitions. [2020-10-14 08:46:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:46:03,478 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-10-14 08:46:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:03,480 INFO L225 Difference]: With dead ends: 844 [2020-10-14 08:46:03,480 INFO L226 Difference]: Without dead ends: 837 [2020-10-14 08:46:03,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:46:03,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-10-14 08:46:03,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 589. [2020-10-14 08:46:03,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-14 08:46:03,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 828 transitions. [2020-10-14 08:46:03,632 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 828 transitions. Word has length 71 [2020-10-14 08:46:03,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:03,632 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 828 transitions. [2020-10-14 08:46:03,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:46:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 828 transitions. [2020-10-14 08:46:03,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:46:03,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:03,634 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] [2020-10-14 08:46:03,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 08:46:03,634 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:03,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:03,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1275398268, now seen corresponding path program 1 times [2020-10-14 08:46:03,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:03,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370221676] [2020-10-14 08:46:03,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:03,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:03,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:03,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:04,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:04,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:04,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:05,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:05,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:46:05,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:46:05,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2171 [2020-10-14 08:46:05,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:05,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:05,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:46:05,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:46:05,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:46:05,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:06,173 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:06,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:06,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:06,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:06,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:06,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:06,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:46:06,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:06,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:46:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:46:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:06,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:06,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370221676] [2020-10-14 08:46:06,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:06,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:06,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230639683] [2020-10-14 08:46:06,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:46:06,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:06,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:46:06,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:46:06,200 INFO L87 Difference]: Start difference. First operand 589 states and 828 transitions. Second operand 9 states. [2020-10-14 08:46:06,493 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-14 08:46:07,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:07,927 INFO L93 Difference]: Finished difference Result 823 states and 1170 transitions. [2020-10-14 08:46:07,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:46:07,928 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:46:07,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:07,929 INFO L225 Difference]: With dead ends: 823 [2020-10-14 08:46:07,929 INFO L226 Difference]: Without dead ends: 817 [2020-10-14 08:46:07,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:46:07,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2020-10-14 08:46:08,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 583. [2020-10-14 08:46:08,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-14 08:46:08,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 819 transitions. [2020-10-14 08:46:08,017 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 819 transitions. Word has length 71 [2020-10-14 08:46:08,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:08,018 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 819 transitions. [2020-10-14 08:46:08,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:46:08,018 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 819 transitions. [2020-10-14 08:46:08,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:46:08,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:08,018 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] [2020-10-14 08:46:08,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 08:46:08,019 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:08,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:08,019 INFO L82 PathProgramCache]: Analyzing trace with hash 147502042, now seen corresponding path program 1 times [2020-10-14 08:46:08,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:08,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452391196] [2020-10-14 08:46:08,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:08,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:08,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:08,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:08,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:08,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:10,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:10,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:46:10,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:46:10,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2630 [2020-10-14 08:46:10,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:10,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:10,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:46:10,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:46:10,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 08:46:10,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:10,987 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:10,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:10,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:11,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:11,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:11,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:11,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:46:11,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:11,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:11,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:46:11,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:11,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:46:11,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:11,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452391196] [2020-10-14 08:46:11,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:11,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:11,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195729255] [2020-10-14 08:46:11,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:46:11,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:11,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:46:11,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:46:11,029 INFO L87 Difference]: Start difference. First operand 583 states and 819 transitions. Second operand 10 states. [2020-10-14 08:46:11,358 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-14 08:46:12,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:12,888 INFO L93 Difference]: Finished difference Result 1438 states and 2110 transitions. [2020-10-14 08:46:12,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:46:12,888 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-10-14 08:46:12,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:12,890 INFO L225 Difference]: With dead ends: 1438 [2020-10-14 08:46:12,890 INFO L226 Difference]: Without dead ends: 989 [2020-10-14 08:46:12,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:46:12,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2020-10-14 08:46:13,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 583. [2020-10-14 08:46:13,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-14 08:46:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 818 transitions. [2020-10-14 08:46:13,070 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 818 transitions. Word has length 71 [2020-10-14 08:46:13,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:13,070 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 818 transitions. [2020-10-14 08:46:13,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:46:13,071 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 818 transitions. [2020-10-14 08:46:13,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:46:13,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:13,072 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] [2020-10-14 08:46:13,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 08:46:13,073 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:13,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:13,073 INFO L82 PathProgramCache]: Analyzing trace with hash -225078902, now seen corresponding path program 1 times [2020-10-14 08:46:13,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:13,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751947772] [2020-10-14 08:46:13,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:13,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:13,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:13,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:13,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:14,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:15,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:15,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 08:46:15,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:46:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2810 [2020-10-14 08:46:15,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:15,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 08:46:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:46:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 08:46:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:16,254 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:16,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:16,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:16,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:16,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:16,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:16,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:46:16,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:16,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:16,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:46:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:46:16,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:16,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:16,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751947772] [2020-10-14 08:46:16,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:16,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:16,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996503982] [2020-10-14 08:46:16,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:46:16,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:16,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:46:16,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:46:16,294 INFO L87 Difference]: Start difference. First operand 583 states and 818 transitions. Second operand 10 states. [2020-10-14 08:46:16,632 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-14 08:46:18,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:18,354 INFO L93 Difference]: Finished difference Result 832 states and 1174 transitions. [2020-10-14 08:46:18,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:46:18,355 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-10-14 08:46:18,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:18,356 INFO L225 Difference]: With dead ends: 832 [2020-10-14 08:46:18,356 INFO L226 Difference]: Without dead ends: 825 [2020-10-14 08:46:18,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:46:18,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-10-14 08:46:18,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 583. [2020-10-14 08:46:18,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-14 08:46:18,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 817 transitions. [2020-10-14 08:46:18,447 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 817 transitions. Word has length 71 [2020-10-14 08:46:18,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:18,447 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 817 transitions. [2020-10-14 08:46:18,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:46:18,448 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 817 transitions. [2020-10-14 08:46:18,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 08:46:18,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:18,448 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] [2020-10-14 08:46:18,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 08:46:18,449 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:18,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:18,449 INFO L82 PathProgramCache]: Analyzing trace with hash -318790111, now seen corresponding path program 1 times [2020-10-14 08:46:18,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:18,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524309483] [2020-10-14 08:46:18,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:18,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:18,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:18,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:18,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:19,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:19,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 08:46:19,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:46:19,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1437 [2020-10-14 08:46:19,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:19,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:19,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:46:19,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:46:19,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:46:19,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:20,325 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:20,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:20,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:20,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:20,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:20,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:46:20,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:20,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:20,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:46:20,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:20,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:46:20,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:20,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:20,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524309483] [2020-10-14 08:46:20,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:20,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:20,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074508379] [2020-10-14 08:46:20,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:46:20,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:20,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:46:20,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:46:20,357 INFO L87 Difference]: Start difference. First operand 583 states and 817 transitions. Second operand 9 states. [2020-10-14 08:46:20,711 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-14 08:46:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:22,149 INFO L93 Difference]: Finished difference Result 809 states and 1151 transitions. [2020-10-14 08:46:22,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:46:22,150 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2020-10-14 08:46:22,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:22,151 INFO L225 Difference]: With dead ends: 809 [2020-10-14 08:46:22,151 INFO L226 Difference]: Without dead ends: 797 [2020-10-14 08:46:22,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-10-14 08:46:22,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-14 08:46:22,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 571. [2020-10-14 08:46:22,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-10-14 08:46:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 803 transitions. [2020-10-14 08:46:22,254 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 803 transitions. Word has length 73 [2020-10-14 08:46:22,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:22,254 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 803 transitions. [2020-10-14 08:46:22,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:46:22,255 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 803 transitions. [2020-10-14 08:46:22,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 08:46:22,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:22,255 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] [2020-10-14 08:46:22,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 08:46:22,256 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:22,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:22,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1786787060, now seen corresponding path program 1 times [2020-10-14 08:46:22,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:22,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246813145] [2020-10-14 08:46:22,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:22,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:22,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:22,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:22,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:23,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:23,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 08:46:23,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:46:23,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1393 [2020-10-14 08:46:23,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:23,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:46:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:46:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 08:46:23,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:24,110 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:24,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:24,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:24,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:24,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:24,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:24,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:46:24,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:24,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:46:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:46:24,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:46:24,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:24,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246813145] [2020-10-14 08:46:24,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:24,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:46:24,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725763691] [2020-10-14 08:46:24,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:46:24,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:24,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:46:24,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:46:24,179 INFO L87 Difference]: Start difference. First operand 571 states and 803 transitions. Second operand 9 states. [2020-10-14 08:46:24,613 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-14 08:46:25,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:46:25,458 INFO L93 Difference]: Finished difference Result 571 states and 803 transitions. [2020-10-14 08:46:25,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:46:25,459 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2020-10-14 08:46:25,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:46:25,460 INFO L225 Difference]: With dead ends: 571 [2020-10-14 08:46:25,460 INFO L226 Difference]: Without dead ends: 553 [2020-10-14 08:46:25,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:46:25,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-10-14 08:46:25,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2020-10-14 08:46:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-10-14 08:46:25,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 783 transitions. [2020-10-14 08:46:25,623 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 783 transitions. Word has length 73 [2020-10-14 08:46:25,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:46:25,624 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 783 transitions. [2020-10-14 08:46:25,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:46:25,624 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 783 transitions. [2020-10-14 08:46:25,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 08:46:25,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:46:25,625 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] [2020-10-14 08:46:25,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 08:46:25,625 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:46:25,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:46:25,626 INFO L82 PathProgramCache]: Analyzing trace with hash 126829793, now seen corresponding path program 1 times [2020-10-14 08:46:25,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:46:25,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738833093] [2020-10-14 08:46:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:46:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:25,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:25,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:25,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:26,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:26,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:26,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 08:46:26,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:46:26,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1287 [2020-10-14 08:46:26,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:26,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:26,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:46:26,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:46:26,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 08:46:26,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:27,356 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 08:46:27,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:46:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:46:27,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:46:27,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:46:27,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:46:27,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:46:27,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:46:27,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:46:27,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:46:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:46:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:46:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:46:27,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:46:27,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:46:27,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738833093] [2020-10-14 08:46:27,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:46:27,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:46:27,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657664486] [2020-10-14 08:46:27,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:46:27,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:46:27,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:46:27,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:46:27,387 INFO L87 Difference]: Start difference. First operand 553 states and 783 transitions. Second operand 8 states. [2020-10-14 08:46:27,674 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 209