/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_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:00:16,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:00:16,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:00:16,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:00:16,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:00:16,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:00:16,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:00:16,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:00:16,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:00:16,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:00:16,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:00:16,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:00:16,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:00:16,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:00:16,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:00:16,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:00:16,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:00:16,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:00:16,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:00:16,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:00:16,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:00:16,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:00:16,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:00:16,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:00:16,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:00:16,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:00:16,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:00:16,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:00:16,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:00:16,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:00:16,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:00:16,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:00:16,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:00:16,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:00:16,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:00:16,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:00:16,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:00:16,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:00:16,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:00:16,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:00:16,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:00:16,555 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 08:00:16,589 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:00:16,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:00:16,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:00:16,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:00:16,591 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:00:16,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:00:16,591 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:00:16,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:00:16,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:00:16,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:00:16,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:00:16,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:00:16,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:00:16,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:00:16,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:00:16,593 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:00:16,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:00:16,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:00:16,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:00:16,594 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:00:16,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:00:16,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:00:16,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:00:16,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:00:16,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:00:16,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:00:16,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:00:16,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:00:16,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:00:16,595 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 08:00:16,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:00:16,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:00:16,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:00:16,935 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:00:16,935 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:00:16,936 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c [2020-10-14 08:00:16,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d83fd881/49cc31145cf64812b9803a633f39c2d4/FLAG386ab434d [2020-10-14 08:00:17,477 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:00:17,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c [2020-10-14 08:00:17,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d83fd881/49cc31145cf64812b9803a633f39c2d4/FLAG386ab434d [2020-10-14 08:00:17,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d83fd881/49cc31145cf64812b9803a633f39c2d4 [2020-10-14 08:00:17,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:00:17,800 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:00:17,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:00:17,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:00:17,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:00:17,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e42023b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17, skipping insertion in model container [2020-10-14 08:00:17,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:00:17,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:00:18,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:00:18,194 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:00:18,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:00:18,379 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:00:18,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18 WrapperNode [2020-10-14 08:00:18,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:00:18,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:00:18,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:00:18,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:00:18,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:00:18,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:00:18,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:00:18,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:00:18,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (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 08:00:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:00:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:00:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:00:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:00:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:00:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:00:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:00:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:00:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:00:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:00:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:00:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:00:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:00:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:00:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:00:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:00:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:00:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:00:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:00:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:00:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:00:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:00:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:00:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:00:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:00:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:00:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:00:19,080 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:00:19,080 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:00:19,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:00:19 BoogieIcfgContainer [2020-10-14 08:00:19,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:00:19,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:00:19,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:00:19,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:00:19,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:00:17" (1/3) ... [2020-10-14 08:00:19,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b9e130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:00:19, skipping insertion in model container [2020-10-14 08:00:19,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (2/3) ... [2020-10-14 08:00:19,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b9e130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:00:19, skipping insertion in model container [2020-10-14 08:00:19,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:00:19" (3/3) ... [2020-10-14 08:00:19,094 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c [2020-10-14 08:00:19,105 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:00:19,113 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:00:19,128 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:00:19,154 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:00:19,155 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:00:19,155 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:00:19,155 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:00:19,155 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:00:19,156 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:00:19,156 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:00:19,156 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:00:19,178 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-10-14 08:00:19,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 08:00:19,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:19,190 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] [2020-10-14 08:00:19,190 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:19,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:19,197 INFO L82 PathProgramCache]: Analyzing trace with hash 115152640, now seen corresponding path program 1 times [2020-10-14 08:00:19,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:19,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170900882] [2020-10-14 08:00:19,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:19,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:19,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:19,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:00:19,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:19,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-14 08:00:19,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:19,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:19,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:19,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 08:00:19,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:19,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:00:19,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:19,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:19,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:19,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:19,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:19,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:19,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:19,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:19,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:20,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:20,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:20,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 08:00:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:20,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:20,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:00:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 08:00:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:20,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:20,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:20,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 08:00:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:20,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:20,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 08:00:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:20,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:20,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:20,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 08:00:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:20,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:20,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,183 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 08:00:20,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170900882] [2020-10-14 08:00:20,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:20,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:00:20,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268731185] [2020-10-14 08:00:20,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:00:20,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:20,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:00:20,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:00:20,211 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 6 states. [2020-10-14 08:00:20,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:20,826 INFO L93 Difference]: Finished difference Result 189 states and 275 transitions. [2020-10-14 08:00:20,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 08:00:20,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-10-14 08:00:20,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:20,841 INFO L225 Difference]: With dead ends: 189 [2020-10-14 08:00:20,842 INFO L226 Difference]: Without dead ends: 110 [2020-10-14 08:00:20,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:20,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-14 08:00:20,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2020-10-14 08:00:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-14 08:00:20,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 154 transitions. [2020-10-14 08:00:20,904 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 154 transitions. Word has length 54 [2020-10-14 08:00:20,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:20,905 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 154 transitions. [2020-10-14 08:00:20,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:00:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 154 transitions. [2020-10-14 08:00:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 08:00:20,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:20,907 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] [2020-10-14 08:00:20,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:00:20,908 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:20,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:20,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1730214526, now seen corresponding path program 1 times [2020-10-14 08:00:20,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:20,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744710692] [2020-10-14 08:00:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:21,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 08:00:21,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:21,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-10-14 08:00:21,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:21,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:00:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:00:21,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:21,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:21,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:21,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:21,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:21,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:00:21,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:21,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:21,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:21,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:21,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:21,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:21,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:21,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:21,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:21,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:21,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:00:21,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:21,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:21,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:21,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:21,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:21,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:21,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 08:00:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:21,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:21,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:21,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:21,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:21,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:21,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:21,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:21,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:00:21,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:21,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:21,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 08:00:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:21,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:21,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:21,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:21,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:00:21,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:21,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:21,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:21,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:21,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:00:21,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 08:00:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:21,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:21,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:21,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:21,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:21,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:21,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:21,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:21,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:21,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 08:00:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:21,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:21,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:21,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:21,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:21,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:21,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:21,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:21,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 08:00:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:21,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:21,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:21,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:21,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:21,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:21,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:21,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:21,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:21,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:21,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:21,829 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 08:00:21,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744710692] [2020-10-14 08:00:21,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:21,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:00:21,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587751875] [2020-10-14 08:00:21,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:00:21,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:21,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:00:21,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:00:21,835 INFO L87 Difference]: Start difference. First operand 106 states and 154 transitions. Second operand 12 states. [2020-10-14 08:00:22,043 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-14 08:00:22,216 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-14 08:00:23,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:23,402 INFO L93 Difference]: Finished difference Result 187 states and 267 transitions. [2020-10-14 08:00:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:00:23,403 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-10-14 08:00:23,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:23,405 INFO L225 Difference]: With dead ends: 187 [2020-10-14 08:00:23,405 INFO L226 Difference]: Without dead ends: 110 [2020-10-14 08:00:23,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:00:23,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-14 08:00:23,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2020-10-14 08:00:23,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-14 08:00:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 137 transitions. [2020-10-14 08:00:23,424 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 137 transitions. Word has length 54 [2020-10-14 08:00:23,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:23,425 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 137 transitions. [2020-10-14 08:00:23,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:00:23,425 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 137 transitions. [2020-10-14 08:00:23,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:00:23,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:23,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:23,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:00:23,429 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:23,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:23,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1333801356, now seen corresponding path program 1 times [2020-10-14 08:00:23,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:23,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065947110] [2020-10-14 08:00:23,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:23,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:24,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:24,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 08:00:24,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:00:24,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1515 [2020-10-14 08:00:24,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:24,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:24,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:24,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 08:00:24,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:00:24,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:25,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:25,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:25,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:25,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:25,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:00:25,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:25,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:25,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 08:00:25,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:25,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:25,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:25,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:25,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:25,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:25,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:25,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:00:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:25,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:25,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:25,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:25,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:25,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 08:00:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:25,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:00:25,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:25,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 08:00:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:25,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:25,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:25,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:25,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:25,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:25,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:25,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:25,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:25,290 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 08:00:25,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065947110] [2020-10-14 08:00:25,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:25,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:25,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282895947] [2020-10-14 08:00:25,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:25,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:25,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:25,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:25,293 INFO L87 Difference]: Start difference. First operand 106 states and 137 transitions. Second operand 9 states. [2020-10-14 08:00:26,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:26,475 INFO L93 Difference]: Finished difference Result 243 states and 330 transitions. [2020-10-14 08:00:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:26,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 08:00:26,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:26,481 INFO L225 Difference]: With dead ends: 243 [2020-10-14 08:00:26,481 INFO L226 Difference]: Without dead ends: 172 [2020-10-14 08:00:26,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:26,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-14 08:00:26,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 163. [2020-10-14 08:00:26,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-14 08:00:26,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 218 transitions. [2020-10-14 08:00:26,515 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 218 transitions. Word has length 70 [2020-10-14 08:00:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:26,516 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 218 transitions. [2020-10-14 08:00:26,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 218 transitions. [2020-10-14 08:00:26,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:00:26,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:26,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:26,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:00:26,528 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:26,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:26,531 INFO L82 PathProgramCache]: Analyzing trace with hash 178922503, now seen corresponding path program 1 times [2020-10-14 08:00:26,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:26,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378765295] [2020-10-14 08:00:26,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:26,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:26,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 08:00:27,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:27,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 933 [2020-10-14 08:00:27,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:27,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 08:00:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 08:00:27,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:27,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:27,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:27,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:27,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:27,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:27,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:27,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:00:27,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:27,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:27,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:27,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:27,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:27,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:27,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:27,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:27,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:27,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:00:27,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:27,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:00:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:27,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:00:27,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:27,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:27,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 08:00:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:27,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:27,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:27,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:27,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 08:00:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:27,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:27,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:27,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:27,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:27,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:27,872 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 08:00:27,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378765295] [2020-10-14 08:00:27,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:27,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:27,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889695378] [2020-10-14 08:00:27,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:27,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:27,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:27,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:27,877 INFO L87 Difference]: Start difference. First operand 163 states and 218 transitions. Second operand 9 states. [2020-10-14 08:00:28,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:28,928 INFO L93 Difference]: Finished difference Result 407 states and 560 transitions. [2020-10-14 08:00:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:28,930 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:00:28,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:28,935 INFO L225 Difference]: With dead ends: 407 [2020-10-14 08:00:28,936 INFO L226 Difference]: Without dead ends: 279 [2020-10-14 08:00:28,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-14 08:00:28,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 265. [2020-10-14 08:00:28,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-14 08:00:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 360 transitions. [2020-10-14 08:00:28,991 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 360 transitions. Word has length 71 [2020-10-14 08:00:28,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:28,991 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 360 transitions. [2020-10-14 08:00:28,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:28,992 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 360 transitions. [2020-10-14 08:00:28,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 08:00:28,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:28,993 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] [2020-10-14 08:00:28,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:00:28,994 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:28,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:28,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1916937104, now seen corresponding path program 1 times [2020-10-14 08:00:28,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:28,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849359947] [2020-10-14 08:00:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:29,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:29,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:30,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:30,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 08:00:30,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:30,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1266 [2020-10-14 08:00:30,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:30,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 08:00:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 08:00:30,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:30,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:30,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:30,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:30,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:30,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:30,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:00:30,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:30,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:30,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:30,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:30,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:30,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:30,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:30,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:30,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:30,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:00:30,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:30,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:30,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:00:30,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:30,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:30,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:30,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:30,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:30,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:30,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:30,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:30,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:30,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:30,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:30,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:30,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:30,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:30,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:30,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:30,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:30,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:30,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:00:30,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:30,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:30,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:00:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:30,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:30,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:00:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:30,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:30,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:30,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:30,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:30,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:00:30,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:30,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:00:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:30,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:30,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 08:00:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:30,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:30,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:30,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:30,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:30,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:30,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:30,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:00:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:30,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:30,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:00:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:30,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:30,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:30,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:30,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:30,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:30,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:30,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:30,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:30,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:30,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:30,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:30,710 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 08:00:30,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849359947] [2020-10-14 08:00:30,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:30,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:00:30,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486829122] [2020-10-14 08:00:30,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:00:30,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:30,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:00:30,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:00:30,714 INFO L87 Difference]: Start difference. First operand 265 states and 360 transitions. Second operand 12 states. [2020-10-14 08:00:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:36,083 INFO L93 Difference]: Finished difference Result 1798 states and 2560 transitions. [2020-10-14 08:00:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-14 08:00:36,083 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-10-14 08:00:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:36,102 INFO L225 Difference]: With dead ends: 1798 [2020-10-14 08:00:36,102 INFO L226 Difference]: Without dead ends: 1568 [2020-10-14 08:00:36,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=594, Invalid=2828, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 08:00:36,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2020-10-14 08:00:36,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1501. [2020-10-14 08:00:36,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1501 states. [2020-10-14 08:00:36,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2006 transitions. [2020-10-14 08:00:36,264 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2006 transitions. Word has length 72 [2020-10-14 08:00:36,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:36,265 INFO L479 AbstractCegarLoop]: Abstraction has 1501 states and 2006 transitions. [2020-10-14 08:00:36,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:00:36,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2006 transitions. [2020-10-14 08:00:36,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 08:00:36,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:36,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:36,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:00:36,268 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:36,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:36,268 INFO L82 PathProgramCache]: Analyzing trace with hash 936758342, now seen corresponding path program 1 times [2020-10-14 08:00:36,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:36,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26979491] [2020-10-14 08:00:36,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:36,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:36,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:36,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:37,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:37,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 08:00:37,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:00:37,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1301 [2020-10-14 08:00:37,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:37,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 08:00:37,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:37,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:37,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:37,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:37,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:37,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:37,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:00:37,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:37,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:37,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:37,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:37,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:37,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:37,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:37,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:37,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:37,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:37,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:37,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:00:37,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:37,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:37,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:37,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:37,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:00:37,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:37,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:37,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:37,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:37,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:37,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:37,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:37,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:37,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:37,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:37,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:37,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:37,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:37,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:37,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:37,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:37,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:00:37,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:37,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:37,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:37,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:37,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:37,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:00:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:37,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:37,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:37,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:37,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:37,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:37,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:37,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:37,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:37,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:37,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:37,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:37,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:37,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:37,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:37,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:37,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:37,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:37,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:37,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:37,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:37,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:37,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:37,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:37,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:37,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:37,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:37,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:37,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:37,947 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 08:00:37,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26979491] [2020-10-14 08:00:37,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:37,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:37,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94470109] [2020-10-14 08:00:37,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:37,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:37,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:37,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:37,950 INFO L87 Difference]: Start difference. First operand 1501 states and 2006 transitions. Second operand 9 states. [2020-10-14 08:00:39,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:39,192 INFO L93 Difference]: Finished difference Result 4563 states and 6166 transitions. [2020-10-14 08:00:39,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:39,193 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2020-10-14 08:00:39,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:39,216 INFO L225 Difference]: With dead ends: 4563 [2020-10-14 08:00:39,216 INFO L226 Difference]: Without dead ends: 3110 [2020-10-14 08:00:39,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:39,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2020-10-14 08:00:39,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 2973. [2020-10-14 08:00:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2973 states. [2020-10-14 08:00:39,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2973 states to 2973 states and 3941 transitions. [2020-10-14 08:00:39,462 INFO L78 Accepts]: Start accepts. Automaton has 2973 states and 3941 transitions. Word has length 73 [2020-10-14 08:00:39,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:39,463 INFO L479 AbstractCegarLoop]: Abstraction has 2973 states and 3941 transitions. [2020-10-14 08:00:39,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:39,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2973 states and 3941 transitions. [2020-10-14 08:00:39,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 08:00:39,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:39,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:39,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:00:39,466 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:39,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:39,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1307224956, now seen corresponding path program 1 times [2020-10-14 08:00:39,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:39,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259137531] [2020-10-14 08:00:39,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:39,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:39,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 08:00:40,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:40,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 605 [2020-10-14 08:00:40,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 08:00:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 08:00:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:40,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:40,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:40,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:40,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:00:40,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:40,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:40,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:40,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:40,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:40,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:40,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:00:40,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:00:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:40,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:40,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:40,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:40,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:40,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:40,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:40,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:40,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:40,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:40,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:40,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:40,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:40,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,371 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 08:00:40,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259137531] [2020-10-14 08:00:40,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:40,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:40,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837899409] [2020-10-14 08:00:40,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:40,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:40,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:40,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:40,375 INFO L87 Difference]: Start difference. First operand 2973 states and 3941 transitions. Second operand 9 states. [2020-10-14 08:00:41,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:41,873 INFO L93 Difference]: Finished difference Result 5751 states and 7729 transitions. [2020-10-14 08:00:41,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:00:41,874 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2020-10-14 08:00:41,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:41,900 INFO L225 Difference]: With dead ends: 5751 [2020-10-14 08:00:41,900 INFO L226 Difference]: Without dead ends: 4097 [2020-10-14 08:00:41,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:00:41,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4097 states. [2020-10-14 08:00:42,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4097 to 4033. [2020-10-14 08:00:42,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4033 states. [2020-10-14 08:00:42,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 5320 transitions. [2020-10-14 08:00:42,206 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 5320 transitions. Word has length 73 [2020-10-14 08:00:42,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:42,206 INFO L479 AbstractCegarLoop]: Abstraction has 4033 states and 5320 transitions. [2020-10-14 08:00:42,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:42,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 5320 transitions. [2020-10-14 08:00:42,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 08:00:42,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:42,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:42,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:00:42,208 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:42,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:42,209 INFO L82 PathProgramCache]: Analyzing trace with hash -772820588, now seen corresponding path program 1 times [2020-10-14 08:00:42,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:42,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146395162] [2020-10-14 08:00:42,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:42,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:42,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 08:00:42,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:42,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-14 08:00:42,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:42,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:42,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:00:42,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:00:42,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:00:42,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:42,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:42,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:42,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:42,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:42,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:42,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:42,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:42,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:42,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:42,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:42,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:42,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:42,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:42,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:42,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:42,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:00:42,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:42,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 08:00:42,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:42,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:42,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:42,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:42,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:42,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:42,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:42,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:42,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:42,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:42,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:42,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:42,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:42,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:00:42,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:42,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:42,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:42,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:42,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:42,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:42,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:00:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:42,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:42,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:42,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:42,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:42,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:42,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:42,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:42,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:42,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:42,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:42,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:42,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:42,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:42,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:42,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:42,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:42,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:42,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:42,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:42,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:42,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:42,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:42,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:42,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:00:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:00:42,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:42,869 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 08:00:42,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146395162] [2020-10-14 08:00:42,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:42,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:00:42,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958191325] [2020-10-14 08:00:42,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:00:42,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:42,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:00:42,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:00:42,872 INFO L87 Difference]: Start difference. First operand 4033 states and 5320 transitions. Second operand 13 states. [2020-10-14 08:00:47,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:47,593 INFO L93 Difference]: Finished difference Result 25157 states and 33797 transitions. [2020-10-14 08:00:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-14 08:00:47,594 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 73 [2020-10-14 08:00:47,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:47,752 INFO L225 Difference]: With dead ends: 25157 [2020-10-14 08:00:47,752 INFO L226 Difference]: Without dead ends: 21211 [2020-10-14 08:00:47,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=577, Invalid=1973, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 08:00:47,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21211 states. [2020-10-14 08:00:49,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21211 to 20673. [2020-10-14 08:00:49,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20673 states. [2020-10-14 08:00:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20673 states to 20673 states and 27428 transitions. [2020-10-14 08:00:49,308 INFO L78 Accepts]: Start accepts. Automaton has 20673 states and 27428 transitions. Word has length 73 [2020-10-14 08:00:49,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:49,308 INFO L479 AbstractCegarLoop]: Abstraction has 20673 states and 27428 transitions. [2020-10-14 08:00:49,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:00:49,308 INFO L276 IsEmpty]: Start isEmpty. Operand 20673 states and 27428 transitions. [2020-10-14 08:00:49,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 08:00:49,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:49,310 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] [2020-10-14 08:00:49,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:00:49,310 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:49,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:49,310 INFO L82 PathProgramCache]: Analyzing trace with hash -45090842, now seen corresponding path program 1 times [2020-10-14 08:00:49,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:49,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291879075] [2020-10-14 08:00:49,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:49,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:50,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:50,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 08:00:50,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:50,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-14 08:00:50,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:50,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:00:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 08:00:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:00:50,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:50,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:50,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:50,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:50,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:50,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:50,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:00:50,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:50,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:50,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:50,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:50,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:00:50,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:50,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:50,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:50,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:50,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:50,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:50,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:50,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:50,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:50,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:50,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:50,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:50,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:50,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:50,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:00:50,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:50,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:50,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:50,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:50,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:50,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:50,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:50,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:50,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:50,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:50,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:50,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:50,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:50,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:50,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:00:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:50,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:50,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:50,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:50,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:50,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:50,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:50,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:50,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:50,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:50,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:50,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:50,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:50,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:50,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:50,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:50,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:50,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:50,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:50,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:50,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:50,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:50,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:50,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:50,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:00:50,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:50,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:00:50,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:50,449 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 08:00:50,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291879075] [2020-10-14 08:00:50,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:50,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:00:50,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663700561] [2020-10-14 08:00:50,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:00:50,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:50,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:00:50,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:00:50,454 INFO L87 Difference]: Start difference. First operand 20673 states and 27428 transitions. Second operand 12 states. [2020-10-14 08:00:52,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:52,593 INFO L93 Difference]: Finished difference Result 24521 states and 33469 transitions. [2020-10-14 08:00:52,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:52,593 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 74 [2020-10-14 08:00:52,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:52,704 INFO L225 Difference]: With dead ends: 24521 [2020-10-14 08:00:52,704 INFO L226 Difference]: Without dead ends: 24519 [2020-10-14 08:00:52,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:00:52,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24519 states. [2020-10-14 08:00:54,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24519 to 22401. [2020-10-14 08:00:54,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22401 states. [2020-10-14 08:00:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22401 states to 22401 states and 29088 transitions. [2020-10-14 08:00:54,227 INFO L78 Accepts]: Start accepts. Automaton has 22401 states and 29088 transitions. Word has length 74 [2020-10-14 08:00:54,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:54,227 INFO L479 AbstractCegarLoop]: Abstraction has 22401 states and 29088 transitions. [2020-10-14 08:00:54,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:00:54,228 INFO L276 IsEmpty]: Start isEmpty. Operand 22401 states and 29088 transitions. [2020-10-14 08:00:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 08:00:54,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:54,238 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:54,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:00:54,238 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:54,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:54,239 INFO L82 PathProgramCache]: Analyzing trace with hash 451363232, now seen corresponding path program 1 times [2020-10-14 08:00:54,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:54,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766834176] [2020-10-14 08:00:54,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:54,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:54,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:55,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:55,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 08:00:55,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:55,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1570 [2020-10-14 08:00:55,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:55,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:55,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:00:55,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:55,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 08:00:55,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:55,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:55,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:55,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:55,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:55,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:55,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:55,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:55,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:55,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:55,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:55,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:55,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:55,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:55,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:55,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:55,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:55,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:55,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:00:55,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:55,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:00:55,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:55,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:00:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:55,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:55,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:55,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:55,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:55,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:55,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:55,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:56,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:00:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:56,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:56,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:56,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:00:56,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:56,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:56,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:56,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:56,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:56,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:00:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:56,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:56,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:56,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:56,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:56,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:56,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:00:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:56,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:56,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:56,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:56,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:56,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:56,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:56,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:56,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:56,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:00:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:56,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:56,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:56,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:56,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:56,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:56,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:56,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:56,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:56,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:56,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:56,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:00:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:56,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:56,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:56,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:56,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:56,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:56,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:56,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:56,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:00:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:56,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:56,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:56,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:56,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:00:56,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:56,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:00:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:00:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:56,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:56,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:56,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:56,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:56,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:56,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:56,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:56,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:56,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:56,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 08:00:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:56,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:56,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:56,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:56,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:56,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:56,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:56,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:56,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:56,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:56,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:56,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 08:00:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:56,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:56,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:56,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:56,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:56,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:56,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:56,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:56,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:56,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:00:56,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:56,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:56,225 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 08:00:56,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766834176] [2020-10-14 08:00:56,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:00:56,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 08:00:56,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344014930] [2020-10-14 08:00:56,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:00:56,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:56,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:00:56,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:00:56,227 INFO L87 Difference]: Start difference. First operand 22401 states and 29088 transitions. Second operand 11 states. [2020-10-14 08:01:00,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:00,028 INFO L93 Difference]: Finished difference Result 62331 states and 82118 transitions. [2020-10-14 08:01:00,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 08:01:00,028 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-10-14 08:01:00,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:00,211 INFO L225 Difference]: With dead ends: 62331 [2020-10-14 08:01:00,212 INFO L226 Difference]: Without dead ends: 44817 [2020-10-14 08:01:00,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=185, Invalid=627, Unknown=0, NotChecked=0, Total=812 [2020-10-14 08:01:00,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44817 states. [2020-10-14 08:01:03,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44817 to 43713. [2020-10-14 08:01:03,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43713 states. [2020-10-14 08:01:03,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43713 states to 43713 states and 56972 transitions. [2020-10-14 08:01:03,755 INFO L78 Accepts]: Start accepts. Automaton has 43713 states and 56972 transitions. Word has length 113 [2020-10-14 08:01:03,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:03,756 INFO L479 AbstractCegarLoop]: Abstraction has 43713 states and 56972 transitions. [2020-10-14 08:01:03,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:01:03,756 INFO L276 IsEmpty]: Start isEmpty. Operand 43713 states and 56972 transitions. [2020-10-14 08:01:03,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 08:01:03,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:03,765 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:03,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:01:03,765 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:03,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:03,766 INFO L82 PathProgramCache]: Analyzing trace with hash 80318565, now seen corresponding path program 1 times [2020-10-14 08:01:03,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:03,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274395677] [2020-10-14 08:01:03,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:03,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:03,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:04,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:04,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:04,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:08,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:08,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 08:01:08,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:01:08,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:01:08,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:08,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:08,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:08,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 08:01:08,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 08:01:08,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:08,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:08,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:08,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:08,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:08,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:08,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:08,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:08,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:08,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:08,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:08,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:08,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:08,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:08,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:08,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:08,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:08,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:08,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:08,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:08,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:08,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:08,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:08,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:08,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:01:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:08,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:08,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:08,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:08,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:08,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:01:08,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:08,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:08,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:08,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:08,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:01:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:08,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:08,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:08,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:08,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:08,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:08,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:08,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:08,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:08,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:08,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:08,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:01:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:08,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:08,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:08,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:08,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:08,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:08,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:08,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:08,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:01:08,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:09,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:01:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:09,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:09,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:09,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:09,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:09,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:09,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:09,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:09,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:09,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:01:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:09,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:09,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:09,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:09,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:09,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:09,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:09,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:09,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:09,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:09,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:09,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:09,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:01:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:09,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:09,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:09,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:09,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:09,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:09,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:09,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:09,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:09,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:09,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:01:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:09,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:09,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:09,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:09,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:09,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:09,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:09,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:09,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:09,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:09,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:01:09,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:09,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 08:01:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:09,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:09,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:09,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:01:09,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:09,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:09,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:09,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:01:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:09,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:09,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:01:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:09,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:09,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:09,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:09,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:09,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:09,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:09,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:09,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:09,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 08:01:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:09,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:09,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:09,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:09,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:09,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:01:09,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:09,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:09,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:09,124 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 08:01:09,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274395677] [2020-10-14 08:01:09,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:09,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 08:01:09,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024494211] [2020-10-14 08:01:09,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:01:09,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:09,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:01:09,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:01:09,126 INFO L87 Difference]: Start difference. First operand 43713 states and 56972 transitions. Second operand 9 states. [2020-10-14 08:01:11,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:11,389 INFO L93 Difference]: Finished difference Result 76148 states and 99050 transitions. [2020-10-14 08:01:11,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:01:11,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2020-10-14 08:01:11,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:11,502 INFO L225 Difference]: With dead ends: 76148 [2020-10-14 08:01:11,502 INFO L226 Difference]: Without dead ends: 32522 [2020-10-14 08:01:11,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:01:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32522 states. [2020-10-14 08:01:13,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32522 to 30505. [2020-10-14 08:01:13,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30505 states. [2020-10-14 08:01:13,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30505 states to 30505 states and 38228 transitions. [2020-10-14 08:01:13,386 INFO L78 Accepts]: Start accepts. Automaton has 30505 states and 38228 transitions. Word has length 113 [2020-10-14 08:01:13,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:13,386 INFO L479 AbstractCegarLoop]: Abstraction has 30505 states and 38228 transitions. [2020-10-14 08:01:13,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:01:13,386 INFO L276 IsEmpty]: Start isEmpty. Operand 30505 states and 38228 transitions. [2020-10-14 08:01:13,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 08:01:13,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:13,392 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:13,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:01:13,393 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:13,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:13,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1847857171, now seen corresponding path program 1 times [2020-10-14 08:01:13,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:13,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537789253] [2020-10-14 08:01:13,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:14,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:14,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:14,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:15,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:18,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:19,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:19,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 08:01:19,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:01:19,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:01:19,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:19,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:01:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:01:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 08:01:19,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:19,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:19,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:19,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:19,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:19,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:19,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:19,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:19,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:19,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:19,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:19,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:19,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:19,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:19,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:19,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:19,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:19,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:19,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:01:19,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:19,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:19,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:19,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:19,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:01:19,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:19,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:01:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:19,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:19,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:19,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:19,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:19,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:19,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:19,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:19,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:19,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:19,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:01:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:19,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:19,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:19,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:19,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:19,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 08:01:19,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:19,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:01:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:01:19,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:19,917 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 31 [2020-10-14 08:01:19,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:01:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:19,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:20,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:20,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:20,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:20,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:20,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:20,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:20,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:20,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:20,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:20,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:20,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:01:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:20,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:20,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:20,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:20,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:20,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:20,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:20,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:20,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:20,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:01:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:20,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:20,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:20,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:20,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:20,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:20,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:20,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:20,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:20,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:01:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:20,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:20,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:20,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:20,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:20,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:20,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:20,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:20,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:20,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:20,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:20,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:20,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:01:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:20,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:20,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:20,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:01:20,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:20,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:01:20,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:20,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:20,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:20,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:01:20,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:20,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 08:01:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:20,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:20,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:20,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:20,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:20,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:01:20,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:20,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:20,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:20,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:20,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:20,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:20,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:01:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:20,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:20,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:20,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:20,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:20,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:20,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:20,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:20,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:20,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 08:01:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:20,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:20,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:20,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:20,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:20,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:20,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:20,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:20,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:20,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:20,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:20,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 08:01:20,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537789253] [2020-10-14 08:01:20,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:20,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 08:01:20,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268210019] [2020-10-14 08:01:20,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:01:20,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:20,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:01:20,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:01:20,240 INFO L87 Difference]: Start difference. First operand 30505 states and 38228 transitions. Second operand 15 states. [2020-10-14 08:01:20,422 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-14 08:01:20,783 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 08:01:21,202 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-10-14 08:01:23,959 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-14 08:01:26,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:26,480 INFO L93 Difference]: Finished difference Result 102245 states and 128494 transitions. [2020-10-14 08:01:26,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 08:01:26,482 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 114 [2020-10-14 08:01:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:26,844 INFO L225 Difference]: With dead ends: 102245 [2020-10-14 08:01:26,844 INFO L226 Difference]: Without dead ends: 77048 [2020-10-14 08:01:26,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=434, Invalid=1918, Unknown=0, NotChecked=0, Total=2352 [2020-10-14 08:01:26,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77048 states. [2020-10-14 08:01:31,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77048 to 72514. [2020-10-14 08:01:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72514 states. [2020-10-14 08:01:31,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72514 states to 72514 states and 91651 transitions. [2020-10-14 08:01:31,977 INFO L78 Accepts]: Start accepts. Automaton has 72514 states and 91651 transitions. Word has length 114 [2020-10-14 08:01:31,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:31,978 INFO L479 AbstractCegarLoop]: Abstraction has 72514 states and 91651 transitions. [2020-10-14 08:01:31,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:01:31,978 INFO L276 IsEmpty]: Start isEmpty. Operand 72514 states and 91651 transitions. [2020-10-14 08:01:31,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 08:01:31,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:31,988 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:31,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:01:31,988 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:31,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:31,989 INFO L82 PathProgramCache]: Analyzing trace with hash -960634325, now seen corresponding path program 1 times [2020-10-14 08:01:31,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:31,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703684961] [2020-10-14 08:01:31,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:32,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:33,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 08:01:37,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:01:37,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:01:37,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:01:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 08:01:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 08:01:37,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:37,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:37,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:37,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:37,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:01:37,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:37,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:01:37,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:01:37,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:37,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:01:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:37,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:37,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:37,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:37,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:01:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:37,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:01:37,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:01:37,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:37,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:01:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:37,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:37,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:37,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:37,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:01:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:37,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:37,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:37,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:37,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:01:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:37,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:37,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:37,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:37,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:37,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:01:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:37,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:37,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:37,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:37,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:01:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:01:37,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:01:37,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:01:37,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:01:37,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:37,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:37,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 08:01:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:37,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:37,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:37,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:37,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:37,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:37,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:01:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:37,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:37,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:37,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:37,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:37,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:37,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 08:01:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:37,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:37,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:37,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:37,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:37,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:37,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:37,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:37,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:37,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:37,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:37,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:37,457 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 08:01:37,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703684961] [2020-10-14 08:01:37,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:37,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 08:01:37,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456605756] [2020-10-14 08:01:37,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:01:37,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:37,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:01:37,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:01:37,470 INFO L87 Difference]: Start difference. First operand 72514 states and 91651 transitions. Second operand 13 states. [2020-10-14 08:01:37,646 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-14 08:01:38,088 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-14 08:01:38,333 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-14 08:01:38,669 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-14 08:01:48,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:48,825 INFO L93 Difference]: Finished difference Result 228234 states and 286349 transitions. [2020-10-14 08:01:48,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-10-14 08:01:48,825 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 114 [2020-10-14 08:01:48,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:49,234 INFO L225 Difference]: With dead ends: 228234 [2020-10-14 08:01:49,234 INFO L226 Difference]: Without dead ends: 159575 [2020-10-14 08:01:49,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1850 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=806, Invalid=4450, Unknown=0, NotChecked=0, Total=5256 [2020-10-14 08:01:49,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159575 states. [2020-10-14 08:01:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159575 to 138291. [2020-10-14 08:01:58,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138291 states. [2020-10-14 08:01:58,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138291 states to 138291 states and 170933 transitions. [2020-10-14 08:01:58,831 INFO L78 Accepts]: Start accepts. Automaton has 138291 states and 170933 transitions. Word has length 114 [2020-10-14 08:01:58,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:58,832 INFO L479 AbstractCegarLoop]: Abstraction has 138291 states and 170933 transitions. [2020-10-14 08:01:58,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:01:58,832 INFO L276 IsEmpty]: Start isEmpty. Operand 138291 states and 170933 transitions. [2020-10-14 08:01:58,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 08:01:58,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:58,842 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:58,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:01:58,842 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:58,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:58,843 INFO L82 PathProgramCache]: Analyzing trace with hash 716535141, now seen corresponding path program 1 times [2020-10-14 08:01:58,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:58,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879383194] [2020-10-14 08:01:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:58,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:58,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:59,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:59,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:01,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 08:02:05,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:02:05,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6539 [2020-10-14 08:02:05,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:02:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:02:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 08:02:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:05,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:02:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:02:05,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:02:05,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:05,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:05,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:05,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:02:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:02:05,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:02:05,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:02:05,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:05,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:02:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:02:05,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:02:05,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:05,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:05,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:02:05,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 08:02:05,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:02:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:05,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:02:05,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:05,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:05,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:05,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:02:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:05,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 08:02:05,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:02:05,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:05,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:02:05,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:05,908 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-10-14 08:02:05,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:02:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:05,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:02:05,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:05,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:05,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:06,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:02:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:06,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:06,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:06,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:06,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:06,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:06,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:06,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:06,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:06,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:06,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:06,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:06,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:02:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:06,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:06,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:06,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:02:06,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:06,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:02:06,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:06,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:06,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:06,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:06,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:02:06,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:06,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:02:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:06,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:06,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:06,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:06,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:06,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:06,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:06,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:06,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:06,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:06,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:02:06,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:06,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:02:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:06,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:06,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:06,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:02:06,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:06,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:06,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:06,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:06,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:06,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:06,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:06,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:06,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:02:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:06,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:06,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:06,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:06,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:06,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:02:06,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:06,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:02:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:06,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:06,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 08:02:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:06,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:06,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:06,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:02:06,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:06,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:06,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:06,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:06,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:06,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:02:06,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:06,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 08:02:06,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879383194] [2020-10-14 08:02:06,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:02:06,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 08:02:06,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058872963] [2020-10-14 08:02:06,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:02:06,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:02:06,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:02:06,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:02:06,138 INFO L87 Difference]: Start difference. First operand 138291 states and 170933 transitions. Second operand 15 states. [2020-10-14 08:02:06,967 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-14 08:02:08,486 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 115 [2020-10-14 08:02:10,813 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 08:02:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:02:26,624 INFO L93 Difference]: Finished difference Result 475809 states and 591535 transitions. [2020-10-14 08:02:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 08:02:26,625 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 114 [2020-10-14 08:02:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:02:27,478 INFO L225 Difference]: With dead ends: 475809 [2020-10-14 08:02:27,478 INFO L226 Difference]: Without dead ends: 360035 [2020-10-14 08:02:27,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=479, Invalid=1971, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 08:02:27,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360035 states. [2020-10-14 08:02:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360035 to 344034. [2020-10-14 08:02:52,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344034 states. [2020-10-14 08:02:52,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344034 states to 344034 states and 428699 transitions. [2020-10-14 08:02:52,932 INFO L78 Accepts]: Start accepts. Automaton has 344034 states and 428699 transitions. Word has length 114 [2020-10-14 08:02:52,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:02:52,933 INFO L479 AbstractCegarLoop]: Abstraction has 344034 states and 428699 transitions. [2020-10-14 08:02:52,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:02:52,933 INFO L276 IsEmpty]: Start isEmpty. Operand 344034 states and 428699 transitions. [2020-10-14 08:02:52,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 08:02:52,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:02:52,951 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:52,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:02:52,951 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:02:52,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:02:52,952 INFO L82 PathProgramCache]: Analyzing trace with hash -15432285, now seen corresponding path program 1 times [2020-10-14 08:02:52,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:02:52,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489745518] [2020-10-14 08:02:52,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:02:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:52,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:53,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:53,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:53,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:54,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:57,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:57,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 08:02:57,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:02:57,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:02:57,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:57,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:57,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:02:57,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 08:02:57,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 08:02:57,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:58,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:02:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:02:58,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:58,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:58,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:58,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:58,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:58,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:02:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:02:58,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:02:58,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:58,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:58,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:02:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:02:58,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:58,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:58,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:58,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:02:58,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:58,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 08:02:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:58,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:58,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:58,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:58,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 08:02:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:58,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:02:58,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:02:58,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:58,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:02:58,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:58,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:02:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:58,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:58,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:58,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:58,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:02:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:58,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:02:58,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:58,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:58,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:58,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:02:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:02:58,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:02:58,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:02:58,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:58,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 08:02:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:58,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:58,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:58,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:58,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:02:58,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:58,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:02:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:02:58,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:02:58,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:02:58,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:02:58,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:58,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:58,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:02:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:58,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:58,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:02:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:58,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:58,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 08:02:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:58,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:58,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:58,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:02:58,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:58,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:58,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:58,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:58,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:02:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:58,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 08:02:58,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489745518] [2020-10-14 08:02:58,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:02:58,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 08:02:58,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197258170] [2020-10-14 08:02:58,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:02:58,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:02:58,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:02:58,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:02:58,385 INFO L87 Difference]: Start difference. First operand 344034 states and 428699 transitions. Second operand 13 states. [2020-10-14 08:02:59,153 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-14 08:02:59,510 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87