/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.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:07:24,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:07:24,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:07:24,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:07:24,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:07:24,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:07:24,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:07:24,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:07:24,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:07:24,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:07:24,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:07:24,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:07:24,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:07:24,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:07:24,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:07:24,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:07:24,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:07:24,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:07:24,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:07:25,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:07:25,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:07:25,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:07:25,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:07:25,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:07:25,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:07:25,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:07:25,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:07:25,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:07:25,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:07:25,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:07:25,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:07:25,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:07:25,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:07:25,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:07:25,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:07:25,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:07:25,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:07:25,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:07:25,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:07:25,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:07:25,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:07:25,028 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 03:07:25,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:07:25,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:07:25,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:07:25,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:07:25,051 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:07:25,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:07:25,051 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:07:25,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:07:25,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:07:25,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:07:25,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:07:25,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:07:25,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:07:25,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:07:25,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:07:25,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:07:25,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:07:25,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:07:25,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:07:25,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:07:25,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:07:25,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:07:25,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:07:25,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:07:25,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:07:25,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:07:25,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:07:25,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:07:25,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:07:25,056 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 03:07:25,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:07:25,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:07:25,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:07:25,441 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:07:25,441 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:07:25,442 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-15 03:07:25,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28238c055/b8e104bf47764f5c8f6dfc28b21303ad/FLAGd1449a66e [2020-10-15 03:07:26,291 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:07:26,292 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-15 03:07:26,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28238c055/b8e104bf47764f5c8f6dfc28b21303ad/FLAGd1449a66e [2020-10-15 03:07:26,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28238c055/b8e104bf47764f5c8f6dfc28b21303ad [2020-10-15 03:07:26,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:07:26,413 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:07:26,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:07:26,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:07:26,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:07:26,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:26" (1/1) ... [2020-10-15 03:07:26,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8484e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:26, skipping insertion in model container [2020-10-15 03:07:26,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:26" (1/1) ... [2020-10-15 03:07:26,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:07:26,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:07:28,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:07:28,407 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:07:29,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:07:29,439 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:07:29,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:29 WrapperNode [2020-10-15 03:07:29,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:07:29,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:07:29,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:07:29,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:07:29,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:29" (1/1) ... [2020-10-15 03:07:29,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:29" (1/1) ... [2020-10-15 03:07:29,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:29" (1/1) ... [2020-10-15 03:07:29,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:29" (1/1) ... [2020-10-15 03:07:29,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:29" (1/1) ... [2020-10-15 03:07:29,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:29" (1/1) ... [2020-10-15 03:07:29,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:29" (1/1) ... [2020-10-15 03:07:29,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:07:29,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:07:29,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:07:29,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:07:29,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:29" (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 03:07:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:07:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:07:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:07:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:07:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:07:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:07:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:07:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:07:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:07:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:07:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:07:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:07:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:07:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:07:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:07:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:07:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:07:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:07:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:07:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:07:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:07:33,678 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:07:33,679 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:07:33,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:33 BoogieIcfgContainer [2020-10-15 03:07:33,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:07:33,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:07:33,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:07:33,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:07:33,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:07:26" (1/3) ... [2020-10-15 03:07:33,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6649072f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:33, skipping insertion in model container [2020-10-15 03:07:33,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:29" (2/3) ... [2020-10-15 03:07:33,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6649072f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:33, skipping insertion in model container [2020-10-15 03:07:33,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:33" (3/3) ... [2020-10-15 03:07:33,702 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-15 03:07:33,718 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:07:33,730 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-15 03:07:33,747 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-15 03:07:33,786 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:07:33,786 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:07:33,786 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:07:33,786 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:07:33,787 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:07:33,787 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:07:33,787 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:07:33,787 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:07:33,832 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states. [2020-10-15 03:07:33,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-15 03:07:33,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:07:33,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:07:33,864 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:07:33,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:07:33,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1970494587, now seen corresponding path program 1 times [2020-10-15 03:07:33,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:07:33,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854616489] [2020-10-15 03:07:33,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:07:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:07:35,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:35,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:36,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:36,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:37,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:37,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:37,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:37,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:38,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:38,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:38,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:38,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:38,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:07:39,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-15 03:07:39,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:07:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-15 03:07:39,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:07:39,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:07:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:07:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-15 03:07:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-15 03:07:39,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:07:41,531 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:07:41,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:07:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:07:41,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:41,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:07:41,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:07:41,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:07:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 03:07:41,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:07:41,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:07:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:07:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:07:41,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:07:41,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:07:41,761 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 03:07:41,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854616489] [2020-10-15 03:07:41,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:07:41,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:07:41,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615449284] [2020-10-15 03:07:41,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:07:41,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:07:41,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:07:41,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:07:41,791 INFO L87 Difference]: Start difference. First operand 910 states. Second operand 4 states. [2020-10-15 03:07:42,447 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 317 [2020-10-15 03:07:50,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:07:50,425 INFO L93 Difference]: Finished difference Result 1605 states and 2877 transitions. [2020-10-15 03:07:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:07:50,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 302 [2020-10-15 03:07:50,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:07:50,463 INFO L225 Difference]: With dead ends: 1605 [2020-10-15 03:07:50,463 INFO L226 Difference]: Without dead ends: 1402 [2020-10-15 03:07:50,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:07:50,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2020-10-15 03:07:50,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1400. [2020-10-15 03:07:50,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1400 states. [2020-10-15 03:07:50,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 2161 transitions. [2020-10-15 03:07:50,619 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 2161 transitions. Word has length 302 [2020-10-15 03:07:50,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:07:50,620 INFO L479 AbstractCegarLoop]: Abstraction has 1400 states and 2161 transitions. [2020-10-15 03:07:50,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:07:50,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 2161 transitions. [2020-10-15 03:07:50,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-15 03:07:50,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:07:50,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:07:50,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:07:50,629 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:07:50,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:07:50,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1970155963, now seen corresponding path program 1 times [2020-10-15 03:07:50,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:07:50,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84137800] [2020-10-15 03:07:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:07:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:07:51,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:51,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:51,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:52,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:52,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:52,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:53,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:53,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:53,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:53,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:53,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:54,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:55,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:07:55,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-15 03:07:55,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:07:55,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-15 03:07:55,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:07:55,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:07:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:07:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:07:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-15 03:07:55,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:07:56,837 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:07:56,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:07:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:07:56,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:07:56,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:07:56,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:07:56,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:07:56,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 03:07:56,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:07:56,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:07:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:07:56,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:07:56,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:07:56,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:07:57,286 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 03:07:57,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84137800] [2020-10-15 03:07:57,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:07:57,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:07:57,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686697609] [2020-10-15 03:07:57,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:07:57,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:07:57,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:07:57,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:07:57,294 INFO L87 Difference]: Start difference. First operand 1400 states and 2161 transitions. Second operand 5 states. [2020-10-15 03:08:07,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:08:07,482 INFO L93 Difference]: Finished difference Result 4132 states and 6374 transitions. [2020-10-15 03:08:07,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:08:07,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-10-15 03:08:07,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:08:07,499 INFO L225 Difference]: With dead ends: 4132 [2020-10-15 03:08:07,500 INFO L226 Difference]: Without dead ends: 2745 [2020-10-15 03:08:07,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:08:07,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2020-10-15 03:08:07,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 2609. [2020-10-15 03:08:07,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2609 states. [2020-10-15 03:08:07,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 4020 transitions. [2020-10-15 03:08:07,625 INFO L78 Accepts]: Start accepts. Automaton has 2609 states and 4020 transitions. Word has length 302 [2020-10-15 03:08:07,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:08:07,626 INFO L479 AbstractCegarLoop]: Abstraction has 2609 states and 4020 transitions. [2020-10-15 03:08:07,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:08:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 2609 states and 4020 transitions. [2020-10-15 03:08:07,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-15 03:08:07,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:08:07,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:08:07,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:08:07,636 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:08:07,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:08:07,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1450517626, now seen corresponding path program 1 times [2020-10-15 03:08:07,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:08:07,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157381451] [2020-10-15 03:08:07,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:08:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:07,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:08,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:08,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:08,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:08,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:09,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:09,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:09,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:09,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:09,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:10,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:10,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:10,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:12,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:12,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-15 03:08:12,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:08:12,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-15 03:08:12,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:12,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:08:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:08:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-15 03:08:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:08:13,701 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:08:13,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:08:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:13,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:13,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:13,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:08:13,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:08:13,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 03:08:13,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:13,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:08:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:08:13,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:08:13,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:08:13,948 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 03:08:13,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157381451] [2020-10-15 03:08:13,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:08:13,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:08:13,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113829120] [2020-10-15 03:08:13,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:08:13,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:08:13,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:08:13,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:08:13,958 INFO L87 Difference]: Start difference. First operand 2609 states and 4020 transitions. Second operand 5 states. [2020-10-15 03:08:24,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:08:24,484 INFO L93 Difference]: Finished difference Result 7655 states and 11769 transitions. [2020-10-15 03:08:24,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:08:24,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-10-15 03:08:24,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:08:24,510 INFO L225 Difference]: With dead ends: 7655 [2020-10-15 03:08:24,510 INFO L226 Difference]: Without dead ends: 5110 [2020-10-15 03:08:24,516 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 03:08:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5110 states. [2020-10-15 03:08:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5110 to 5010. [2020-10-15 03:08:24,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5010 states. [2020-10-15 03:08:24,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5010 states to 5010 states and 7678 transitions. [2020-10-15 03:08:24,774 INFO L78 Accepts]: Start accepts. Automaton has 5010 states and 7678 transitions. Word has length 304 [2020-10-15 03:08:24,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:08:24,774 INFO L479 AbstractCegarLoop]: Abstraction has 5010 states and 7678 transitions. [2020-10-15 03:08:24,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:08:24,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5010 states and 7678 transitions. [2020-10-15 03:08:24,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-15 03:08:24,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:08:24,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:08:24,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:08:24,794 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:08:24,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:08:24,794 INFO L82 PathProgramCache]: Analyzing trace with hash 2067181267, now seen corresponding path program 1 times [2020-10-15 03:08:24,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:08:24,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401290858] [2020-10-15 03:08:24,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:08:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:24,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:24,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:25,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:25,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:25,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:25,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:26,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:27,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:27,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:28,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:29,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:29,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-15 03:08:29,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:08:29,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:08:29,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:29,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:08:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:08:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-15 03:08:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:08:30,556 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:08:30,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:08:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:30,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:30,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:30,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:08:30,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:08:30,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 03:08:30,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:30,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:08:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:08:30,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:08:30,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:08:30,784 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 03:08:30,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401290858] [2020-10-15 03:08:30,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:08:30,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:08:30,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613354159] [2020-10-15 03:08:30,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:08:30,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:08:30,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:08:30,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:08:30,791 INFO L87 Difference]: Start difference. First operand 5010 states and 7678 transitions. Second operand 5 states. [2020-10-15 03:08:40,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:08:40,892 INFO L93 Difference]: Finished difference Result 14577 states and 22253 transitions. [2020-10-15 03:08:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:08:40,893 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2020-10-15 03:08:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:08:40,933 INFO L225 Difference]: With dead ends: 14577 [2020-10-15 03:08:40,934 INFO L226 Difference]: Without dead ends: 9757 [2020-10-15 03:08:40,945 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 03:08:40,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9757 states. [2020-10-15 03:08:41,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9757 to 9573. [2020-10-15 03:08:41,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9573 states. [2020-10-15 03:08:41,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9573 states to 9573 states and 14571 transitions. [2020-10-15 03:08:41,395 INFO L78 Accepts]: Start accepts. Automaton has 9573 states and 14571 transitions. Word has length 306 [2020-10-15 03:08:41,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:08:41,395 INFO L479 AbstractCegarLoop]: Abstraction has 9573 states and 14571 transitions. [2020-10-15 03:08:41,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:08:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 9573 states and 14571 transitions. [2020-10-15 03:08:41,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-15 03:08:41,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:08:41,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:08:41,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:08:41,416 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:08:41,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:08:41,416 INFO L82 PathProgramCache]: Analyzing trace with hash -452535608, now seen corresponding path program 1 times [2020-10-15 03:08:41,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:08:41,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39644408] [2020-10-15 03:08:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:08:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:41,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:41,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:41,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:41,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:41,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:41,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:42,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:42,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:42,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:42,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:43,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:43,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:43,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:43,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:43,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:46,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:46,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-15 03:08:46,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:08:46,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 03:08:46,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:46,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:08:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 03:08:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-15 03:08:46,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-15 03:08:47,294 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:08:47,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:08:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:47,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:47,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:08:47,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:08:47,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:08:47,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:08:47,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:08:47,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:08:47,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:08:47,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:08:47,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:08:47,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:08:47,570 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 03:08:47,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39644408] [2020-10-15 03:08:47,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:08:47,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:08:47,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067091245] [2020-10-15 03:08:47,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:08:47,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:08:47,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:08:47,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:08:47,573 INFO L87 Difference]: Start difference. First operand 9573 states and 14571 transitions. Second operand 4 states. [2020-10-15 03:08:58,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:08:58,699 INFO L93 Difference]: Finished difference Result 27895 states and 42321 transitions. [2020-10-15 03:08:58,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:08:58,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-10-15 03:08:58,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:08:58,760 INFO L225 Difference]: With dead ends: 27895 [2020-10-15 03:08:58,760 INFO L226 Difference]: Without dead ends: 18779 [2020-10-15 03:08:58,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:08:58,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18779 states. [2020-10-15 03:08:59,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18779 to 18623. [2020-10-15 03:08:59,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18623 states. [2020-10-15 03:08:59,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18623 states to 18623 states and 28165 transitions. [2020-10-15 03:08:59,708 INFO L78 Accepts]: Start accepts. Automaton has 18623 states and 28165 transitions. Word has length 308 [2020-10-15 03:08:59,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:08:59,708 INFO L479 AbstractCegarLoop]: Abstraction has 18623 states and 28165 transitions. [2020-10-15 03:08:59,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:08:59,708 INFO L276 IsEmpty]: Start isEmpty. Operand 18623 states and 28165 transitions. [2020-10-15 03:08:59,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-15 03:08:59,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:08:59,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:08:59,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:08:59,763 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:08:59,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:08:59,764 INFO L82 PathProgramCache]: Analyzing trace with hash 383802061, now seen corresponding path program 1 times [2020-10-15 03:08:59,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:08:59,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307433685] [2020-10-15 03:08:59,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:08:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:08:59,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:59,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:08:59,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:00,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:00,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:00,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:00,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:00,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:00,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:00,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:00,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:00,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:02,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:04,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:04,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-15 03:09:04,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:09:04,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:09:04,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:04,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:09:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:09:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-15 03:09:04,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:09:05,523 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:09:05,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:09:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:05,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:05,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:05,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:09:05,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:09:05,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:09:05,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:05,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:09:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:09:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:09:05,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:09:05,824 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 03:09:05,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307433685] [2020-10-15 03:09:05,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:09:05,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:09:05,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781431618] [2020-10-15 03:09:05,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:09:05,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:09:05,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:09:05,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:09:05,827 INFO L87 Difference]: Start difference. First operand 18623 states and 28165 transitions. Second operand 5 states. [2020-10-15 03:09:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:09:18,080 INFO L93 Difference]: Finished difference Result 54759 states and 82641 transitions. [2020-10-15 03:09:18,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:09:18,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2020-10-15 03:09:18,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:09:18,150 INFO L225 Difference]: With dead ends: 54759 [2020-10-15 03:09:18,150 INFO L226 Difference]: Without dead ends: 36487 [2020-10-15 03:09:18,190 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 03:09:18,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36487 states. [2020-10-15 03:09:21,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36487 to 36279. [2020-10-15 03:09:21,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36279 states. [2020-10-15 03:09:21,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36279 states to 36279 states and 54529 transitions. [2020-10-15 03:09:21,313 INFO L78 Accepts]: Start accepts. Automaton has 36279 states and 54529 transitions. Word has length 308 [2020-10-15 03:09:21,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:09:21,313 INFO L479 AbstractCegarLoop]: Abstraction has 36279 states and 54529 transitions. [2020-10-15 03:09:21,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:09:21,314 INFO L276 IsEmpty]: Start isEmpty. Operand 36279 states and 54529 transitions. [2020-10-15 03:09:21,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-15 03:09:21,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:09:21,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:09:21,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:09:21,372 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:09:21,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:09:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1893547118, now seen corresponding path program 1 times [2020-10-15 03:09:21,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:09:21,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960684609] [2020-10-15 03:09:21,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:09:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:21,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:21,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:21,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:21,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:21,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:21,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:22,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:22,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:22,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:22,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:22,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:22,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:23,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:24,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:26,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:26,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-15 03:09:26,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:09:26,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-15 03:09:26,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:26,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:26,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:09:26,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:09:26,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-15 03:09:26,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:09:27,186 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:09:27,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:09:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:27,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:27,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:27,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:09:27,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:09:27,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:09:27,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:27,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:27,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:09:27,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:09:27,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:09:27,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:09:27,349 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 03:09:27,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960684609] [2020-10-15 03:09:27,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:09:27,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:09:27,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018896121] [2020-10-15 03:09:27,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:09:27,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:09:27,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:09:27,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:09:27,352 INFO L87 Difference]: Start difference. First operand 36279 states and 54529 transitions. Second operand 5 states. [2020-10-15 03:09:41,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:09:41,402 INFO L93 Difference]: Finished difference Result 106487 states and 159563 transitions. [2020-10-15 03:09:41,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:09:41,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-10-15 03:09:41,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:09:41,505 INFO L225 Difference]: With dead ends: 106487 [2020-10-15 03:09:41,505 INFO L226 Difference]: Without dead ends: 70703 [2020-10-15 03:09:41,584 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 03:09:41,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70703 states. [2020-10-15 03:09:45,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70703 to 70635. [2020-10-15 03:09:45,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70635 states. [2020-10-15 03:09:45,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70635 states to 70635 states and 105009 transitions. [2020-10-15 03:09:45,577 INFO L78 Accepts]: Start accepts. Automaton has 70635 states and 105009 transitions. Word has length 310 [2020-10-15 03:09:45,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:09:45,578 INFO L479 AbstractCegarLoop]: Abstraction has 70635 states and 105009 transitions. [2020-10-15 03:09:45,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:09:45,578 INFO L276 IsEmpty]: Start isEmpty. Operand 70635 states and 105009 transitions. [2020-10-15 03:09:45,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-15 03:09:45,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:09:45,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:45,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:09:45,680 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:09:45,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:09:45,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1783528781, now seen corresponding path program 1 times [2020-10-15 03:09:45,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:09:45,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848476809] [2020-10-15 03:09:45,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:09:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:45,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:45,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:45,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:45,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:45,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:46,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:46,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:46,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:46,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:46,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:46,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:49,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:49,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:49,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:49,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:50,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:50,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-15 03:09:50,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:09:50,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-15 03:09:50,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:50,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:09:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-15 03:09:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-15 03:09:50,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:09:51,425 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:09:51,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:09:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:51,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:51,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:51,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:09:51,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:09:51,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:09:51,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:51,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:51,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:09:51,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:09:51,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:09:51,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:09:51,584 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 03:09:51,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848476809] [2020-10-15 03:09:51,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:09:51,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:09:51,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991440646] [2020-10-15 03:09:51,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:09:51,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:09:51,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:09:51,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:09:51,587 INFO L87 Difference]: Start difference. First operand 70635 states and 105009 transitions. Second operand 4 states. [2020-10-15 03:10:10,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:10:10,589 INFO L93 Difference]: Finished difference Result 207737 states and 308211 transitions. [2020-10-15 03:10:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:10:10,590 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 312 [2020-10-15 03:10:10,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:10:10,865 INFO L225 Difference]: With dead ends: 207737 [2020-10-15 03:10:10,865 INFO L226 Difference]: Without dead ends: 138757 [2020-10-15 03:10:10,964 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 03:10:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138757 states. [2020-10-15 03:10:18,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138757 to 138417. [2020-10-15 03:10:18,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138417 states. [2020-10-15 03:10:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138417 states to 138417 states and 204395 transitions. [2020-10-15 03:10:19,196 INFO L78 Accepts]: Start accepts. Automaton has 138417 states and 204395 transitions. Word has length 312 [2020-10-15 03:10:19,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:10:19,196 INFO L479 AbstractCegarLoop]: Abstraction has 138417 states and 204395 transitions. [2020-10-15 03:10:19,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:10:19,197 INFO L276 IsEmpty]: Start isEmpty. Operand 138417 states and 204395 transitions. [2020-10-15 03:10:19,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-15 03:10:19,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:10:19,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:10:19,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:10:19,337 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:10:19,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:10:19,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1073035310, now seen corresponding path program 1 times [2020-10-15 03:10:19,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:10:19,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777143815] [2020-10-15 03:10:19,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:10:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:10:21,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:21,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:21,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:21,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:21,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:22,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:22,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:22,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:22,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:22,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:22,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:22,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:22,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:23,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:23,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:26,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:10:26,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-15 03:10:26,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:10:26,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 03:10:26,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:10:26,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:10:26,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:10:26,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:10:26,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-15 03:10:26,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:10:27,395 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:10:27,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:10:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:10:27,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:27,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:10:27,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:10:27,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:10:27,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:10:27,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:10:27,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:10:27,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:10:27,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:10:27,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:10:27,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:10:27,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:10:27,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777143815] [2020-10-15 03:10:27,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:10:27,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:10:27,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187019021] [2020-10-15 03:10:27,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:10:27,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:10:27,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:10:27,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:10:27,546 INFO L87 Difference]: Start difference. First operand 138417 states and 204395 transitions. Second operand 5 states. [2020-10-15 03:10:54,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:10:54,550 INFO L93 Difference]: Finished difference Result 407304 states and 600073 transitions. [2020-10-15 03:10:54,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:10:54,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 312 [2020-10-15 03:10:54,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:10:55,008 INFO L225 Difference]: With dead ends: 407304 [2020-10-15 03:10:55,009 INFO L226 Difference]: Without dead ends: 270460 [2020-10-15 03:10:55,163 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 03:10:55,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270460 states. [2020-10-15 03:11:13,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270460 to 270120. [2020-10-15 03:11:13,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270120 states. [2020-10-15 03:11:13,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270120 states to 270120 states and 395305 transitions. [2020-10-15 03:11:13,966 INFO L78 Accepts]: Start accepts. Automaton has 270120 states and 395305 transitions. Word has length 312 [2020-10-15 03:11:13,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:11:13,967 INFO L479 AbstractCegarLoop]: Abstraction has 270120 states and 395305 transitions. [2020-10-15 03:11:13,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:11:13,967 INFO L276 IsEmpty]: Start isEmpty. Operand 270120 states and 395305 transitions. [2020-10-15 03:11:14,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-15 03:11:14,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:11:14,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:11:14,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:11:14,225 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:11:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:11:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1706257355, now seen corresponding path program 1 times [2020-10-15 03:11:14,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:11:14,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327974221] [2020-10-15 03:11:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:11:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:11:14,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:14,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking...