/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:07:46,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:07:46,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:07:46,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:07:46,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:07:47,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:07:47,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:07:47,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:07:47,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:07:47,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:07:47,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:07:47,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:07:47,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:07:47,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:07:47,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:07:47,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:07:47,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:07:47,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:07:47,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:07:47,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:07:47,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:07:47,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:07:47,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:07:47,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:07:47,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:07:47,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:07:47,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:07:47,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:07:47,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:07:47,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:07:47,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:07:47,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:07:47,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:07:47,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:07:47,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:07:47,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:07:47,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:07:47,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:07:47,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:07:47,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:07:47,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:07:47,070 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 03:07:47,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:07:47,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:07:47,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:07:47,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:07:47,115 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:07:47,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:07:47,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:07:47,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:07:47,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:07:47,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:07:47,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:07:47,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:07:47,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:07:47,118 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:07:47,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:07:47,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:07:47,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:07:47,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:07:47,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:07:47,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:07:47,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:07:47,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:07:47,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:07:47,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:07:47,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:07:47,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:07:47,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:07:47,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:07:47,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:07:47,121 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 03:07:47,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:07:47,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:07:47,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:07:47,515 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:07:47,516 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:07:47,516 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2020-10-15 03:07:47,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b116fc65/48a3b00892574e5ba0457fba1647ac57/FLAGf56915670 [2020-10-15 03:07:48,380 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:07:48,381 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2020-10-15 03:07:48,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b116fc65/48a3b00892574e5ba0457fba1647ac57/FLAGf56915670 [2020-10-15 03:07:48,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b116fc65/48a3b00892574e5ba0457fba1647ac57 [2020-10-15 03:07:48,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:07:48,454 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:07:48,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:07:48,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:07:48,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:07:48,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:48" (1/1) ... [2020-10-15 03:07:48,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2159a123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:48, skipping insertion in model container [2020-10-15 03:07:48,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:48" (1/1) ... [2020-10-15 03:07:48,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:07:48,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:07:49,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:07:49,880 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:07:50,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:07:50,481 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:07:50,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:50 WrapperNode [2020-10-15 03:07:50,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:07:50,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:07:50,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:07:50,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:07:50,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:50" (1/1) ... [2020-10-15 03:07:50,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:50" (1/1) ... [2020-10-15 03:07:50,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:50" (1/1) ... [2020-10-15 03:07:50,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:50" (1/1) ... [2020-10-15 03:07:50,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:50" (1/1) ... [2020-10-15 03:07:50,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:50" (1/1) ... [2020-10-15 03:07:50,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:50" (1/1) ... [2020-10-15 03:07:50,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:07:50,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:07:50,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:07:50,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:07:50,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:50" (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 03:07:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:07:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:07:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:07:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:07:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:07:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:07:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 03:07:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:07:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:07:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:07:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:07:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:07:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:07:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:07:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:07:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:07:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:07:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:07:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:07:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:07:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:07:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:07:54,229 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:07:54,230 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:07:54,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:54 BoogieIcfgContainer [2020-10-15 03:07:54,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:07:54,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:07:54,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:07:54,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:07:54,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:07:48" (1/3) ... [2020-10-15 03:07:54,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a931e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:54, skipping insertion in model container [2020-10-15 03:07:54,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:50" (2/3) ... [2020-10-15 03:07:54,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a931e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:54, skipping insertion in model container [2020-10-15 03:07:54,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:54" (3/3) ... [2020-10-15 03:07:54,253 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2020-10-15 03:07:54,265 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:07:54,275 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 03:07:54,292 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 03:07:54,324 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:07:54,324 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:07:54,324 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:07:54,324 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:07:54,324 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:07:54,325 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:07:54,325 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:07:54,325 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:07:54,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states. [2020-10-15 03:07:54,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-15 03:07:54,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:07:54,397 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] [2020-10-15 03:07:54,398 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:07:54,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:07:54,405 INFO L82 PathProgramCache]: Analyzing trace with hash 236503625, now seen corresponding path program 1 times [2020-10-15 03:07:54,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:07:54,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756119420] [2020-10-15 03:07:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:07:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:07:55,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:55,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:55,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:55,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:56,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:56,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:56,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:57,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:00,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:00,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-15 03:08:00,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:08:00,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-15 03:08:00,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:00,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:08:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-15 03:08:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 03:08:00,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 03:08:00,792 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 03:08:00,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:08:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:00,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:00,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:00,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:08:00,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:08:00,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-15 03:08:00,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:00,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:08:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:08:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:08:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:08:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:08:00,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756119420] [2020-10-15 03:08:00,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:08:00,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:08:00,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953842973] [2020-10-15 03:08:00,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:08:00,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:08:00,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:08:00,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:08:00,955 INFO L87 Difference]: Start difference. First operand 1126 states. Second operand 4 states. [2020-10-15 03:08:09,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:08:09,443 INFO L93 Difference]: Finished difference Result 2599 states and 4469 transitions. [2020-10-15 03:08:09,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:08:09,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-15 03:08:09,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:08:09,496 INFO L225 Difference]: With dead ends: 2599 [2020-10-15 03:08:09,496 INFO L226 Difference]: Without dead ends: 1861 [2020-10-15 03:08:09,509 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 03:08:09,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2020-10-15 03:08:09,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1791. [2020-10-15 03:08:09,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1791 states. [2020-10-15 03:08:09,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 3077 transitions. [2020-10-15 03:08:09,693 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 3077 transitions. Word has length 154 [2020-10-15 03:08:09,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:08:09,695 INFO L479 AbstractCegarLoop]: Abstraction has 1791 states and 3077 transitions. [2020-10-15 03:08:09,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:08:09,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 3077 transitions. [2020-10-15 03:08:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-15 03:08:09,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:08:09,715 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] [2020-10-15 03:08:09,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:08:09,717 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:08:09,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:08:09,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1875794080, now seen corresponding path program 1 times [2020-10-15 03:08:09,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:08:09,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785192451] [2020-10-15 03:08:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:08:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:09,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:10,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:10,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:10,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:10,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:10,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:10,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:10,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:11,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:12,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:14,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:14,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-15 03:08:14,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:08:14,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-15 03:08:14,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:14,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:14,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:08:14,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:08:14,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 03:08:14,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:08:15,465 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 03:08:15,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:08:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:15,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:15,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:15,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:08:15,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:08:15,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 03:08:15,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:15,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:08:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:08:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:08:15,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 03:08:15,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:08:15,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785192451] [2020-10-15 03:08:15,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:08:15,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:08:15,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507764151] [2020-10-15 03:08:15,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:08:15,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:08:15,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:08:15,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:08:15,574 INFO L87 Difference]: Start difference. First operand 1791 states and 3077 transitions. Second operand 5 states. [2020-10-15 03:08:25,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:08:25,722 INFO L93 Difference]: Finished difference Result 5287 states and 9098 transitions. [2020-10-15 03:08:25,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:08:25,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2020-10-15 03:08:25,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:08:25,745 INFO L225 Difference]: With dead ends: 5287 [2020-10-15 03:08:25,745 INFO L226 Difference]: Without dead ends: 3509 [2020-10-15 03:08:25,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:08:25,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2020-10-15 03:08:25,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3505. [2020-10-15 03:08:25,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3505 states. [2020-10-15 03:08:25,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3505 states to 3505 states and 6012 transitions. [2020-10-15 03:08:25,918 INFO L78 Accepts]: Start accepts. Automaton has 3505 states and 6012 transitions. Word has length 169 [2020-10-15 03:08:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:08:25,919 INFO L479 AbstractCegarLoop]: Abstraction has 3505 states and 6012 transitions. [2020-10-15 03:08:25,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:08:25,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3505 states and 6012 transitions. [2020-10-15 03:08:25,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-15 03:08:25,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:08:25,928 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] [2020-10-15 03:08:25,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:08:25,929 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:08:25,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:08:25,930 INFO L82 PathProgramCache]: Analyzing trace with hash -800499046, now seen corresponding path program 1 times [2020-10-15 03:08:25,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:08:25,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328759485] [2020-10-15 03:08:25,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:08:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:26,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:27,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:30,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:30,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:30,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:31,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:31,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-15 03:08:31,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:08:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-15 03:08:31,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:31,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:08:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:08:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 03:08:31,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 03:08:32,096 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 03:08:32,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:08:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:32,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:32,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:32,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:08:32,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:08:32,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 03:08:32,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:32,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:32,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:08:32,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:08:32,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:08:32,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:08:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:08:32,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328759485] [2020-10-15 03:08:32,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:08:32,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:08:32,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323286521] [2020-10-15 03:08:32,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:08:32,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:08:32,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:08:32,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:08:32,293 INFO L87 Difference]: Start difference. First operand 3505 states and 6012 transitions. Second operand 5 states. [2020-10-15 03:08:45,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:08:45,040 INFO L93 Difference]: Finished difference Result 10227 states and 17555 transitions. [2020-10-15 03:08:45,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:08:45,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-10-15 03:08:45,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:08:45,082 INFO L225 Difference]: With dead ends: 10227 [2020-10-15 03:08:45,082 INFO L226 Difference]: Without dead ends: 6862 [2020-10-15 03:08:45,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:08:45,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6862 states. [2020-10-15 03:08:45,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6862 to 6858. [2020-10-15 03:08:45,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6858 states. [2020-10-15 03:08:45,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6858 states to 6858 states and 11743 transitions. [2020-10-15 03:08:45,623 INFO L78 Accepts]: Start accepts. Automaton has 6858 states and 11743 transitions. Word has length 171 [2020-10-15 03:08:45,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:08:45,623 INFO L479 AbstractCegarLoop]: Abstraction has 6858 states and 11743 transitions. [2020-10-15 03:08:45,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:08:45,624 INFO L276 IsEmpty]: Start isEmpty. Operand 6858 states and 11743 transitions. [2020-10-15 03:08:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-15 03:08:45,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:08:45,643 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] [2020-10-15 03:08:45,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:08:45,643 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:08:45,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:08:45,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1147556477, now seen corresponding path program 1 times [2020-10-15 03:08:45,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:08:45,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440139009] [2020-10-15 03:08:45,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:08:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:45,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:45,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:45,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:45,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:45,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:46,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:46,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:46,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:46,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:46,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:49,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:50,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:50,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-15 03:08:50,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:08:50,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 03:08:50,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:50,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:08:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:08:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 03:08:50,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:08:51,375 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 03:08:51,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:08:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:51,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:51,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:51,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:08:51,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:08:51,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 03:08:51,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:51,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:51,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:08:51,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:08:51,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:08:51,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:08:51,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:08:51,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440139009] [2020-10-15 03:08:51,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:08:51,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:08:51,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137731137] [2020-10-15 03:08:51,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:08:51,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:08:51,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:08:51,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:08:51,482 INFO L87 Difference]: Start difference. First operand 6858 states and 11743 transitions. Second operand 5 states. [2020-10-15 03:09:01,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:09:01,251 INFO L93 Difference]: Finished difference Result 20176 states and 34586 transitions. [2020-10-15 03:09:01,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:09:01,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 173 [2020-10-15 03:09:01,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:09:01,330 INFO L225 Difference]: With dead ends: 20176 [2020-10-15 03:09:01,331 INFO L226 Difference]: Without dead ends: 13402 [2020-10-15 03:09:01,348 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 03:09:01,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13402 states. [2020-10-15 03:09:02,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13402 to 13398. [2020-10-15 03:09:02,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13398 states. [2020-10-15 03:09:02,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13398 states to 13398 states and 22878 transitions. [2020-10-15 03:09:02,138 INFO L78 Accepts]: Start accepts. Automaton has 13398 states and 22878 transitions. Word has length 173 [2020-10-15 03:09:02,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:09:02,139 INFO L479 AbstractCegarLoop]: Abstraction has 13398 states and 22878 transitions. [2020-10-15 03:09:02,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:09:02,139 INFO L276 IsEmpty]: Start isEmpty. Operand 13398 states and 22878 transitions. [2020-10-15 03:09:02,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-15 03:09:02,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:09:02,171 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] [2020-10-15 03:09:02,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:09:02,171 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:09:02,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:09:02,172 INFO L82 PathProgramCache]: Analyzing trace with hash 816566037, now seen corresponding path program 1 times [2020-10-15 03:09:02,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:09:02,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818160515] [2020-10-15 03:09:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:09:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:02,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:02,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:02,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:02,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:02,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:02,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:02,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:02,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:02,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:03,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:06,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:06,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:07,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:07,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:07,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-15 03:09:07,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:09:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-15 03:09:07,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:07,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:09:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-15 03:09:07,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 03:09:07,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:09:07,964 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 03:09:07,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:09:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:07,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:07,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:07,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:09:07,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:09:07,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:09:07,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:09:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:09:08,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818160515] [2020-10-15 03:09:08,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:09:08,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:09:08,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575084855] [2020-10-15 03:09:08,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:09:08,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:09:08,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:09:08,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:09:08,066 INFO L87 Difference]: Start difference. First operand 13398 states and 22878 transitions. Second operand 5 states. [2020-10-15 03:09:24,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:09:24,370 INFO L93 Difference]: Finished difference Result 37874 states and 64587 transitions. [2020-10-15 03:09:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:09:24,371 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 175 [2020-10-15 03:09:24,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:09:24,444 INFO L225 Difference]: With dead ends: 37874 [2020-10-15 03:09:24,444 INFO L226 Difference]: Without dead ends: 25082 [2020-10-15 03:09:24,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:09:24,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25082 states. [2020-10-15 03:09:26,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25082 to 13903. [2020-10-15 03:09:26,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13903 states. [2020-10-15 03:09:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13903 states to 13903 states and 23741 transitions. [2020-10-15 03:09:26,303 INFO L78 Accepts]: Start accepts. Automaton has 13903 states and 23741 transitions. Word has length 175 [2020-10-15 03:09:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:09:26,303 INFO L479 AbstractCegarLoop]: Abstraction has 13903 states and 23741 transitions. [2020-10-15 03:09:26,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:09:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 13903 states and 23741 transitions. [2020-10-15 03:09:26,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-15 03:09:26,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:09:26,332 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] [2020-10-15 03:09:26,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:09:26,333 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:09:26,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:09:26,333 INFO L82 PathProgramCache]: Analyzing trace with hash 952113982, now seen corresponding path program 1 times [2020-10-15 03:09:26,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:09:26,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400993008] [2020-10-15 03:09:26,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:09:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:26,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:26,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:26,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:26,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:26,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:26,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:26,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:27,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:27,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:27,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:31,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:31,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-15 03:09:31,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:09:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-15 03:09:31,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:31,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:09:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-15 03:09:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 03:09:31,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:09:31,876 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 03:09:31,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:09:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:31,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:31,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:31,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:09:31,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:09:31,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 03:09:31,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:31,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:31,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:09:31,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:09:31,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:09:31,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:09:31,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:09:31,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400993008] [2020-10-15 03:09:31,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:09:31,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:09:31,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976224105] [2020-10-15 03:09:31,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:09:31,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:09:31,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:09:31,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:09:31,955 INFO L87 Difference]: Start difference. First operand 13903 states and 23741 transitions. Second operand 4 states. [2020-10-15 03:09:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:09:42,268 INFO L93 Difference]: Finished difference Result 34763 states and 59257 transitions. [2020-10-15 03:09:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:09:42,269 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 176 [2020-10-15 03:09:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:09:42,339 INFO L225 Difference]: With dead ends: 34763 [2020-10-15 03:09:42,339 INFO L226 Difference]: Without dead ends: 24271 [2020-10-15 03:09:42,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:09:42,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24271 states. [2020-10-15 03:09:44,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24271 to 23211. [2020-10-15 03:09:44,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23211 states. [2020-10-15 03:09:44,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 39485 transitions. [2020-10-15 03:09:44,473 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 39485 transitions. Word has length 176 [2020-10-15 03:09:44,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:09:44,474 INFO L479 AbstractCegarLoop]: Abstraction has 23211 states and 39485 transitions. [2020-10-15 03:09:44,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:09:44,474 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 39485 transitions. [2020-10-15 03:09:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-15 03:09:44,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:09:44,512 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] [2020-10-15 03:09:44,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:09:44,514 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:09:44,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:09:44,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1959838844, now seen corresponding path program 1 times [2020-10-15 03:09:44,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:09:44,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721012012] [2020-10-15 03:09:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:09:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:44,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:44,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:44,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:44,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:44,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:45,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:45,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:45,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:45,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:47,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:47,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:48,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:48,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:48,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:49,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:49,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-15 03:09:49,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:09:49,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-15 03:09:49,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:49,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:49,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:09:49,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:09:49,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-15 03:09:49,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:09:50,230 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 03:09:50,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:09:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:50,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:50,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:50,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:09:50,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:09:50,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:09:50,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:50,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:09:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:09:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:09:50,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:09:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:09:50,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721012012] [2020-10-15 03:09:50,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:09:50,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:09:50,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135725051] [2020-10-15 03:09:50,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:09:50,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:09:50,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:09:50,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:09:50,316 INFO L87 Difference]: Start difference. First operand 23211 states and 39485 transitions. Second operand 5 states. [2020-10-15 03:10:04,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:10:04,940 INFO L93 Difference]: Finished difference Result 68234 states and 116182 transitions. [2020-10-15 03:10:04,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:10:04,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2020-10-15 03:10:04,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:10:05,086 INFO L225 Difference]: With dead ends: 68234 [2020-10-15 03:10:05,086 INFO L226 Difference]: Without dead ends: 45296 [2020-10-15 03:10:05,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:10:05,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45296 states. [2020-10-15 03:10:08,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45296 to 45292. [2020-10-15 03:10:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45292 states. [2020-10-15 03:10:08,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45292 states to 45292 states and 76817 transitions. [2020-10-15 03:10:08,844 INFO L78 Accepts]: Start accepts. Automaton has 45292 states and 76817 transitions. Word has length 191 [2020-10-15 03:10:08,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:10:08,845 INFO L479 AbstractCegarLoop]: Abstraction has 45292 states and 76817 transitions. [2020-10-15 03:10:08,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:10:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 45292 states and 76817 transitions. [2020-10-15 03:10:08,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-15 03:10:08,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:10:08,901 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] [2020-10-15 03:10:08,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:10:08,901 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:10:08,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:10:08,902 INFO L82 PathProgramCache]: Analyzing trace with hash 351422216, now seen corresponding path program 1 times [2020-10-15 03:10:08,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:10:08,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453414353] [2020-10-15 03:10:08,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:10:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:10:08,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:08,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:09,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:09,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:09,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:09,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:09,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:09,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:09,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:09,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:09,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:13,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:13,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:13,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:13,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:10:13,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-15 03:10:13,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:10:13,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-15 03:10:13,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:10:13,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:10:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:10:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:10:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 03:10:13,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:10:14,599 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 03:10:14,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:10:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:10:14,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:14,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:10:14,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:10:14,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:10:14,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:10:14,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:10:14,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:10:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:10:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:10:14,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:10:14,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:10:14,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:10:14,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453414353] [2020-10-15 03:10:14,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:10:14,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:10:14,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581614699] [2020-10-15 03:10:14,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:10:14,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:10:14,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:10:14,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:10:14,676 INFO L87 Difference]: Start difference. First operand 45292 states and 76817 transitions. Second operand 5 states. [2020-10-15 03:10:15,158 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2020-10-15 03:10:32,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:10:32,359 INFO L93 Difference]: Finished difference Result 71186 states and 120549 transitions. [2020-10-15 03:10:32,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 03:10:32,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 193 [2020-10-15 03:10:32,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:10:32,440 INFO L225 Difference]: With dead ends: 71186 [2020-10-15 03:10:32,440 INFO L226 Difference]: Without dead ends: 44729 [2020-10-15 03:10:32,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:10:32,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44729 states. [2020-10-15 03:10:36,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44729 to 44725. [2020-10-15 03:10:36,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44725 states. [2020-10-15 03:10:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44725 states to 44725 states and 75464 transitions. [2020-10-15 03:10:36,138 INFO L78 Accepts]: Start accepts. Automaton has 44725 states and 75464 transitions. Word has length 193 [2020-10-15 03:10:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:10:36,139 INFO L479 AbstractCegarLoop]: Abstraction has 44725 states and 75464 transitions. [2020-10-15 03:10:36,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:10:36,139 INFO L276 IsEmpty]: Start isEmpty. Operand 44725 states and 75464 transitions. [2020-10-15 03:10:36,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-15 03:10:36,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:10:36,191 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] [2020-10-15 03:10:36,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:10:36,192 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:10:36,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:10:36,192 INFO L82 PathProgramCache]: Analyzing trace with hash -755681619, now seen corresponding path program 1 times [2020-10-15 03:10:36,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:10:36,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047419535] [2020-10-15 03:10:36,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:10:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:10:36,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:36,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:36,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:36,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:36,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:36,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:36,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:36,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:36,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:37,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:39,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:41,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:10:41,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-15 03:10:41,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:10:41,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 03:10:41,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:10:41,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:10:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:10:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 03:10:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-15 03:10:41,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:10:41,674 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 03:10:41,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:10:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:10:41,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:41,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:10:41,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:10:41,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:10:41,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:10:41,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:10:41,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:10:41,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:10:41,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:10:41,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:10:41,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:10:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:10:41,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047419535] [2020-10-15 03:10:41,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:10:41,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:10:41,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091377458] [2020-10-15 03:10:41,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:10:41,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:10:41,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:10:41,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:10:41,746 INFO L87 Difference]: Start difference. First operand 44725 states and 75464 transitions. Second operand 4 states. [2020-10-15 03:11:04,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:11:04,288 INFO L93 Difference]: Finished difference Result 130257 states and 219818 transitions. [2020-10-15 03:11:04,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:11:04,289 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2020-10-15 03:11:04,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:11:04,401 INFO L225 Difference]: With dead ends: 130257 [2020-10-15 03:11:04,401 INFO L226 Difference]: Without dead ends: 87517 [2020-10-15 03:11:04,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:11:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87517 states. [2020-10-15 03:11:13,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87517 to 87513. [2020-10-15 03:11:13,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87513 states. [2020-10-15 03:11:13,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87513 states to 87513 states and 147292 transitions. [2020-10-15 03:11:13,321 INFO L78 Accepts]: Start accepts. Automaton has 87513 states and 147292 transitions. Word has length 193 [2020-10-15 03:11:13,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:11:13,321 INFO L479 AbstractCegarLoop]: Abstraction has 87513 states and 147292 transitions. [2020-10-15 03:11:13,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:11:13,322 INFO L276 IsEmpty]: Start isEmpty. Operand 87513 states and 147292 transitions. [2020-10-15 03:11:13,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-15 03:11:13,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:11:13,422 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] [2020-10-15 03:11:13,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:11:13,422 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:11:13,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:11:13,422 INFO L82 PathProgramCache]: Analyzing trace with hash -23685730, now seen corresponding path program 1 times [2020-10-15 03:11:13,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:11:13,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835430707] [2020-10-15 03:11:13,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:11:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:11:13,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:13,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:13,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:13,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:13,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:13,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:13,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:13,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:15,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:15,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:16,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:18,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:11:18,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-15 03:11:18,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:11:18,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:11:18,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:11:18,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:11:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:11:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:11:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-15 03:11:18,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:11:18,995 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 03:11:18,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:11:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:11:19,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:19,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:11:19,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:11:19,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:11:19,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:11:19,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:11:19,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:11:19,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:11:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:11:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:11:19,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:11:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:11:19,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835430707] [2020-10-15 03:11:19,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:11:19,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:11:19,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300403892] [2020-10-15 03:11:19,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:11:19,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:11:19,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:11:19,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:11:19,086 INFO L87 Difference]: Start difference. First operand 87513 states and 147292 transitions. Second operand 5 states. [2020-10-15 03:11:42,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:11:42,962 INFO L93 Difference]: Finished difference Result 177468 states and 298872 transitions. [2020-10-15 03:11:42,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:11:42,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2020-10-15 03:11:42,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:11:43,075 INFO L225 Difference]: With dead ends: 177468 [2020-10-15 03:11:43,076 INFO L226 Difference]: Without dead ends: 92571 [2020-10-15 03:11:43,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:11:43,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92571 states.