/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:13:03,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:13:03,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:13:03,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:13:03,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:13:03,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:13:03,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:13:03,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:13:03,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:13:03,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:13:03,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:13:03,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:13:03,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:13:03,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:13:03,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:13:03,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:13:03,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:13:03,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:13:03,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:13:03,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:13:03,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:13:03,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:13:03,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:13:03,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:13:03,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:13:03,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:13:03,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:13:03,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:13:03,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:13:03,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:13:03,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:13:03,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:13:03,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:13:03,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:13:03,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:13:03,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:13:03,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:13:03,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:13:03,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:13:03,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:13:03,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:13:03,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 08:13:03,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:13:03,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:13:03,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:13:03,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:13:03,554 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:13:03,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:13:03,554 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:13:03,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:13:03,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:13:03,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:13:03,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:13:03,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:13:03,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:13:03,555 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:13:03,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:13:03,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:13:03,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:13:03,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:13:03,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:13:03,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:13:03,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:13:03,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:13:03,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:13:03,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:13:03,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:13:03,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:13:03,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:13:03,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:13:03,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:13:03,558 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:13:03,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:13:03,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:13:03,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:13:03,906 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:13:03,907 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:13:03,907 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.4.ufo.UNBOUNDED.pals.c [2020-10-14 08:13:03,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d98480d6e/75ca7d5299064a029d8416e7503b41f2/FLAG11f6b85f1 [2020-10-14 08:13:04,604 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:13:04,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.4.ufo.UNBOUNDED.pals.c [2020-10-14 08:13:04,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d98480d6e/75ca7d5299064a029d8416e7503b41f2/FLAG11f6b85f1 [2020-10-14 08:13:04,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d98480d6e/75ca7d5299064a029d8416e7503b41f2 [2020-10-14 08:13:04,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:13:04,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:13:04,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:13:04,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:13:04,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:13:04,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:13:04" (1/1) ... [2020-10-14 08:13:04,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73902896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:04, skipping insertion in model container [2020-10-14 08:13:04,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:13:04" (1/1) ... [2020-10-14 08:13:04,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:13:04,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:13:05,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:13:05,451 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:13:05,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:13:05,701 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:13:05,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:05 WrapperNode [2020-10-14 08:13:05,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:13:05,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:13:05,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:13:05,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:13:05,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:05" (1/1) ... [2020-10-14 08:13:05,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:05" (1/1) ... [2020-10-14 08:13:05,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:05" (1/1) ... [2020-10-14 08:13:05,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:05" (1/1) ... [2020-10-14 08:13:05,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:05" (1/1) ... [2020-10-14 08:13:05,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:05" (1/1) ... [2020-10-14 08:13:05,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:05" (1/1) ... [2020-10-14 08:13:05,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:13:05,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:13:05,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:13:05,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:13:05,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:13:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:13:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:13:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:13:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:13:06,036 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:13:06,037 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:13:06,037 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 08:13:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-14 08:13:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:13:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:13:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:13:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:13:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:13:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:13:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:13:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:13:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:13:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:13:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:13:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:13:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:13:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:13:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:13:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:13:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:13:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 08:13:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:13:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:13:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:13:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:13:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:13:08,471 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:13:08,472 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:13:08,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:13:08 BoogieIcfgContainer [2020-10-14 08:13:08,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:13:08,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:13:08,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:13:08,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:13:08,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:13:04" (1/3) ... [2020-10-14 08:13:08,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d600c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:13:08, skipping insertion in model container [2020-10-14 08:13:08,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:05" (2/3) ... [2020-10-14 08:13:08,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d600c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:13:08, skipping insertion in model container [2020-10-14 08:13:08,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:13:08" (3/3) ... [2020-10-14 08:13:08,491 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.4.ufo.UNBOUNDED.pals.c [2020-10-14 08:13:08,502 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:13:08,511 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:13:08,525 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:13:08,553 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:13:08,553 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:13:08,554 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:13:08,554 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:13:08,554 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:13:08,554 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:13:08,554 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:13:08,554 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:13:08,588 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states. [2020-10-14 08:13:08,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-14 08:13:08,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:13:08,617 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] [2020-10-14 08:13:08,618 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:13:08,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:13:08,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1037169193, now seen corresponding path program 1 times [2020-10-14 08:13:08,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:13:08,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800535763] [2020-10-14 08:13:08,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:13:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:09,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:10,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:10,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 08:13:10,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:10,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1080 [2020-10-14 08:13:10,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:10,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 08:13:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:10,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:13:11,426 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:13:11,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:13:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:11,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:11,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:11,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:13:11,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 08:13:11,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:11,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:11,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:11,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:13:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:11,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:11,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:11,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:13:11,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:11,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 08:13:11,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:11,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:11,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:11,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:11,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 08:13:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:11,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:11,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:11,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:13:11,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:11,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:13:11,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:11,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:11,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:11,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:13:11,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:11,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:11,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 08:13:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:11,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:11,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:11,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:11,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:11,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 08:13:11,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:11,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:11,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:11,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:11,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:11,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:11,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 08:13:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:11,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:11,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:11,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:11,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:11,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:13:11,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:11,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:11,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:11,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:11,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:11,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:11,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 08:13:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:11,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:11,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:11,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:11,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:11,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:13:11,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:11,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:12,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 08:13:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:12,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:12,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:12,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:12,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:12,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:13:12,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:12,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:12,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:12,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-14 08:13:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:12,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:12,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:12,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:12,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:12,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:13:12,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:12,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:12,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:12,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:12,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:12,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-14 08:13:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:12,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:12,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:12,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:13:12,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:12,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:13:12,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:12,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:13:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:12,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:12,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:13:12,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800535763] [2020-10-14 08:13:12,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:13:12,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:13:12,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684134621] [2020-10-14 08:13:12,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:13:12,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:13:12,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:13:12,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:13:12,186 INFO L87 Difference]: Start difference. First operand 782 states. Second operand 8 states. [2020-10-14 08:13:15,092 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:15,766 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:16,398 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:17,092 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:17,761 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:18,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:13:18,727 INFO L93 Difference]: Finished difference Result 1069 states and 1884 transitions. [2020-10-14 08:13:18,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 08:13:18,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-10-14 08:13:18,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:13:18,756 INFO L225 Difference]: With dead ends: 1069 [2020-10-14 08:13:18,756 INFO L226 Difference]: Without dead ends: 847 [2020-10-14 08:13:18,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:13:18,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2020-10-14 08:13:18,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 777. [2020-10-14 08:13:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2020-10-14 08:13:18,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1401 transitions. [2020-10-14 08:13:18,966 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1401 transitions. Word has length 187 [2020-10-14 08:13:18,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:13:18,967 INFO L479 AbstractCegarLoop]: Abstraction has 777 states and 1401 transitions. [2020-10-14 08:13:18,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 08:13:18,968 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1401 transitions. [2020-10-14 08:13:18,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-14 08:13:18,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:13:18,974 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] [2020-10-14 08:13:18,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:13:18,974 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:13:18,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:13:18,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1719458073, now seen corresponding path program 1 times [2020-10-14 08:13:18,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:13:18,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381954977] [2020-10-14 08:13:18,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:13:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:19,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:21,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:21,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 08:13:21,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:21,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2770 [2020-10-14 08:13:21,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:21,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:13:21,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 08:13:21,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:13:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:22,860 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:13:22,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:13:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:22,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:22,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:13:22,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:22,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 08:13:22,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:22,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:22,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:22,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:13:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:23,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:23,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:23,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:13:23,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 630 [2020-10-14 08:13:23,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:23,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:23,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:13:23,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:23,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 08:13:23,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 08:13:23,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 08:13:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:23,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:23,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:23,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:13:23,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:23,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:13:23,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:23,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:23,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:13:23,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:13:23,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:13:23,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:23,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 08:13:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:23,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:23,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:23,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:23,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:23,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:13:23,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:23,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:23,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:13:23,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 08:13:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:23,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:23,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:23,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:23,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:23,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:13:23,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:23,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:23,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:23,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 08:13:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:23,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:23,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:23,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:23,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:13:23,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:23,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:23,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:24,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 08:13:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:24,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:24,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:13:24,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:24,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:24,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:24,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:24,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-14 08:13:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:24,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:24,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:13:24,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:24,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:24,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-14 08:13:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:24,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:13:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:13:24,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:13:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:24,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:13:24,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381954977] [2020-10-14 08:13:24,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:13:24,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 08:13:24,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886318355] [2020-10-14 08:13:24,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 08:13:24,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:13:24,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 08:13:24,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-14 08:13:24,228 INFO L87 Difference]: Start difference. First operand 777 states and 1401 transitions. Second operand 14 states. [2020-10-14 08:13:31,857 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 08:13:32,618 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-14 08:13:33,430 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 08:13:34,114 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:13:35,464 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:36,232 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:37,084 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:38,002 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:38,919 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:40,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:13:40,022 INFO L93 Difference]: Finished difference Result 1067 states and 1876 transitions. [2020-10-14 08:13:40,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:13:40,023 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 187 [2020-10-14 08:13:40,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:13:40,034 INFO L225 Difference]: With dead ends: 1067 [2020-10-14 08:13:40,035 INFO L226 Difference]: Without dead ends: 847 [2020-10-14 08:13:40,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:13:40,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2020-10-14 08:13:40,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 777. [2020-10-14 08:13:40,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2020-10-14 08:13:40,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1336 transitions. [2020-10-14 08:13:40,161 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1336 transitions. Word has length 187 [2020-10-14 08:13:40,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:13:40,162 INFO L479 AbstractCegarLoop]: Abstraction has 777 states and 1336 transitions. [2020-10-14 08:13:40,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 08:13:40,162 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1336 transitions. [2020-10-14 08:13:40,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-14 08:13:40,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:13:40,167 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] [2020-10-14 08:13:40,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:13:40,168 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:13:40,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:13:40,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1054520389, now seen corresponding path program 1 times [2020-10-14 08:13:40,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:13:40,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602427415] [2020-10-14 08:13:40,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:13:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:40,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:40,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:41,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:42,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:45,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:45,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 08:13:45,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:13:45,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 08:13:45,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:45,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:13:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-14 08:13:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 08:13:45,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:46,232 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:13:46,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:13:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:46,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:46,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:46,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:13:46,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:46,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:13:46,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:46,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:46,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:46,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:46,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:46,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:46,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:13:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:46,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:46,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:46,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 08:13:46,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:46,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 495 [2020-10-14 08:13:46,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:46,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 08:13:46,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:46,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-14 08:13:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:46,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:46,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:46,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:13:46,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:46,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:13:46,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:46,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:46,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:46,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:46,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:13:46,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:46,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-14 08:13:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:46,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:47,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:47,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:47,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:47,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:13:47,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:47,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:47,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:47,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 08:13:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:47,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:47,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:47,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:47,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:47,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:13:47,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:47,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:47,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:47,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-14 08:13:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:47,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:47,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:47,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:47,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:47,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 08:13:47,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:47,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:47,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:13:47,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:13:47,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:13:47,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:47,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-14 08:13:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:47,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:47,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:47,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:47,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:47,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:13:47,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:47,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:47,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:47,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-14 08:13:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:47,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:47,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:47,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:47,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:47,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:13:47,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:47,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:47,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:47,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-10-14 08:13:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:47,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:47,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:47,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:13:47,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:47,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:13:47,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:47,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:47,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:47,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:13:47,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:47,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:13:47,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602427415] [2020-10-14 08:13:47,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:13:47,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:13:47,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179804092] [2020-10-14 08:13:47,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:13:47,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:13:47,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:13:47,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:13:47,436 INFO L87 Difference]: Start difference. First operand 777 states and 1336 transitions. Second operand 11 states. [2020-10-14 08:13:48,255 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-14 08:13:54,815 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-14 08:13:55,429 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-14 08:13:56,208 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:56,634 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:57,146 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-14 08:13:57,457 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:13:58,416 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-14 08:13:58,885 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:14:00,217 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:14:00,688 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:14:01,180 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-14 08:14:01,866 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2020-10-14 08:14:02,140 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-14 08:14:02,574 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 08:14:02,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:14:02,678 INFO L93 Difference]: Finished difference Result 1351 states and 2280 transitions. [2020-10-14 08:14:02,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:14:02,679 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 251 [2020-10-14 08:14:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:14:02,687 INFO L225 Difference]: With dead ends: 1351 [2020-10-14 08:14:02,688 INFO L226 Difference]: Without dead ends: 1137 [2020-10-14 08:14:02,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:14:02,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2020-10-14 08:14:02,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 991. [2020-10-14 08:14:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-10-14 08:14:02,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1689 transitions. [2020-10-14 08:14:02,840 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1689 transitions. Word has length 251 [2020-10-14 08:14:02,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:14:02,841 INFO L479 AbstractCegarLoop]: Abstraction has 991 states and 1689 transitions. [2020-10-14 08:14:02,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:14:02,841 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1689 transitions. [2020-10-14 08:14:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-14 08:14:02,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:14:02,847 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] [2020-10-14 08:14:02,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:14:02,848 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:14:02,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:14:02,848 INFO L82 PathProgramCache]: Analyzing trace with hash 2030169581, now seen corresponding path program 1 times [2020-10-14 08:14:02,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:14:02,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116314648] [2020-10-14 08:14:02,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:14:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:03,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:03,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:03,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:05,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:06,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:06,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:07,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:08,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:08,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-14 08:14:08,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:14:08,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 08:14:08,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:08,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:14:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:14:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 227 [2020-10-14 08:14:08,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:09,140 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:14:09,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:14:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:09,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:09,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:09,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:09,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:09,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 08:14:09,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:09,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:09,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:09,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:09,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:09,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:14:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:09,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:09,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:09,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 08:14:09,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:09,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-14 08:14:09,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:09,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:14:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 08:14:09,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:09,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-14 08:14:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:09,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:09,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:09,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:09,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:09,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:09,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:09,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:09,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:09,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:09,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:14:09,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:09,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-14 08:14:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:09,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:09,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:09,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:09,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:09,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:14:09,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:09,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:09,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:09,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:09,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:14:09,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:09,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 08:14:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:09,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:09,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:09,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:09,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:09,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:14:09,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:09,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:09,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:09,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:09,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:14:09,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:10,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-14 08:14:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:10,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:10,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:10,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:14:10,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:10,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:14:10,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:10,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:14:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:14:10,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:10,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-14 08:14:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:10,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:10,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:10,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:10,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:10,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:14:10,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:10,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:14:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:10,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:10,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-14 08:14:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:10,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:10,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:10,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:10,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:14:10,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:10,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:10,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:10,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:14:10,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:10,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:10,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-14 08:14:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:10,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:10,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:10,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:14:10,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:10,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:14:10,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:10,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:14:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:10,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:10,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:14:10,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116314648] [2020-10-14 08:14:10,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:14:10,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:14:10,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618529915] [2020-10-14 08:14:10,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:14:10,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:14:10,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:14:10,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:14:10,558 INFO L87 Difference]: Start difference. First operand 991 states and 1689 transitions. Second operand 11 states. [2020-10-14 08:14:11,688 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 374 [2020-10-14 08:14:12,329 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-14 08:14:13,421 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-14 08:14:14,089 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:14:25,550 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:14:25,947 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:14:26,322 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:14:27,211 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:14:27,859 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:14:29,010 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:14:29,607 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:14:30,817 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:14:31,138 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:14:32,370 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:14:32,920 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:14:34,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:14:34,505 INFO L93 Difference]: Finished difference Result 3175 states and 5405 transitions. [2020-10-14 08:14:34,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:14:34,511 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2020-10-14 08:14:34,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:14:34,522 INFO L225 Difference]: With dead ends: 3175 [2020-10-14 08:14:34,523 INFO L226 Difference]: Without dead ends: 2253 [2020-10-14 08:14:34,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:14:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2020-10-14 08:14:34,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 1981. [2020-10-14 08:14:34,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2020-10-14 08:14:34,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 3352 transitions. [2020-10-14 08:14:34,783 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 3352 transitions. Word has length 255 [2020-10-14 08:14:34,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:14:34,784 INFO L479 AbstractCegarLoop]: Abstraction has 1981 states and 3352 transitions. [2020-10-14 08:14:34,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:14:34,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 3352 transitions. [2020-10-14 08:14:34,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-14 08:14:34,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:14:34,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:14:34,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:14:34,792 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:14:34,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:14:34,792 INFO L82 PathProgramCache]: Analyzing trace with hash 790805326, now seen corresponding path program 1 times [2020-10-14 08:14:34,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:14:34,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718330041] [2020-10-14 08:14:34,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:14:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:37,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:38,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:38,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:39,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:39,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:39,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-14 08:14:39,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:14:39,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-14 08:14:39,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:39,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:14:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:14:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-14 08:14:39,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:40,842 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:14:40,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:14:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:40,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:40,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:40,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:40,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:40,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:14:40,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:40,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:40,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:40,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:14:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:40,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:41,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:41,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 08:14:41,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:41,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-14 08:14:41,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:41,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:14:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:14:41,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:41,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-14 08:14:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:41,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:41,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:41,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:41,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:41,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:14:41,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:41,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:14:41,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:41,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-14 08:14:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:41,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:41,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:41,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:41,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:41,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:14:41,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:41,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:41,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:41,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:41,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:14:41,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:41,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 08:14:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:41,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:41,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:41,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:41,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:14:41,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:41,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:14:41,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:41,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-14 08:14:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:41,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:41,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:41,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:14:41,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:41,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:14:41,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:41,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:41,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:41,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:14:41,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:14:41,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:41,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-14 08:14:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:41,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:41,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:41,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:41,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:41,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:14:41,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:41,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:14:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:41,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:41,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 08:14:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:41,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:41,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:41,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:41,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:41,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:14:41,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:41,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:41,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:41,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:14:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:41,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-10-14 08:14:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:41,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:41,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:41,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:14:41,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:41,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:41,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:41,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:14:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:41,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:14:41,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718330041] [2020-10-14 08:14:41,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:14:41,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:14:41,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351427631] [2020-10-14 08:14:41,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:14:41,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:14:41,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:14:41,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:14:42,000 INFO L87 Difference]: Start difference. First operand 1981 states and 3352 transitions. Second operand 11 states. [2020-10-14 08:14:42,757 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-14 08:14:43,484 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2020-10-14 08:14:44,488 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-14 08:14:45,808 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 383 DAG size of output: 381 [2020-10-14 08:15:03,876 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:15:04,359 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:15:04,708 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:15:05,419 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:15:05,894 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:15:06,612 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:15:07,593 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:15:08,430 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:15:09,101 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:15:09,989 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:15:11,048 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:15:11,375 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:15:11,777 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:15:12,489 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:15:12,948 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:15:13,455 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:15:15,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:15:15,072 INFO L93 Difference]: Finished difference Result 8202 states and 13872 transitions. [2020-10-14 08:15:15,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 08:15:15,074 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 256 [2020-10-14 08:15:15,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:15:15,104 INFO L225 Difference]: With dead ends: 8202 [2020-10-14 08:15:15,104 INFO L226 Difference]: Without dead ends: 6328 [2020-10-14 08:15:15,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-14 08:15:15,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2020-10-14 08:15:16,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 5608. [2020-10-14 08:15:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5608 states. [2020-10-14 08:15:16,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5608 states to 5608 states and 9460 transitions. [2020-10-14 08:15:16,037 INFO L78 Accepts]: Start accepts. Automaton has 5608 states and 9460 transitions. Word has length 256 [2020-10-14 08:15:16,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:15:16,038 INFO L479 AbstractCegarLoop]: Abstraction has 5608 states and 9460 transitions. [2020-10-14 08:15:16,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:15:16,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5608 states and 9460 transitions. [2020-10-14 08:15:16,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-14 08:15:16,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:15:16,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:15:16,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:15:16,054 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:15:16,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:15:16,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1658859432, now seen corresponding path program 1 times [2020-10-14 08:15:16,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:15:16,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041588820] [2020-10-14 08:15:16,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:15:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:16,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:16,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:16,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:18,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:19,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:19,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:21,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:21,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-14 08:15:21,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:15:21,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:15:21,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:21,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:15:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:15:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 225 [2020-10-14 08:15:21,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:21,959 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:15:21,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:15:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:21,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:21,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:21,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:21,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:21,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:15:21,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:21,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:21,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:21,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:21,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:21,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:21,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:15:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:22,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:22,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:22,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 08:15:22,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:22,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-14 08:15:22,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:22,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:22,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:15:22,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:22,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 08:15:22,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:22,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-14 08:15:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:22,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:22,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:22,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:22,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:22,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:22,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:22,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:22,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:22,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:15:22,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:22,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-14 08:15:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:22,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:22,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:22,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:15:22,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:22,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:15:22,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:22,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:22,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:22,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:22,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:15:22,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:22,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 08:15:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:22,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:22,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:22,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:15:22,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:22,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:15:22,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:22,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:22,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:22,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:22,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:15:22,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:22,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-14 08:15:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:22,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:22,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:22,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:15:22,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:22,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:15:22,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:22,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:15:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:15:22,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:22,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-14 08:15:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:22,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:22,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:22,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:15:22,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:22,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:15:22,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:22,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:15:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:22,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:22,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-14 08:15:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:22,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:22,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:22,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:15:22,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:22,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:15:22,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:22,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:15:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:22,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-14 08:15:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:22,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:22,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:22,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:15:22,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:22,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:22,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:22,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:22,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:22,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:15:22,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:22,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:22,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:15:22,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041588820] [2020-10-14 08:15:22,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:15:22,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:15:22,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926122285] [2020-10-14 08:15:22,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:15:22,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:15:22,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:15:22,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:15:22,971 INFO L87 Difference]: Start difference. First operand 5608 states and 9460 transitions. Second operand 11 states. [2020-10-14 08:15:23,744 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-14 08:15:24,560 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2020-10-14 08:15:25,376 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-14 08:15:26,830 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 383 DAG size of output: 381 [2020-10-14 08:15:47,323 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:15:47,898 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:15:48,326 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:15:49,254 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:15:49,554 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:15:50,232 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:15:51,291 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:15:52,124 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:15:52,772 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:15:53,708 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:15:54,755 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:15:55,137 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:15:55,448 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:15:56,566 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:15:57,114 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:15:57,545 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:15:59,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:15:59,956 INFO L93 Difference]: Finished difference Result 23254 states and 39210 transitions. [2020-10-14 08:15:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 08:15:59,958 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 257 [2020-10-14 08:15:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:16:00,024 INFO L225 Difference]: With dead ends: 23254 [2020-10-14 08:16:00,024 INFO L226 Difference]: Without dead ends: 18024 [2020-10-14 08:16:00,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-14 08:16:00,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18024 states. [2020-10-14 08:16:02,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18024 to 16108. [2020-10-14 08:16:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16108 states. [2020-10-14 08:16:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16108 states to 16108 states and 27076 transitions. [2020-10-14 08:16:02,689 INFO L78 Accepts]: Start accepts. Automaton has 16108 states and 27076 transitions. Word has length 257 [2020-10-14 08:16:02,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:16:02,690 INFO L479 AbstractCegarLoop]: Abstraction has 16108 states and 27076 transitions. [2020-10-14 08:16:02,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:16:02,690 INFO L276 IsEmpty]: Start isEmpty. Operand 16108 states and 27076 transitions. [2020-10-14 08:16:02,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-14 08:16:02,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:16:02,730 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] [2020-10-14 08:16:02,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:16:02,731 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:16:02,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:16:02,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1863852500, now seen corresponding path program 1 times [2020-10-14 08:16:02,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:16:02,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964043333] [2020-10-14 08:16:02,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:16:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:02,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:03,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:03,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:04,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:04,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:04,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:05,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:05,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:07,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:07,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-14 08:16:07,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:16:07,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 08:16:07,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:07,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:16:07,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:16:07,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 228 [2020-10-14 08:16:07,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:08,609 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:16:08,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:16:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:08,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:08,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:08,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:08,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:08,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:16:08,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:08,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:08,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:08,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:16:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:08,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:08,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:08,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 08:16:08,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:08,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-14 08:16:08,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:08,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:08,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:16:08,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:08,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 08:16:08,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-14 08:16:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:09,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:09,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:09,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-14 08:16:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:16:09,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:16:09,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:16:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:09,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 08:16:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:16:09,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:16:09,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:16:09,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-14 08:16:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:16:09,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:16:09,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:16:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:16:09,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-14 08:16:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:16:09,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:16:09,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:09,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:16:09,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:09,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-10-14 08:16:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:16:09,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:16:09,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:16:09,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:09,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 08:16:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:09,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:09,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:09,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:16:09,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:09,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:16:09,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964043333] [2020-10-14 08:16:09,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:16:09,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:16:09,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431924622] [2020-10-14 08:16:09,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:16:09,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:16:09,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:16:09,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:16:09,445 INFO L87 Difference]: Start difference. First operand 16108 states and 27076 transitions. Second operand 11 states. [2020-10-14 08:16:10,170 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-14 08:16:10,930 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-14 08:16:11,938 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-14 08:16:12,694 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:16:30,469 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:16:30,941 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:16:31,337 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:16:32,173 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:16:32,757 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:16:33,815 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:16:34,408 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:16:35,600 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:16:36,005 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:16:36,879 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:16:37,680 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:16:39,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:16:39,410 INFO L93 Difference]: Finished difference Result 53526 states and 89964 transitions. [2020-10-14 08:16:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:16:39,412 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 258 [2020-10-14 08:16:39,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:16:39,518 INFO L225 Difference]: With dead ends: 53526 [2020-10-14 08:16:39,518 INFO L226 Difference]: Without dead ends: 38013 [2020-10-14 08:16:39,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:16:39,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38013 states. [2020-10-14 08:16:44,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38013 to 34265. [2020-10-14 08:16:44,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34265 states. [2020-10-14 08:16:44,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34265 states to 34265 states and 57188 transitions. [2020-10-14 08:16:44,095 INFO L78 Accepts]: Start accepts. Automaton has 34265 states and 57188 transitions. Word has length 258 [2020-10-14 08:16:44,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:16:44,096 INFO L479 AbstractCegarLoop]: Abstraction has 34265 states and 57188 transitions. [2020-10-14 08:16:44,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:16:44,096 INFO L276 IsEmpty]: Start isEmpty. Operand 34265 states and 57188 transitions. [2020-10-14 08:16:44,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-14 08:16:44,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:16:44,155 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] [2020-10-14 08:16:44,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:16:44,155 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:16:44,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:16:44,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1841750377, now seen corresponding path program 1 times [2020-10-14 08:16:44,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:16:44,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244696489] [2020-10-14 08:16:44,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:16:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:45,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:46,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:46,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking...