/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:11:06,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:11:06,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:11:06,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:11:06,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:11:06,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:11:06,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:11:06,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:11:06,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:11:06,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:11:06,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:11:06,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:11:06,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:11:06,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:11:06,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:11:06,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:11:06,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:11:06,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:11:06,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:11:06,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:11:06,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:11:06,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:11:06,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:11:06,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:11:06,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:11:06,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:11:06,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:11:06,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:11:06,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:11:06,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:11:06,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:11:06,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:11:06,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:11:06,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:11:06,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:11:06,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:11:06,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:11:06,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:11:06,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:11:06,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:11:06,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:11:06,926 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 08:11:06,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:11:06,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:11:06,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:11:06,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:11:06,964 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:11:06,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:11:06,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:11:06,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:11:06,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:11:06,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:11:06,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:11:06,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:11:06,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:11:06,967 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:11:06,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:11:06,968 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:11:06,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:11:06,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:11:06,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:11:06,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:11:06,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:11:06,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:11:06,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:11:06,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:11:06,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:11:06,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:11:06,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:11:06,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:11:06,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:11:06,971 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 08:11:07,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:11:07,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:11:07,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:11:07,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:11:07,312 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:11:07,312 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c [2020-10-14 08:11:07,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3f6ecf45/b735a1b167d846fbb0a841ff2b3e41a0/FLAG50d690de8 [2020-10-14 08:11:07,975 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:11:07,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c [2020-10-14 08:11:08,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3f6ecf45/b735a1b167d846fbb0a841ff2b3e41a0/FLAG50d690de8 [2020-10-14 08:11:08,230 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3f6ecf45/b735a1b167d846fbb0a841ff2b3e41a0 [2020-10-14 08:11:08,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:11:08,241 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:11:08,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:11:08,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:11:08,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:11:08,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:11:08" (1/1) ... [2020-10-14 08:11:08,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e7b983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:08, skipping insertion in model container [2020-10-14 08:11:08,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:11:08" (1/1) ... [2020-10-14 08:11:08,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:11:08,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:11:08,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:11:08,970 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:11:09,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:11:09,176 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:11:09,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:09 WrapperNode [2020-10-14 08:11:09,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:11:09,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:11:09,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:11:09,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:11:09,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:09" (1/1) ... [2020-10-14 08:11:09,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:09" (1/1) ... [2020-10-14 08:11:09,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:09" (1/1) ... [2020-10-14 08:11:09,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:09" (1/1) ... [2020-10-14 08:11:09,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:09" (1/1) ... [2020-10-14 08:11:09,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:09" (1/1) ... [2020-10-14 08:11:09,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:09" (1/1) ... [2020-10-14 08:11:09,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:11:09,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:11:09,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:11:09,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:11:09,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:09" (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 08:11:09,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:11:09,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:11:09,412 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:11:09,412 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:11:09,412 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:11:09,413 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:11:09,413 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 08:11:09,413 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-14 08:11:09,413 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:11:09,413 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:11:09,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:11:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:11:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:11:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:11:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:11:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:11:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:11:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:11:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:11:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:11:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:11:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:11:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:11:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:11:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 08:11:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:11:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:11:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:11:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:11:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:11:11,534 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:11:11,534 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:11:11,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:11:11 BoogieIcfgContainer [2020-10-14 08:11:11,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:11:11,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:11:11,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:11:11,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:11:11,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:11:08" (1/3) ... [2020-10-14 08:11:11,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e808529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:11:11, skipping insertion in model container [2020-10-14 08:11:11,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:11:09" (2/3) ... [2020-10-14 08:11:11,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e808529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:11:11, skipping insertion in model container [2020-10-14 08:11:11,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:11:11" (3/3) ... [2020-10-14 08:11:11,560 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c [2020-10-14 08:11:11,573 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:11:11,584 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:11:11,601 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:11:11,636 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:11:11,637 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:11:11,637 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:11:11,637 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:11:11,637 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:11:11,638 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:11:11,638 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:11:11,639 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:11:11,679 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states. [2020-10-14 08:11:11,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-14 08:11:11,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:11,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:11:11,717 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:11,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:11,723 INFO L82 PathProgramCache]: Analyzing trace with hash 634524836, now seen corresponding path program 1 times [2020-10-14 08:11:11,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:11,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610384231] [2020-10-14 08:11:11,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:12,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:13,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:13,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 08:11:13,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:13,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-10-14 08:11:13,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:13,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:13,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:13,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 08:11:13,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:13,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:11:14,170 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:11:14,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:14,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:14,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:14,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:14,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:14,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 08:11:14,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:14,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:14,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:14,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:14,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:14,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:14,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:11:14,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:14,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 08:11:14,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:14,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:14,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:14,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 08:11:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:14,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:14,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:14,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:14,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:14,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:14,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:14,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:14,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:14,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:11:14,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:14,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:14,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 08:11:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:14,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:14,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:14,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:14,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:14,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:11:14,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:14,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:14,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:14,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:14,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:14,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 08:11:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:14,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:14,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:14,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:14,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:14,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:11:14,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:14,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:14,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:14,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:14,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:14,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:14,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 08:11:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:14,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:14,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:14,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:14,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:11:14,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:14,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:14,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:14,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:14,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 08:11:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:14,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:14,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:14,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:14,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:14,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:11:14,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:14,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:14,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:14,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-14 08:11:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:14,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:14,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:14,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:14,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:11:14,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:14,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:14,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:14,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-14 08:11:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:14,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:14,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:14,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:14,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:14,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:11:14,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:14,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:14,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:14,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:14,890 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 08:11:14,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610384231] [2020-10-14 08:11:14,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:14,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 08:11:14,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357185455] [2020-10-14 08:11:14,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 08:11:14,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:14,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 08:11:14,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:11:14,916 INFO L87 Difference]: Start difference. First operand 753 states. Second operand 8 states. [2020-10-14 08:11:17,788 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:18,452 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:19,196 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:19,920 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:20,530 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:21,174 INFO L93 Difference]: Finished difference Result 1031 states and 1815 transitions. [2020-10-14 08:11:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 08:11:21,180 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-10-14 08:11:21,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:21,204 INFO L225 Difference]: With dead ends: 1031 [2020-10-14 08:11:21,205 INFO L226 Difference]: Without dead ends: 813 [2020-10-14 08:11:21,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:11:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2020-10-14 08:11:21,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 748. [2020-10-14 08:11:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-14 08:11:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1347 transitions. [2020-10-14 08:11:21,448 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1347 transitions. Word has length 187 [2020-10-14 08:11:21,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:21,450 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 1347 transitions. [2020-10-14 08:11:21,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 08:11:21,450 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1347 transitions. [2020-10-14 08:11:21,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-14 08:11:21,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:21,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:11:21,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:11:21,455 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:21,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:21,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2122102430, now seen corresponding path program 1 times [2020-10-14 08:11:21,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:21,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534166612] [2020-10-14 08:11:21,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:21,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:24,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:24,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 08:11:24,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:24,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3342 [2020-10-14 08:11:24,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:24,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:24,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:11:24,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 08:11:24,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:11:24,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:25,863 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:11:25,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:25,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:25,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:25,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:25,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:25,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:11:25,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:25,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:25,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:25,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:25,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:25,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:25,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:26,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:26,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:26,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:11:26,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:26,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 654 [2020-10-14 08:11:26,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:26,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:26,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:11:26,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:26,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 08:11:26,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 08:11:26,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 08:11:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:26,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:26,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:26,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:26,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:26,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:26,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:26,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:11:26,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:11:26,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:26,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:26,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 08:11:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:26,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:26,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:26,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:26,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:26,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:26,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:26,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:26,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:26,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 08:11:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:26,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:26,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:26,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:26,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:26,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:26,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:26,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:26,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:26,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:26,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 08:11:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:26,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:26,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:26,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:26,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:26,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:26,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:26,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:27,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 08:11:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:27,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:27,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:27,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:27,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:27,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:11:27,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:27,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:27,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:27,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-14 08:11:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:27,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:27,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:27,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:27,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:27,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:11:27,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:27,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:27,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:27,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:27,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:27,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:27,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-14 08:11:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:27,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:27,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:27,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:27,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:27,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:11:27,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:27,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:27,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:27,186 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 08:11:27,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534166612] [2020-10-14 08:11:27,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:27,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 08:11:27,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058865722] [2020-10-14 08:11:27,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 08:11:27,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:27,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 08:11:27,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-14 08:11:27,191 INFO L87 Difference]: Start difference. First operand 748 states and 1347 transitions. Second operand 14 states. [2020-10-14 08:11:35,429 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 08:11:36,204 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-14 08:11:37,030 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 08:11:37,736 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:11:38,615 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:39,399 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:40,260 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:41,231 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:42,043 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:43,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:43,462 INFO L93 Difference]: Finished difference Result 1035 states and 1821 transitions. [2020-10-14 08:11:43,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:11:43,468 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 187 [2020-10-14 08:11:43,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:43,474 INFO L225 Difference]: With dead ends: 1035 [2020-10-14 08:11:43,474 INFO L226 Difference]: Without dead ends: 824 [2020-10-14 08:11:43,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:11:43,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-10-14 08:11:43,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 748. [2020-10-14 08:11:43,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-14 08:11:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1302 transitions. [2020-10-14 08:11:43,604 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1302 transitions. Word has length 187 [2020-10-14 08:11:43,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:43,605 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 1302 transitions. [2020-10-14 08:11:43,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 08:11:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1302 transitions. [2020-10-14 08:11:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-14 08:11:43,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:43,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:11:43,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:11:43,610 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:43,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:43,611 INFO L82 PathProgramCache]: Analyzing trace with hash 860163226, now seen corresponding path program 1 times [2020-10-14 08:11:43,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:43,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466905176] [2020-10-14 08:11:43,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:43,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:44,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:44,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:45,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:48,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:48,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 08:11:48,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:11:48,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 08:11:48,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:48,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:48,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:11:48,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-14 08:11:48,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 08:11:48,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:49,554 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:11:49,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:49,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:49,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:49,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:49,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 08:11:49,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:49,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:49,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:49,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:49,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:50,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 08:11:50,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:50,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-14 08:11:50,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:50,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 08:11:50,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:50,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-14 08:11:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:50,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:50,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:50,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:50,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:50,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:50,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:50,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:50,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:50,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:50,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:50,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:50,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 08:11:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:50,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:50,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:50,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:50,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:50,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:11:50,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:50,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:50,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:50,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:50,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-14 08:11:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:50,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:50,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:50,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:50,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:50,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:11:50,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:50,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:50,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:50,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:50,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:50,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:50,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 08:11:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:50,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:50,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:50,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:50,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:50,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:11:50,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:50,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:50,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:50,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:50,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:50,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:50,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 08:11:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:50,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:50,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:50,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:50,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:50,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:11:50,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:50,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:50,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:11:50,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:11:50,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:11:50,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:50,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-14 08:11:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:50,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:50,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:50,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:50,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:50,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:50,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:50,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:11:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:50,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:50,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 08:11:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:50,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:50,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:50,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:50,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:50,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:50,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:50,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:50,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:50,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:50,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:50,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:50,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:11:50,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466905176] [2020-10-14 08:11:50,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:50,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:11:50,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060530582] [2020-10-14 08:11:50,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:11:50,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:50,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:11:50,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:11:50,481 INFO L87 Difference]: Start difference. First operand 748 states and 1302 transitions. Second operand 11 states. [2020-10-14 08:11:51,208 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-14 08:11:56,936 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-14 08:11:57,501 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-14 08:11:58,193 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-14 08:11:58,915 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:11:59,500 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:11:59,975 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-14 08:12:00,179 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:12:01,721 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:12:02,166 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:12:02,632 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:12:03,586 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-14 08:12:03,810 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:12:04,153 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 08:12:04,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:12:04,198 INFO L93 Difference]: Finished difference Result 1281 states and 2185 transitions. [2020-10-14 08:12:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:12:04,198 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 231 [2020-10-14 08:12:04,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:12:04,207 INFO L225 Difference]: With dead ends: 1281 [2020-10-14 08:12:04,208 INFO L226 Difference]: Without dead ends: 1076 [2020-10-14 08:12:04,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:12:04,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2020-10-14 08:12:04,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 941. [2020-10-14 08:12:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 941 states. [2020-10-14 08:12:04,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1620 transitions. [2020-10-14 08:12:04,343 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1620 transitions. Word has length 231 [2020-10-14 08:12:04,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:12:04,344 INFO L479 AbstractCegarLoop]: Abstraction has 941 states and 1620 transitions. [2020-10-14 08:12:04,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:12:04,344 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1620 transitions. [2020-10-14 08:12:04,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-14 08:12:04,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:12:04,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:12:04,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:12:04,350 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:12:04,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:12:04,351 INFO L82 PathProgramCache]: Analyzing trace with hash 868885938, now seen corresponding path program 1 times [2020-10-14 08:12:04,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:12:04,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690031765] [2020-10-14 08:12:04,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:12:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:04,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:04,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:05,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:05,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:07,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:09,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:09,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-14 08:12:09,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:12:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 08:12:09,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:09,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:12:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 08:12:09,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:10,620 WARN L193 SmtUtils]: Spent 921.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:12:10,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:12:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:10,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:10,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:10,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:12:10,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:10,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 08:12:10,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:10,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:10,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:10,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:10,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:10,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:12:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:10,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:11,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:11,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 08:12:11,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:11,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-10-14 08:12:11,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:11,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:11,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:11,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 08:12:11,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:11,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-14 08:12:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:11,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:11,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:11,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:12:11,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:11,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:12:11,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:11,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:11,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:12:11,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:11,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 08:12:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:11,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:11,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:11,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:11,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:11,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:12:11,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:11,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:11,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:11,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:11,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-14 08:12:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:11,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:11,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:11,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:11,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:11,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:12:11,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:11,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:11,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:11,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:11,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 08:12:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:11,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:11,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:11,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:11,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:12:11,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:11,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:11,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:11,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 08:12:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:11,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:11,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:11,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:12:11,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:11,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:12:11,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:11,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:12:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:12:11,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:11,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-14 08:12:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:11,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:11,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:11,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:11,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:11,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:12:11,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:11,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:11,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:11,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:12:11,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:11,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:12:11,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-10-14 08:12:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:11,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:11,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:11,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:12:11,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:11,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:12:11,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:11,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:11,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:12,209 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 08:12:12,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690031765] [2020-10-14 08:12:12,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:12:12,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:12:12,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891141154] [2020-10-14 08:12:12,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:12:12,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:12:12,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:12:12,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:12:12,212 INFO L87 Difference]: Start difference. First operand 941 states and 1620 transitions. Second operand 11 states. [2020-10-14 08:12:12,933 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-14 08:12:13,668 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2020-10-14 08:12:14,849 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-14 08:12:16,244 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 383 DAG size of output: 381 [2020-10-14 08:12:32,716 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:12:33,220 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:12:33,588 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:12:34,336 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:12:34,601 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:12:35,191 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:12:36,255 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:12:36,564 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:12:37,262 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:12:38,377 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:12:38,774 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:12:39,454 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:12:40,544 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:12:41,565 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:12:41,955 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:12:42,324 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-14 08:12:44,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:12:44,397 INFO L93 Difference]: Finished difference Result 3888 states and 6701 transitions. [2020-10-14 08:12:44,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 08:12:44,399 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 235 [2020-10-14 08:12:44,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:12:44,413 INFO L225 Difference]: With dead ends: 3888 [2020-10-14 08:12:44,413 INFO L226 Difference]: Without dead ends: 3018 [2020-10-14 08:12:44,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-14 08:12:44,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3018 states. [2020-10-14 08:12:44,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3018 to 2651. [2020-10-14 08:12:44,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2651 states. [2020-10-14 08:12:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2651 states to 2651 states and 4554 transitions. [2020-10-14 08:12:44,779 INFO L78 Accepts]: Start accepts. Automaton has 2651 states and 4554 transitions. Word has length 235 [2020-10-14 08:12:44,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:12:44,779 INFO L479 AbstractCegarLoop]: Abstraction has 2651 states and 4554 transitions. [2020-10-14 08:12:44,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:12:44,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2651 states and 4554 transitions. [2020-10-14 08:12:44,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-14 08:12:44,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:12:44,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:12:44,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:12:44,789 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:12:44,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:12:44,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1203177297, now seen corresponding path program 1 times [2020-10-14 08:12:44,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:12:44,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904592542] [2020-10-14 08:12:44,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:12:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:45,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:45,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:45,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:46,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:46,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:46,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:47,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:47,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:49,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:49,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-14 08:12:49,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:12:49,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 08:12:49,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:49,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:49,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:49,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:12:49,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 215 [2020-10-14 08:12:49,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:51,001 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:12:51,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:12:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:51,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:51,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:51,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:12:51,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:51,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:12:51,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:51,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:51,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:51,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:51,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:51,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:51,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:12:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:51,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:51,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 08:12:51,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-14 08:12:51,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:51,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:51,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:12:51,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:51,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-14 08:12:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:51,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:51,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:51,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:12:51,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:51,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:12:51,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:51,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:51,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:12:51,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:51,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 08:12:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:51,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:51,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:51,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:51,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:12:51,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:51,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:51,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:51,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-14 08:12:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:51,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:51,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:51,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:51,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:51,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:12:51,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:51,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:51,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:51,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:51,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:51,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:51,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 08:12:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:51,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:51,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:51,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:51,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:51,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:12:51,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:51,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:51,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 08:12:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:51,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:51,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:51,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:12:51,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:12:51,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:51,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:51,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:51,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:51,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:12:51,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:51,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-14 08:12:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:51,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:51,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:51,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:51,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:51,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:12:51,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:51,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:12:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:51,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:51,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-14 08:12:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:51,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:51,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:51,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:12:51,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:51,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:12:51,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:51,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:51,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:51,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:51,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:51,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:52,041 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 08:12:52,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904592542] [2020-10-14 08:12:52,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:12:52,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:12:52,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141764226] [2020-10-14 08:12:52,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:12:52,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:12:52,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:12:52,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:12:52,050 INFO L87 Difference]: Start difference. First operand 2651 states and 4554 transitions. Second operand 11 states. [2020-10-14 08:12:52,762 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-14 08:12:53,442 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-14 08:12:54,451 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-14 08:12:55,112 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:13:08,020 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:13:08,454 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:08,791 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:13:09,586 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:10,188 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:13:11,191 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:11,796 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:13:12,796 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:13,380 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:13:14,664 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:15,017 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:13:16,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:13:16,629 INFO L93 Difference]: Finished difference Result 8836 states and 15205 transitions. [2020-10-14 08:13:16,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:13:16,630 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 236 [2020-10-14 08:13:16,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:13:16,659 INFO L225 Difference]: With dead ends: 8836 [2020-10-14 08:13:16,660 INFO L226 Difference]: Without dead ends: 6296 [2020-10-14 08:13:16,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:13:16,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2020-10-14 08:13:17,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 5583. [2020-10-14 08:13:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5583 states. [2020-10-14 08:13:17,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 9543 transitions. [2020-10-14 08:13:17,834 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 9543 transitions. Word has length 236 [2020-10-14 08:13:17,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:13:17,835 INFO L479 AbstractCegarLoop]: Abstraction has 5583 states and 9543 transitions. [2020-10-14 08:13:17,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:13:17,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 9543 transitions. [2020-10-14 08:13:17,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-14 08:13:17,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:13:17,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:13:17,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:13:17,850 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:13:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:13:17,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1313418776, now seen corresponding path program 1 times [2020-10-14 08:13:17,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:13:17,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099315817] [2020-10-14 08:13:17,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:13:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:18,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:18,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:18,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:18,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:18,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:19,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:19,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:22,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:22,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-14 08:13:22,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:13:22,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 08:13:22,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:22,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:22,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:13:22,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:13:22,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 215 [2020-10-14 08:13:22,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:23,707 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:13:23,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:13:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:23,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:23,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:23,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:13:23,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:23,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:13:23,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:23,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:23,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:23,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:23,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:23,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:23,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:13:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:23,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 08:13:24,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-14 08:13:24,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:13:24,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:24,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 08:13:24,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:24,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-14 08:13:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:24,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:13:24,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:13:24,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:13:24,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:24,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 08:13:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:24,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:24,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:13:24,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:24,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:24,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-14 08:13:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:24,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:24,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:13:24,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:24,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:24,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 08:13:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:24,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:24,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:13:24,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:24,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:24,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 08:13:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:24,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:13:24,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:13:24,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:24,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:13:24,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:13:24,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:24,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-14 08:13:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:24,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:24,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:13:24,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:24,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:24,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:24,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:24,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-14 08:13:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:24,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:24,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:24,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:13:24,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:24,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:13:24,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:24,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:24,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:13:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:24,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:13:24,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099315817] [2020-10-14 08:13:24,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:13:24,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:13:24,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574488759] [2020-10-14 08:13:24,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:13:24,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:13:24,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:13:24,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:13:24,665 INFO L87 Difference]: Start difference. First operand 5583 states and 9543 transitions. Second operand 11 states. [2020-10-14 08:13:25,423 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-14 08:13:26,124 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-14 08:13:27,030 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-14 08:13:27,747 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:13:40,951 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:13:41,325 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:41,606 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:13:42,618 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:43,079 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:13:44,168 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:44,624 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:13:45,626 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:46,041 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:13:47,156 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:13:47,404 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:13:48,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:13:48,947 INFO L93 Difference]: Finished difference Result 18526 states and 31713 transitions. [2020-10-14 08:13:48,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:13:48,951 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 236 [2020-10-14 08:13:48,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:13:48,995 INFO L225 Difference]: With dead ends: 18526 [2020-10-14 08:13:48,995 INFO L226 Difference]: Without dead ends: 13124 [2020-10-14 08:13:49,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:13:49,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13124 states. [2020-10-14 08:13:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13124 to 11736. [2020-10-14 08:13:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11736 states. [2020-10-14 08:13:50,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11736 states to 11736 states and 19910 transitions. [2020-10-14 08:13:50,667 INFO L78 Accepts]: Start accepts. Automaton has 11736 states and 19910 transitions. Word has length 236 [2020-10-14 08:13:50,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:13:50,668 INFO L479 AbstractCegarLoop]: Abstraction has 11736 states and 19910 transitions. [2020-10-14 08:13:50,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:13:50,668 INFO L276 IsEmpty]: Start isEmpty. Operand 11736 states and 19910 transitions. [2020-10-14 08:13:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-14 08:13:50,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:13:50,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:13:50,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:13:50,698 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:13:50,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:13:50,699 INFO L82 PathProgramCache]: Analyzing trace with hash 331253443, now seen corresponding path program 1 times [2020-10-14 08:13:50,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:13:50,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679115703] [2020-10-14 08:13:50,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:13:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:50,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:50,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:51,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:51,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:52,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:53,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:53,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:53,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:55,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:55,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-14 08:13:55,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:13:55,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5176 [2020-10-14 08:13:55,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:55,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:55,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:13:55,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:13:55,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 08:13:55,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:56,666 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:13:56,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:13:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:56,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:56,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:56,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:13:56,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:56,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:13:56,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:56,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:56,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:56,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:56,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:13:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:56,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:56,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:56,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 08:13:56,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:56,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-14 08:13:56,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:56,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:13:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:56,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:13:56,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:57,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-14 08:13:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:57,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:57,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:57,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:13:57,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:57,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:13:57,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:57,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:13:57,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:57,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 08:13:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:57,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:57,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:57,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:57,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:57,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:13:57,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:57,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:57,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:57,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:57,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:57,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:57,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-14 08:13:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:57,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:57,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:57,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:57,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:57,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:13:57,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:57,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:57,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:57,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:57,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:57,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:57,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 08:13:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:57,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:57,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:57,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:57,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:13:57,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:57,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:57,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:57,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 08:13:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:57,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:57,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:57,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:13:57,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:57,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:13:57,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:57,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:13:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:13:57,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:57,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-14 08:13:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:57,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:57,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:57,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:57,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:57,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:13:57,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:57,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:57,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:13:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:57,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:57,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-14 08:13:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:57,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:57,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:57,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:13:57,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:13:57,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:57,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:13:57,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:57,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:57,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:13:57,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679115703] [2020-10-14 08:13:57,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:13:57,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:13:57,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973784046] [2020-10-14 08:13:57,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:13:57,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:13:57,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:13:57,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:13:57,537 INFO L87 Difference]: Start difference. First operand 11736 states and 19910 transitions. Second operand 11 states. [2020-10-14 08:13:58,265 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-14 08:13:58,932 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-14 08:13:59,907 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-14 08:14:00,636 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:14:15,124 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 08:14:15,520 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:14:15,873 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:14:16,691 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:14:17,324 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:14:18,301 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:14:18,935 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:14:19,906 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:14:20,531 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:14:21,990 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 08:14:22,335 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 08:14:23,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:14:23,946 INFO L93 Difference]: Finished difference Result 37567 states and 63660 transitions. [2020-10-14 08:14:23,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:14:23,953 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 237 [2020-10-14 08:14:23,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:14:24,033 INFO L225 Difference]: With dead ends: 37567 [2020-10-14 08:14:24,033 INFO L226 Difference]: Without dead ends: 26582 [2020-10-14 08:14:24,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:14:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26582 states. [2020-10-14 08:14:26,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26582 to 23880. [2020-10-14 08:14:26,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23880 states. [2020-10-14 08:14:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23880 states to 23880 states and 40069 transitions. [2020-10-14 08:14:26,792 INFO L78 Accepts]: Start accepts. Automaton has 23880 states and 40069 transitions. Word has length 237 [2020-10-14 08:14:26,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:14:26,793 INFO L479 AbstractCegarLoop]: Abstraction has 23880 states and 40069 transitions. [2020-10-14 08:14:26,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:14:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand 23880 states and 40069 transitions. [2020-10-14 08:14:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-14 08:14:26,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:14:26,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:14:26,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:14:26,834 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:14:26,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:14:26,834 INFO L82 PathProgramCache]: Analyzing trace with hash 743857975, now seen corresponding path program 1 times [2020-10-14 08:14:26,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:14:26,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579332820] [2020-10-14 08:14:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:14:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:26,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:27,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:27,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:27,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:27,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:28,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:28,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:31,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:31,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-14 08:14:31,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:14:31,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:14:31,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:31,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:14:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:14:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 08:14:31,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:32,617 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 08:14:32,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:14:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:32,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:32,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:32,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:32,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:32,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:14:32,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:32,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:32,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:32,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:14:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:32,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:32,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:32,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 08:14:32,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:32,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-14 08:14:32,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:32,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:14:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 08:14:32,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:33,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-14 08:14:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:33,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:33,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:33,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:33,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:33,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:33,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:33,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:33,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:33,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:33,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:14:33,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:33,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 08:14:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:33,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:33,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:33,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:33,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:14:33,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:33,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:14:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:33,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-14 08:14:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:33,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:33,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:33,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:33,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:33,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:14:33,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:33,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:33,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:33,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:33,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:14:33,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:33,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 08:14:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:33,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:33,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:33,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:33,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:33,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:14:33,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:33,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:33,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:33,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:33,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:14:33,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:33,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 08:14:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:33,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:33,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:33,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:14:33,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:33,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:14:33,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:33,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:14:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:14:33,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:33,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-14 08:14:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:33,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:33,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:33,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:14:33,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:33,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:14:33,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:33,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:14:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:33,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:33,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-14 08:14:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:33,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:33,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:33,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:14:33,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:33,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:33,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:33,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:14:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:33,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:14:33,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579332820] [2020-10-14 08:14:33,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:14:33,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:14:33,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851249806] [2020-10-14 08:14:33,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:14:33,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:14:33,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:14:33,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:14:33,462 INFO L87 Difference]: Start difference. First operand 23880 states and 40069 transitions. Second operand 11 states. [2020-10-14 08:14:34,188 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-14 08:14:34,929 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2020-10-14 08:14:35,770 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-14 08:14:37,189 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 382 DAG size of output: 378