/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 04:09:55,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 04:09:55,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 04:09:55,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 04:09:55,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 04:09:55,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 04:09:55,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 04:09:55,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 04:09:55,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 04:09:55,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 04:09:55,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 04:09:55,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 04:09:55,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 04:09:55,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 04:09:55,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 04:09:55,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 04:09:55,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 04:09:55,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 04:09:55,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 04:09:55,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 04:09:55,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 04:09:55,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 04:09:55,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 04:09:55,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 04:09:55,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 04:09:55,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 04:09:55,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 04:09:55,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 04:09:55,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 04:09:55,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 04:09:55,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 04:09:55,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 04:09:55,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 04:09:55,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 04:09:55,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 04:09:55,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 04:09:55,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 04:09:55,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 04:09:55,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 04:09:55,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 04:09:55,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 04:09:55,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 04:09:55,794 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 04:09:55,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 04:09:55,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 04:09:55,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 04:09:55,797 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 04:09:55,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 04:09:55,797 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 04:09:55,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 04:09:55,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 04:09:55,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 04:09:55,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 04:09:55,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 04:09:55,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 04:09:55,800 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 04:09:55,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 04:09:55,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 04:09:55,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 04:09:55,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 04:09:55,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 04:09:55,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 04:09:55,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 04:09:55,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:09:55,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 04:09:55,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 04:09:55,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 04:09:55,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 04:09:55,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 04:09:55,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 04:09:55,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 04:09:55,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 04:09:56,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 04:09:56,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 04:09:56,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 04:09:56,133 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 04:09:56,134 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 04:09:56,135 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 04:09:56,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fa5d4000/0add92e226364bb1b1b106c6038a09ca/FLAG772a200a0 [2020-10-15 04:09:56,886 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 04:09:56,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 04:09:56,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fa5d4000/0add92e226364bb1b1b106c6038a09ca/FLAG772a200a0 [2020-10-15 04:09:57,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fa5d4000/0add92e226364bb1b1b106c6038a09ca [2020-10-15 04:09:57,043 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 04:09:57,045 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 04:09:57,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 04:09:57,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 04:09:57,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 04:09:57,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:09:57" (1/1) ... [2020-10-15 04:09:57,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5243c3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:57, skipping insertion in model container [2020-10-15 04:09:57,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:09:57" (1/1) ... [2020-10-15 04:09:57,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 04:09:57,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 04:09:58,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:09:58,657 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 04:09:59,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:09:59,916 INFO L208 MainTranslator]: Completed translation [2020-10-15 04:09:59,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:59 WrapperNode [2020-10-15 04:09:59,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 04:09:59,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 04:09:59,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 04:09:59,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 04:09:59,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:59" (1/1) ... [2020-10-15 04:09:59,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:59" (1/1) ... [2020-10-15 04:09:59,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:59" (1/1) ... [2020-10-15 04:09:59,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:59" (1/1) ... [2020-10-15 04:10:00,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:59" (1/1) ... [2020-10-15 04:10:00,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:59" (1/1) ... [2020-10-15 04:10:00,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:59" (1/1) ... [2020-10-15 04:10:00,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 04:10:00,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 04:10:00,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 04:10:00,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 04:10:00,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:10:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 04:10:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 04:10:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 04:10:00,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 04:10:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 04:10:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 04:10:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 04:10:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 04:10:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 04:10:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 04:10:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 04:10:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 04:10:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 04:10:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 04:10:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 04:10:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 04:10:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 04:10:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 04:10:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 04:10:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 04:10:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 04:10:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 04:10:03,171 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 04:10:03,172 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 04:10:03,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:10:03 BoogieIcfgContainer [2020-10-15 04:10:03,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 04:10:03,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 04:10:03,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 04:10:03,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 04:10:03,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:09:57" (1/3) ... [2020-10-15 04:10:03,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd21367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:10:03, skipping insertion in model container [2020-10-15 04:10:03,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:09:59" (2/3) ... [2020-10-15 04:10:03,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd21367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:10:03, skipping insertion in model container [2020-10-15 04:10:03,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:10:03" (3/3) ... [2020-10-15 04:10:03,193 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 04:10:03,205 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 04:10:03,215 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-15 04:10:03,231 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-15 04:10:03,261 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 04:10:03,261 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 04:10:03,261 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 04:10:03,262 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 04:10:03,262 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 04:10:03,262 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 04:10:03,262 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 04:10:03,262 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 04:10:03,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states. [2020-10-15 04:10:03,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-15 04:10:03,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:10:03,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:10:03,334 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:10:03,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:10:03,341 INFO L82 PathProgramCache]: Analyzing trace with hash -179235525, now seen corresponding path program 1 times [2020-10-15 04:10:03,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:10:03,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806489236] [2020-10-15 04:10:03,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:10:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:10:04,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:05,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:05,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:06,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:06,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:06,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:07,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:07,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:07,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:07,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:07,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:08,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:08,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:08,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:09,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:10:09,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-15 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 04:10:09,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:10:09,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:10:09,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:10:09,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-15 04:10:09,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-15 04:10:09,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 04:10:10,186 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:10:10,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:10:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:10:10,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:10,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:10:10,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:10:10,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:10:10,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 04:10:10,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:10:10,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:10:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:10:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:10:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:10:10,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:10:10,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:10:10,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806489236] [2020-10-15 04:10:10,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:10:10,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:10:10,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389407798] [2020-10-15 04:10:10,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:10:10,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:10:10,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:10:10,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:10:10,435 INFO L87 Difference]: Start difference. First operand 1016 states. Second operand 4 states. [2020-10-15 04:10:11,000 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-15 04:10:18,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:10:18,393 INFO L93 Difference]: Finished difference Result 1776 states and 3147 transitions. [2020-10-15 04:10:18,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:10:18,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 324 [2020-10-15 04:10:18,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:10:18,429 INFO L225 Difference]: With dead ends: 1776 [2020-10-15 04:10:18,430 INFO L226 Difference]: Without dead ends: 1481 [2020-10-15 04:10:18,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:10:18,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2020-10-15 04:10:18,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1479. [2020-10-15 04:10:18,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1479 states. [2020-10-15 04:10:18,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2266 transitions. [2020-10-15 04:10:18,580 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2266 transitions. Word has length 324 [2020-10-15 04:10:18,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:10:18,587 INFO L479 AbstractCegarLoop]: Abstraction has 1479 states and 2266 transitions. [2020-10-15 04:10:18,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:10:18,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2266 transitions. [2020-10-15 04:10:18,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-15 04:10:18,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:10:18,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:10:18,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 04:10:18,608 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:10:18,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:10:18,609 INFO L82 PathProgramCache]: Analyzing trace with hash -220420006, now seen corresponding path program 1 times [2020-10-15 04:10:18,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:10:18,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89467392] [2020-10-15 04:10:18,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:10:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:10:18,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:19,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:19,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:19,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:20,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:20,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:20,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:20,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:20,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:20,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:21,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:21,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:21,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:21,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:23,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:10:23,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-15 04:10:23,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 04:10:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-15 04:10:23,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:10:23,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:10:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:10:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-15 04:10:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 231 [2020-10-15 04:10:23,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:10:24,711 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:10:24,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:10:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:10:24,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:24,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:10:24,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:10:24,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:10:24,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 04:10:24,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:10:24,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:10:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:10:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:10:24,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:10:24,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 04:10:25,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:10:25,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89467392] [2020-10-15 04:10:25,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:10:25,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:10:25,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014349803] [2020-10-15 04:10:25,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:10:25,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:10:25,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:10:25,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:10:25,117 INFO L87 Difference]: Start difference. First operand 1479 states and 2266 transitions. Second operand 4 states. [2020-10-15 04:10:25,716 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-15 04:10:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:10:32,702 INFO L93 Difference]: Finished difference Result 2852 states and 4423 transitions. [2020-10-15 04:10:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:10:32,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 324 [2020-10-15 04:10:32,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:10:32,722 INFO L225 Difference]: With dead ends: 2852 [2020-10-15 04:10:32,723 INFO L226 Difference]: Without dead ends: 2439 [2020-10-15 04:10:32,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:10:32,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2020-10-15 04:10:32,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2437. [2020-10-15 04:10:32,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2437 states. [2020-10-15 04:10:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3757 transitions. [2020-10-15 04:10:32,811 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3757 transitions. Word has length 324 [2020-10-15 04:10:32,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:10:32,812 INFO L479 AbstractCegarLoop]: Abstraction has 2437 states and 3757 transitions. [2020-10-15 04:10:32,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:10:32,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3757 transitions. [2020-10-15 04:10:32,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-15 04:10:32,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:10:32,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:10:32,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 04:10:32,821 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:10:32,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:10:32,821 INFO L82 PathProgramCache]: Analyzing trace with hash -578874774, now seen corresponding path program 1 times [2020-10-15 04:10:32,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:10:32,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268758816] [2020-10-15 04:10:32,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:10:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:10:33,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:34,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:34,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:34,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:34,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:34,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:34,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:35,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:35,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:35,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:35,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:35,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:35,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:36,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:36,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:38,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:10:38,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-15 04:10:38,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 04:10:38,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 04:10:38,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:10:38,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:10:38,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:10:38,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:10:38,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-15 04:10:38,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:10:38,990 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:10:38,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:10:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:10:39,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:39,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:10:39,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:10:39,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:10:39,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 04:10:39,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:10:39,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:10:39,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:10:39,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:10:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:10:39,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:10:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:10:39,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268758816] [2020-10-15 04:10:39,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:10:39,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:10:39,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169817749] [2020-10-15 04:10:39,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:10:39,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:10:39,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:10:39,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:10:39,244 INFO L87 Difference]: Start difference. First operand 2437 states and 3757 transitions. Second operand 5 states. [2020-10-15 04:10:48,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:10:48,689 INFO L93 Difference]: Finished difference Result 7199 states and 11086 transitions. [2020-10-15 04:10:48,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:10:48,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2020-10-15 04:10:48,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:10:48,715 INFO L225 Difference]: With dead ends: 7199 [2020-10-15 04:10:48,715 INFO L226 Difference]: Without dead ends: 4777 [2020-10-15 04:10:48,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:10:48,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4777 states. [2020-10-15 04:10:48,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4777 to 4653. [2020-10-15 04:10:48,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4653 states. [2020-10-15 04:10:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4653 states to 4653 states and 7163 transitions. [2020-10-15 04:10:48,963 INFO L78 Accepts]: Start accepts. Automaton has 4653 states and 7163 transitions. Word has length 324 [2020-10-15 04:10:48,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:10:48,964 INFO L479 AbstractCegarLoop]: Abstraction has 4653 states and 7163 transitions. [2020-10-15 04:10:48,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:10:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4653 states and 7163 transitions. [2020-10-15 04:10:48,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-15 04:10:48,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:10:48,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:10:48,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 04:10:48,985 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:10:48,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:10:48,986 INFO L82 PathProgramCache]: Analyzing trace with hash 76253758, now seen corresponding path program 1 times [2020-10-15 04:10:48,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:10:48,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321904168] [2020-10-15 04:10:48,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:10:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:10:49,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:49,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:49,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:49,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:49,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:49,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:50,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:50,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:50,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:50,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:50,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:50,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:50,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:54,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:10:54,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-15 04:10:54,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 04:10:54,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-15 04:10:54,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:10:54,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:10:54,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:10:54,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 04:10:54,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-15 04:10:54,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:10:54,775 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:10:54,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:10:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:10:54,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:10:54,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:10:54,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:10:54,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:10:54,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 04:10:54,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:10:54,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:10:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:10:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:10:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:10:54,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:10:54,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:10:54,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321904168] [2020-10-15 04:10:54,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:10:54,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:10:54,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841354639] [2020-10-15 04:10:54,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:10:54,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:10:54,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:10:54,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:10:54,996 INFO L87 Difference]: Start difference. First operand 4653 states and 7163 transitions. Second operand 4 states. [2020-10-15 04:11:05,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:11:05,553 INFO L93 Difference]: Finished difference Result 13649 states and 20959 transitions. [2020-10-15 04:11:05,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:11:05,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 326 [2020-10-15 04:11:05,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:11:05,597 INFO L225 Difference]: With dead ends: 13649 [2020-10-15 04:11:05,597 INFO L226 Difference]: Without dead ends: 9125 [2020-10-15 04:11:05,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:11:05,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9125 states. [2020-10-15 04:11:05,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9125 to 9001. [2020-10-15 04:11:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9001 states. [2020-10-15 04:11:05,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9001 states to 9001 states and 13804 transitions. [2020-10-15 04:11:05,911 INFO L78 Accepts]: Start accepts. Automaton has 9001 states and 13804 transitions. Word has length 326 [2020-10-15 04:11:05,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:11:05,912 INFO L479 AbstractCegarLoop]: Abstraction has 9001 states and 13804 transitions. [2020-10-15 04:11:05,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:11:05,912 INFO L276 IsEmpty]: Start isEmpty. Operand 9001 states and 13804 transitions. [2020-10-15 04:11:05,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-15 04:11:05,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:11:05,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:11:05,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 04:11:05,938 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:11:05,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:11:05,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1985882685, now seen corresponding path program 1 times [2020-10-15 04:11:05,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:11:05,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101966999] [2020-10-15 04:11:05,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:11:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:11:06,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:06,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:06,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:06,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:06,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:06,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:06,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:06,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:06,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:06,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:06,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:07,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:07,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:07,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:07,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:11,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:11:11,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-15 04:11:11,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 04:11:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-15 04:11:11,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:11:11,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:11:11,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:11:11,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:11:11,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-15 04:11:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:11:11,622 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:11:11,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:11:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:11:11,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:11,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:11:11,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:11:11,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:11:11,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 04:11:11,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:11:11,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:11:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:11:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:11:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:11:11,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:11:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:11:11,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101966999] [2020-10-15 04:11:11,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:11:11,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:11:11,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344455471] [2020-10-15 04:11:11,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:11:11,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:11:11,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:11:11,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:11:11,775 INFO L87 Difference]: Start difference. First operand 9001 states and 13804 transitions. Second operand 5 states. [2020-10-15 04:11:20,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:11:20,883 INFO L93 Difference]: Finished difference Result 26515 states and 40584 transitions. [2020-10-15 04:11:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:11:20,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 326 [2020-10-15 04:11:20,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:11:20,944 INFO L225 Difference]: With dead ends: 26515 [2020-10-15 04:11:20,944 INFO L226 Difference]: Without dead ends: 17606 [2020-10-15 04:11:20,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:11:20,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17606 states. [2020-10-15 04:11:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17606 to 17482. [2020-10-15 04:11:21,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17482 states. [2020-10-15 04:11:21,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17482 states to 17482 states and 26659 transitions. [2020-10-15 04:11:21,505 INFO L78 Accepts]: Start accepts. Automaton has 17482 states and 26659 transitions. Word has length 326 [2020-10-15 04:11:21,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:11:21,506 INFO L479 AbstractCegarLoop]: Abstraction has 17482 states and 26659 transitions. [2020-10-15 04:11:21,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:11:21,506 INFO L276 IsEmpty]: Start isEmpty. Operand 17482 states and 26659 transitions. [2020-10-15 04:11:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-15 04:11:21,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:11:21,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:11:21,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 04:11:21,545 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:11:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:11:21,545 INFO L82 PathProgramCache]: Analyzing trace with hash 791425363, now seen corresponding path program 1 times [2020-10-15 04:11:21,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:11:21,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288071039] [2020-10-15 04:11:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:11:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:11:21,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:21,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:21,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:21,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:21,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:21,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:21,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:22,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:22,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:22,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:22,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:22,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:23,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:26,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:11:26,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-15 04:11:26,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 04:11:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 04:11:26,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:11:26,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:11:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:11:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:11:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-15 04:11:26,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:11:27,204 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:11:27,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:11:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:11:27,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:27,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:11:27,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:11:27,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:11:27,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:11:27,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:11:27,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:11:27,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:11:27,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:11:27,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:11:27,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:11:27,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:11:27,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288071039] [2020-10-15 04:11:27,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:11:27,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:11:27,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738530224] [2020-10-15 04:11:27,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:11:27,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:11:27,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:11:27,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:11:27,340 INFO L87 Difference]: Start difference. First operand 17482 states and 26659 transitions. Second operand 5 states. [2020-10-15 04:11:36,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:11:36,676 INFO L93 Difference]: Finished difference Result 35624 states and 54249 transitions. [2020-10-15 04:11:36,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:11:36,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 328 [2020-10-15 04:11:36,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:11:36,717 INFO L225 Difference]: With dead ends: 35624 [2020-10-15 04:11:36,717 INFO L226 Difference]: Without dead ends: 18354 [2020-10-15 04:11:36,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:11:36,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18354 states. [2020-10-15 04:11:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18354 to 17454. [2020-10-15 04:11:37,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17454 states. [2020-10-15 04:11:37,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17454 states to 17454 states and 26595 transitions. [2020-10-15 04:11:37,498 INFO L78 Accepts]: Start accepts. Automaton has 17454 states and 26595 transitions. Word has length 328 [2020-10-15 04:11:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:11:37,498 INFO L479 AbstractCegarLoop]: Abstraction has 17454 states and 26595 transitions. [2020-10-15 04:11:37,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:11:37,499 INFO L276 IsEmpty]: Start isEmpty. Operand 17454 states and 26595 transitions. [2020-10-15 04:11:37,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-15 04:11:37,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:11:37,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:11:37,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 04:11:37,539 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:11:37,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:11:37,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1186250281, now seen corresponding path program 1 times [2020-10-15 04:11:37,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:11:37,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189563090] [2020-10-15 04:11:37,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:11:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:11:37,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:37,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:37,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:37,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:37,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:38,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:38,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:38,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:38,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:38,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:38,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:38,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:39,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:42,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:11:42,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-10-15 04:11:42,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 04:11:42,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-15 04:11:42,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:11:42,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:11:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:11:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:11:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-15 04:11:42,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:11:43,301 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:11:43,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:11:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:11:43,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:43,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:11:43,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:11:43,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:11:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 04:11:43,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:11:43,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:11:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:11:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:11:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:11:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:11:43,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:11:43,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1189563090] [2020-10-15 04:11:43,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:11:43,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:11:43,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934276980] [2020-10-15 04:11:43,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:11:43,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:11:43,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:11:43,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:11:43,432 INFO L87 Difference]: Start difference. First operand 17454 states and 26595 transitions. Second operand 5 states. [2020-10-15 04:11:54,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:11:54,524 INFO L93 Difference]: Finished difference Result 49469 states and 75195 transitions. [2020-10-15 04:11:54,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:11:54,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 330 [2020-10-15 04:11:54,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:11:54,602 INFO L225 Difference]: With dead ends: 49469 [2020-10-15 04:11:54,602 INFO L226 Difference]: Without dead ends: 32271 [2020-10-15 04:11:54,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:11:54,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32271 states. [2020-10-15 04:11:56,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32271 to 32147. [2020-10-15 04:11:56,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32147 states. [2020-10-15 04:11:56,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32147 states to 32147 states and 48589 transitions. [2020-10-15 04:11:56,561 INFO L78 Accepts]: Start accepts. Automaton has 32147 states and 48589 transitions. Word has length 330 [2020-10-15 04:11:56,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:11:56,561 INFO L479 AbstractCegarLoop]: Abstraction has 32147 states and 48589 transitions. [2020-10-15 04:11:56,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:11:56,561 INFO L276 IsEmpty]: Start isEmpty. Operand 32147 states and 48589 transitions. [2020-10-15 04:11:56,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-15 04:11:56,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:11:56,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:11:56,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 04:11:56,609 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:11:56,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:11:56,610 INFO L82 PathProgramCache]: Analyzing trace with hash -2054714286, now seen corresponding path program 1 times [2020-10-15 04:11:56,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:11:56,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259017985] [2020-10-15 04:11:56,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:11:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:11:56,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:56,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:56,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:56,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:56,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:56,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:56,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:56,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:56,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:57,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:57,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:57,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:11:57,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:00,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:00,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:01,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:12:01,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-15 04:12:01,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 04:12:01,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-15 04:12:01,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:12:01,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:12:01,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:12:01,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:12:01,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-15 04:12:01,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:12:02,265 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:12:02,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:12:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:12:02,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:02,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:12:02,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:12:02,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:12:02,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 04:12:02,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:12:02,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:12:02,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:12:02,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:12:02,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:12:02,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:12:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:12:02,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259017985] [2020-10-15 04:12:02,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:12:02,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:12:02,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209220846] [2020-10-15 04:12:02,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:12:02,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:12:02,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:12:02,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:12:02,407 INFO L87 Difference]: Start difference. First operand 32147 states and 48589 transitions. Second operand 5 states. [2020-10-15 04:12:13,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:12:13,804 INFO L93 Difference]: Finished difference Result 94745 states and 142913 transitions. [2020-10-15 04:12:13,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:12:13,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 332 [2020-10-15 04:12:13,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:12:13,925 INFO L225 Difference]: With dead ends: 94745 [2020-10-15 04:12:13,926 INFO L226 Difference]: Without dead ends: 62913 [2020-10-15 04:12:13,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:12:14,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62913 states. [2020-10-15 04:12:16,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62913 to 62789. [2020-10-15 04:12:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62789 states. [2020-10-15 04:12:16,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62789 states to 62789 states and 94235 transitions. [2020-10-15 04:12:16,090 INFO L78 Accepts]: Start accepts. Automaton has 62789 states and 94235 transitions. Word has length 332 [2020-10-15 04:12:16,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:12:16,090 INFO L479 AbstractCegarLoop]: Abstraction has 62789 states and 94235 transitions. [2020-10-15 04:12:16,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:12:16,090 INFO L276 IsEmpty]: Start isEmpty. Operand 62789 states and 94235 transitions. [2020-10-15 04:12:16,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-15 04:12:16,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:12:16,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:12:16,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 04:12:16,141 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:12:16,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:12:16,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1897605072, now seen corresponding path program 1 times [2020-10-15 04:12:16,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:12:16,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931454154] [2020-10-15 04:12:16,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:12:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:12:16,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:16,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:21,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:12:21,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-15 04:12:21,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 04:12:21,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-15 04:12:21,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:12:21,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:12:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:12:21,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:12:21,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-15 04:12:21,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:12:21,982 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:12:21,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:12:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:12:21,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:22,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:12:22,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:12:22,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:12:22,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 04:12:22,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:12:22,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:12:22,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:12:22,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:12:22,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:12:22,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:12:22,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:12:22,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931454154] [2020-10-15 04:12:22,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:12:22,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:12:22,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945126808] [2020-10-15 04:12:22,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:12:22,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:12:22,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:12:22,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:12:22,174 INFO L87 Difference]: Start difference. First operand 62789 states and 94235 transitions. Second operand 5 states. [2020-10-15 04:12:37,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:12:37,364 INFO L93 Difference]: Finished difference Result 184431 states and 276120 transitions. [2020-10-15 04:12:37,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:12:37,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 334 [2020-10-15 04:12:37,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:12:37,543 INFO L225 Difference]: With dead ends: 184431 [2020-10-15 04:12:37,543 INFO L226 Difference]: Without dead ends: 122979 [2020-10-15 04:12:37,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:12:37,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122979 states. [2020-10-15 04:12:42,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122979 to 122873. [2020-10-15 04:12:42,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122873 states. [2020-10-15 04:12:42,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122873 states to 122873 states and 182942 transitions. [2020-10-15 04:12:42,703 INFO L78 Accepts]: Start accepts. Automaton has 122873 states and 182942 transitions. Word has length 334 [2020-10-15 04:12:42,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:12:42,703 INFO L479 AbstractCegarLoop]: Abstraction has 122873 states and 182942 transitions. [2020-10-15 04:12:42,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:12:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 122873 states and 182942 transitions. [2020-10-15 04:12:42,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-15 04:12:42,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:12:42,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:12:42,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 04:12:42,803 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:12:42,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:12:42,804 INFO L82 PathProgramCache]: Analyzing trace with hash 685089309, now seen corresponding path program 1 times [2020-10-15 04:12:42,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:12:42,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1172071515] [2020-10-15 04:12:42,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:12:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:12:42,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:42,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:43,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:47,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:12:47,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-10-15 04:12:47,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 04:12:47,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 04:12:47,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:12:47,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:12:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:12:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:12:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-15 04:12:47,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:12:48,440 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:12:48,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:12:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:12:48,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:12:48,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:12:48,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:12:48,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:12:48,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 04:12:48,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:12:48,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:12:48,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:12:48,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:12:48,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:12:48,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:12:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:12:48,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1172071515] [2020-10-15 04:12:48,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:12:48,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:12:48,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213566590] [2020-10-15 04:12:48,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:12:48,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:12:48,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:12:48,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:12:48,569 INFO L87 Difference]: Start difference. First operand 122873 states and 182942 transitions. Second operand 5 states. [2020-10-15 04:13:09,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:13:09,707 INFO L93 Difference]: Finished difference Result 363018 states and 539387 transitions. [2020-10-15 04:13:09,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:13:09,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 336 [2020-10-15 04:13:09,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:13:10,020 INFO L225 Difference]: With dead ends: 363018 [2020-10-15 04:13:10,020 INFO L226 Difference]: Without dead ends: 240165 [2020-10-15 04:13:10,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:13:10,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240165 states. [2020-10-15 04:13:22,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240165 to 240053. [2020-10-15 04:13:22,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240053 states. [2020-10-15 04:13:22,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240053 states to 240053 states and 354404 transitions. [2020-10-15 04:13:22,379 INFO L78 Accepts]: Start accepts. Automaton has 240053 states and 354404 transitions. Word has length 336 [2020-10-15 04:13:22,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:13:22,379 INFO L479 AbstractCegarLoop]: Abstraction has 240053 states and 354404 transitions. [2020-10-15 04:13:22,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:13:22,380 INFO L276 IsEmpty]: Start isEmpty. Operand 240053 states and 354404 transitions. [2020-10-15 04:13:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-15 04:13:22,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:13:22,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:13:22,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 04:13:22,562 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_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]=== [2020-10-15 04:13:22,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:13:22,563 INFO L82 PathProgramCache]: Analyzing trace with hash 946791603, now seen corresponding path program 1 times [2020-10-15 04:13:22,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:13:22,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852278746] [2020-10-15 04:13:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:13:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:13:22,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:22,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:22,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:23,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:23,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:23,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:23,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:23,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:23,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:23,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:23,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:23,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:29,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:13:29,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 344 [2020-10-15 04:13:29,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 04:13:29,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7128 [2020-10-15 04:13:29,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:13:29,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:13:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:13:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:13:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-15 04:13:29,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:13:30,359 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 04:13:30,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:13:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:13:30,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:13:30,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:13:30,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:13:30,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:13:30,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:13:30,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:13:30,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:13:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:13:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:13:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:13:30,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:13:30,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:13:30,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852278746] [2020-10-15 04:13:30,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:13:30,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:13:30,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197208806] [2020-10-15 04:13:30,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:13:30,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:13:30,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:13:30,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:13:30,492 INFO L87 Difference]: Start difference. First operand 240053 states and 354404 transitions. Second operand 5 states.