/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.4.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:09:55,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:09:55,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:09:55,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:09:55,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:09:55,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:09:55,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:09:55,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:09:55,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:09:55,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:09:55,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:09:55,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:09:55,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:09:55,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:09:55,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:09:55,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:09:55,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:09:55,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:09:55,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:09:55,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:09:55,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:09:55,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:09:55,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:09:55,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:09:55,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:09:55,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:09:55,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:09:55,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:09:55,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:09:55,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:09:55,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:09:55,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:09:55,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:09:55,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:09:55,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:09:55,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:09:55,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:09:55,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:09:55,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:09:55,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:09:55,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:09:55,841 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 08:09:55,864 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:09:55,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:09:55,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:09:55,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:09:55,866 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:09:55,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:09:55,866 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:09:55,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:09:55,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:09:55,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:09:55,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:09:55,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:09:55,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:09:55,868 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:09:55,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:09:55,868 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:09:55,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:09:55,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:09:55,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:09:55,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:09:55,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:09:55,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:09:55,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:09:55,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:09:55,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:09:55,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:09:55,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:09:55,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:09:55,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:09:55,871 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 08:09:56,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:09:56,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:09:56,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:09:56,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:09:56,200 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:09:56,201 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-14 08:09:56,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ecc13c492/51a0b96b5aa64aa281b7fc63f78c9d06/FLAGed02ee9f3 [2020-10-14 08:09:56,806 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:09:56,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-14 08:09:56,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ecc13c492/51a0b96b5aa64aa281b7fc63f78c9d06/FLAGed02ee9f3 [2020-10-14 08:09:57,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ecc13c492/51a0b96b5aa64aa281b7fc63f78c9d06 [2020-10-14 08:09:57,044 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:09:57,046 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:09:57,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:09:57,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:09:57,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:09:57,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105f07e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57, skipping insertion in model container [2020-10-14 08:09:57,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:09:57,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:09:57,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:09:57,568 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:09:57,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:09:57,700 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:09:57,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57 WrapperNode [2020-10-14 08:09:57,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:09:57,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:09:57,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:09:57,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:09:57,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (1/1) ... [2020-10-14 08:09:57,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:09:57,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:09:57,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:09:57,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:09:57,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (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 08:09:57,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:09:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:09:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:09:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:09:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:09:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:09:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 08:09:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:09:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:09:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:09:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:09:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:09:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:09:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:09:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:09:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:09:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:09:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:09:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:09:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:09:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:09:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:09:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:09:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:09:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:09:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:09:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:09:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:09:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:09:59,243 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:09:59,243 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:09:59,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:09:59 BoogieIcfgContainer [2020-10-14 08:09:59,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:09:59,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:09:59,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:09:59,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:09:59,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:09:57" (1/3) ... [2020-10-14 08:09:59,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4523fc75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:09:59, skipping insertion in model container [2020-10-14 08:09:59,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:09:57" (2/3) ... [2020-10-14 08:09:59,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4523fc75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:09:59, skipping insertion in model container [2020-10-14 08:09:59,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:09:59" (3/3) ... [2020-10-14 08:09:59,258 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-14 08:09:59,269 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:09:59,277 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:09:59,292 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:09:59,320 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:09:59,320 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:09:59,320 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:09:59,320 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:09:59,320 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:09:59,320 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:09:59,321 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:09:59,321 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:09:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states. [2020-10-14 08:09:59,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:09:59,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:59,366 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] [2020-10-14 08:09:59,366 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:59,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:59,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1394986335, now seen corresponding path program 1 times [2020-10-14 08:09:59,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:59,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688205210] [2020-10-14 08:09:59,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:59,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:00,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:00,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:10:00,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:00,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-10-14 08:10:00,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:00,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:00,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:00,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 08:10:00,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:00,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:10:00,879 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:00,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:00,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:00,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:00,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:00,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:00,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 08:10:00,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:00,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:00,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:00,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:00,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 08:10:01,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 08:10:01,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:10:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:01,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:01,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:10:01,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:10:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:01,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:01,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:01,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:10:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:01,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:01,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:01,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 08:10:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:01,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:01,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:10:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:01,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:01,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:10:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:01,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:01,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:01,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:01,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:01,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:01,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:01,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:01,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688205210] [2020-10-14 08:10:01,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:01,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:10:01,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602120036] [2020-10-14 08:10:01,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:10:01,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:01,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:10:01,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:10:01,312 INFO L87 Difference]: Start difference. First operand 365 states. Second operand 7 states. [2020-10-14 08:10:02,670 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:03,143 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:03,702 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:04,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:04,308 INFO L93 Difference]: Finished difference Result 560 states and 943 transitions. [2020-10-14 08:10:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:10:04,312 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-14 08:10:04,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:04,340 INFO L225 Difference]: With dead ends: 560 [2020-10-14 08:10:04,340 INFO L226 Difference]: Without dead ends: 400 [2020-10-14 08:10:04,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:10:04,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-14 08:10:04,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 360. [2020-10-14 08:10:04,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-14 08:10:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 619 transitions. [2020-10-14 08:10:04,443 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 619 transitions. Word has length 108 [2020-10-14 08:10:04,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:04,444 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 619 transitions. [2020-10-14 08:10:04,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:10:04,444 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 619 transitions. [2020-10-14 08:10:04,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:10:04,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:04,449 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] [2020-10-14 08:10:04,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:10:04,449 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:04,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:04,450 INFO L82 PathProgramCache]: Analyzing trace with hash -501499997, now seen corresponding path program 1 times [2020-10-14 08:10:04,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:04,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865863691] [2020-10-14 08:10:04,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:04,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:05,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:05,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:10:05,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:05,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1245 [2020-10-14 08:10:05,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:05,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:10:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 08:10:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:10:05,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:06,469 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:06,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:06,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:06,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:06,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:06,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:06,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:10:06,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:06,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:06,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:06,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:06,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:06,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:06,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:06,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 08:10:06,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:06,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-14 08:10:06,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:06,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 08:10:06,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:06,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:10:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:06,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:06,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:06,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:06,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:06,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:10:06,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:06,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:10:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:06,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 08:10:06,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:10:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:06,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:06,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:06,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:06,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:06,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:06,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:06,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:06,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:06,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:06,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:06,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:07,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:10:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:07,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:07,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:07,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:07,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:07,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:07,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:07,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:07,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:07,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 08:10:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:07,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:07,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:07,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:07,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:07,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:07,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:07,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:07,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:07,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:07,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:07,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:07,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:10:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:07,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:07,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:07,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:07,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:07,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:07,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:07,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:07,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:07,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:07,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:07,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:07,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:10:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:07,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:07,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:07,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:07,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:07,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:07,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:07,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:07,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:07,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:07,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:07,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:07,229 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 08:10:07,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865863691] [2020-10-14 08:10:07,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:07,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:10:07,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140390012] [2020-10-14 08:10:07,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:10:07,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:07,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:10:07,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:10:07,234 INFO L87 Difference]: Start difference. First operand 360 states and 619 transitions. Second operand 13 states. [2020-10-14 08:10:09,714 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-14 08:10:10,135 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-14 08:10:10,687 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-14 08:10:11,123 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:10:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:14,496 INFO L93 Difference]: Finished difference Result 558 states and 935 transitions. [2020-10-14 08:10:14,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:10:14,497 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-14 08:10:14,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:14,506 INFO L225 Difference]: With dead ends: 558 [2020-10-14 08:10:14,507 INFO L226 Difference]: Without dead ends: 400 [2020-10-14 08:10:14,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:10:14,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-14 08:10:14,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 360. [2020-10-14 08:10:14,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-14 08:10:14,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 573 transitions. [2020-10-14 08:10:14,588 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 573 transitions. Word has length 108 [2020-10-14 08:10:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:14,590 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 573 transitions. [2020-10-14 08:10:14,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:10:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 573 transitions. [2020-10-14 08:10:14,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-14 08:10:14,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:14,598 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] [2020-10-14 08:10:14,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:10:14,598 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:14,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:14,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1869459725, now seen corresponding path program 1 times [2020-10-14 08:10:14,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:14,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368455670] [2020-10-14 08:10:14,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:14,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:15,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:15,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:16,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:17,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:19,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:19,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 08:10:19,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:10:19,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-14 08:10:19,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:19,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:19,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:19,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 08:10:19,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 08:10:19,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,206 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:20,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:20,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:10:20,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:20,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:20,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:10:20,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 08:10:20,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:10:20,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:10:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:20,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:20,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:20,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:10:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:20,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:20,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:20,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:10:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:10:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:20,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:20,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:20,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:10:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:20,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:20,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:20,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:20,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:20,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:10:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:20,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:10:20,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:10:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:10:20,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 08:10:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:20,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:20,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:20,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:20,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:20,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:20,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:20,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:20,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:20,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:20,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:20,809 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 08:10:20,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368455670] [2020-10-14 08:10:20,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:20,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:10:20,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349909247] [2020-10-14 08:10:20,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:10:20,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:20,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:10:20,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:10:20,813 INFO L87 Difference]: Start difference. First operand 360 states and 573 transitions. Second operand 10 states. [2020-10-14 08:10:21,177 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:10:22,944 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:10:23,395 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:10:23,793 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:10:24,488 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-14 08:10:25,566 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:25,894 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:26,495 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-14 08:10:26,635 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 08:10:26,781 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:10:27,018 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:10:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:27,119 INFO L93 Difference]: Finished difference Result 750 states and 1199 transitions. [2020-10-14 08:10:27,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:10:27,120 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-14 08:10:27,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:27,130 INFO L225 Difference]: With dead ends: 750 [2020-10-14 08:10:27,130 INFO L226 Difference]: Without dead ends: 598 [2020-10-14 08:10:27,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:10:27,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-14 08:10:27,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 512. [2020-10-14 08:10:27,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-10-14 08:10:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 818 transitions. [2020-10-14 08:10:27,198 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 818 transitions. Word has length 153 [2020-10-14 08:10:27,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:27,198 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 818 transitions. [2020-10-14 08:10:27,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:10:27,199 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 818 transitions. [2020-10-14 08:10:27,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-14 08:10:27,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:27,204 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] [2020-10-14 08:10:27,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:10:27,204 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:27,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:27,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1760758797, now seen corresponding path program 1 times [2020-10-14 08:10:27,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:27,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550757710] [2020-10-14 08:10:27,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:27,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:28,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:29,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:29,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:30,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 08:10:32,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:10:32,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 08:10:32,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:10:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 08:10:32,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:32,677 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:32,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:32,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:32,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:32,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:10:32,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:32,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:32,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:32,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:32,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:10:32,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:32,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 08:10:32,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:32,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 08:10:32,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:33,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:10:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:33,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:33,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:33,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:33,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:33,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:33,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:33,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:33,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:10:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:33,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:33,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:33,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:33,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:33,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:10:33,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:33,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:33,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:10:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:33,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:33,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:33,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:33,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:33,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:10:33,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:33,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:33,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:33,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:33,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:33,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:33,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:10:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:33,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:33,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:33,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:33,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:33,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:10:33,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:33,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:33,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:33,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:10:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:33,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:33,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:33,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:10:33,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:33,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 08:10:33,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:33,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:10:33,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:33,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 08:10:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:33,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:33,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:33,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:33,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:33,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:33,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:33,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:33,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:33,474 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 08:10:33,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550757710] [2020-10-14 08:10:33,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:33,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:10:33,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324885553] [2020-10-14 08:10:33,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:10:33,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:33,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:10:33,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:10:33,477 INFO L87 Difference]: Start difference. First operand 512 states and 818 transitions. Second operand 10 states. [2020-10-14 08:10:33,850 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:10:34,253 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:10:34,784 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:10:35,503 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-14 08:10:40,137 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:10:40,534 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:40,780 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:41,301 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:41,601 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:42,044 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:42,686 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:43,010 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:44,004 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:44,448 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:45,268 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:46,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:46,501 INFO L93 Difference]: Finished difference Result 2137 states and 3434 transitions. [2020-10-14 08:10:46,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:10:46,502 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-14 08:10:46,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:46,515 INFO L225 Difference]: With dead ends: 2137 [2020-10-14 08:10:46,515 INFO L226 Difference]: Without dead ends: 1662 [2020-10-14 08:10:46,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:10:46,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2020-10-14 08:10:46,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1438. [2020-10-14 08:10:46,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2020-10-14 08:10:46,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2295 transitions. [2020-10-14 08:10:46,667 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2295 transitions. Word has length 156 [2020-10-14 08:10:46,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:46,669 INFO L479 AbstractCegarLoop]: Abstraction has 1438 states and 2295 transitions. [2020-10-14 08:10:46,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:10:46,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2295 transitions. [2020-10-14 08:10:46,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 08:10:46,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:46,674 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] [2020-10-14 08:10:46,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:10:46,674 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:46,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:46,675 INFO L82 PathProgramCache]: Analyzing trace with hash -897536887, now seen corresponding path program 1 times [2020-10-14 08:10:46,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:46,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210108501] [2020-10-14 08:10:46,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:46,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:46,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:47,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:47,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:49,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:49,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:51,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:51,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 08:10:51,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:10:51,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 08:10:51,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:51,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:10:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 08:10:51,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:52,303 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:52,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:52,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:52,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:52,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:52,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:10:52,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:52,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:52,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:52,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:52,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:52,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:52,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:52,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:10:52,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:52,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 08:10:52,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:52,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:52,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:10:52,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:52,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:10:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:52,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:52,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:52,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:52,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:52,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:52,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:52,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:52,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:52,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:52,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:52,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:10:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:52,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:52,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:52,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:52,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:10:52,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:52,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:52,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:52,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:52,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:52,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:52,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:10:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:52,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:52,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:52,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:52,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:10:52,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:52,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:52,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:52,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:52,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:10:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:52,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:52,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:52,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:52,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:10:52,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:52,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:52,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:52,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:52,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:52,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:52,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:10:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:52,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:52,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:52,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:52,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:10:52,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:52,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:52,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:52,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:10:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:10:52,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:52,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 08:10:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:52,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:52,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:52,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:52,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:52,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:52,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:53,078 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 08:10:53,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210108501] [2020-10-14 08:10:53,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:53,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:10:53,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724476329] [2020-10-14 08:10:53,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:10:53,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:53,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:10:53,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:10:53,081 INFO L87 Difference]: Start difference. First operand 1438 states and 2295 transitions. Second operand 10 states. [2020-10-14 08:10:53,532 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:10:53,914 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:10:54,390 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-14 08:10:54,782 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:10:58,697 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:10:59,051 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:10:59,245 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:10:59,941 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:00,218 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:00,891 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:01,173 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:02,009 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:02,249 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:03,421 INFO L93 Difference]: Finished difference Result 4703 states and 7535 transitions. [2020-10-14 08:11:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:11:03,422 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-14 08:11:03,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:03,438 INFO L225 Difference]: With dead ends: 4703 [2020-10-14 08:11:03,439 INFO L226 Difference]: Without dead ends: 3392 [2020-10-14 08:11:03,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:11:03,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3392 states. [2020-10-14 08:11:03,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3392 to 2968. [2020-10-14 08:11:03,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2968 states. [2020-10-14 08:11:03,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 4702 transitions. [2020-10-14 08:11:03,731 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 4702 transitions. Word has length 157 [2020-10-14 08:11:03,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:03,732 INFO L479 AbstractCegarLoop]: Abstraction has 2968 states and 4702 transitions. [2020-10-14 08:11:03,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:03,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 4702 transitions. [2020-10-14 08:11:03,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-14 08:11:03,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:03,740 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] [2020-10-14 08:11:03,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:11:03,740 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:03,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:03,742 INFO L82 PathProgramCache]: Analyzing trace with hash 531352680, now seen corresponding path program 1 times [2020-10-14 08:11:03,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:03,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813483372] [2020-10-14 08:11:03,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:03,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:03,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:04,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:04,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:06,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:06,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:07,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:08,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:08,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 08:11:08,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:11:08,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:11:08,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:08,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:08,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:08,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:11:08,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 08:11:08,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:09,308 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:09,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:09,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:09,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:09,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:11:09,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:09,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:09,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:09,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:09,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:09,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:09,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:09,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:09,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 08:11:09,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:09,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:09,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:09,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:09,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 08:11:09,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:09,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:09,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:09,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:09,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:09,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:09,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:09,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:09,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:09,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:09,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:09,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:09,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:09,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:09,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:09,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:09,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:09,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:09,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:09,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:09,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:09,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:09,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:09,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:09,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:09,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:09,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:09,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:09,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:09,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:09,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:09,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:09,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:09,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:09,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:09,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:09,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:09,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:11:09,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:09,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:09,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:09,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:09,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:09,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:09,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:11:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:09,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:09,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:09,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:11:09,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:09,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:11:09,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:09,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:09,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:09,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:11:09,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:11:09,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:09,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 08:11:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:09,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:09,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:09,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:09,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:09,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:11:09,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:09,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:09,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:09,855 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 08:11:09,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813483372] [2020-10-14 08:11:09,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:09,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:09,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983306037] [2020-10-14 08:11:09,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:09,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:09,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:09,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:09,856 INFO L87 Difference]: Start difference. First operand 2968 states and 4702 transitions. Second operand 10 states. [2020-10-14 08:11:10,259 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:10,672 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-10-14 08:11:11,335 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:11:12,081 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 258 [2020-10-14 08:11:16,887 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:11:17,243 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:17,487 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:17,897 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:18,243 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:18,772 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:19,327 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:19,674 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:20,669 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:21,191 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:21,603 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:22,041 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:23,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:23,100 INFO L93 Difference]: Finished difference Result 12113 states and 19172 transitions. [2020-10-14 08:11:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:11:23,100 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-14 08:11:23,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:23,150 INFO L225 Difference]: With dead ends: 12113 [2020-10-14 08:11:23,150 INFO L226 Difference]: Without dead ends: 9446 [2020-10-14 08:11:23,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:11:23,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9446 states. [2020-10-14 08:11:23,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9446 to 8282. [2020-10-14 08:11:23,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8282 states. [2020-10-14 08:11:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 13006 transitions. [2020-10-14 08:11:24,004 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 13006 transitions. Word has length 158 [2020-10-14 08:11:24,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:24,005 INFO L479 AbstractCegarLoop]: Abstraction has 8282 states and 13006 transitions. [2020-10-14 08:11:24,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:24,005 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 13006 transitions. [2020-10-14 08:11:24,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-14 08:11:24,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:24,025 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] [2020-10-14 08:11:24,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:11:24,026 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:24,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:24,026 INFO L82 PathProgramCache]: Analyzing trace with hash -964653436, now seen corresponding path program 1 times [2020-10-14 08:11:24,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:24,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499782755] [2020-10-14 08:11:24,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:24,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:24,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:24,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:25,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:25,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:25,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:26,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:29,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 08:11:29,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:11:29,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:11:29,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:29,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:11:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 08:11:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 08:11:29,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:29,500 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:29,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:29,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:29,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:29,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:29,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:11:29,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:29,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:29,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:29,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:29,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:29,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:29,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:29,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 08:11:29,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:29,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:11:29,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:29,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:29,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:29,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:29,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:29,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:29,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:29,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:29,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:29,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:29,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:29,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:29,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:29,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:29,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:29,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:29,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:29,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:29,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:29,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:29,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:29,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:29,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:29,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:29,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:29,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:29,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:29,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:29,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:29,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:11:29,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:29,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:11:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:11:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:11:29,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:29,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:11:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:29,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:29,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:11:29,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:29,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:11:29,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:29,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:11:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:29,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-14 08:11:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:29,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:29,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:29,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:29,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:11:29,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:29,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:29,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:29,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:29,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:29,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:29,932 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 08:11:29,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499782755] [2020-10-14 08:11:29,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:29,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:29,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989193616] [2020-10-14 08:11:29,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:29,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:29,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:29,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:29,934 INFO L87 Difference]: Start difference. First operand 8282 states and 13006 transitions. Second operand 10 states. [2020-10-14 08:11:30,345 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:32,723 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:11:33,186 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:11:33,751 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:34,037 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:34,412 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:11:34,674 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:35,699 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:36,397 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 08:11:36,790 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:11:36,962 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 08:11:37,192 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:11:37,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:37,321 INFO L93 Difference]: Finished difference Result 17129 states and 27074 transitions. [2020-10-14 08:11:37,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:11:37,322 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-14 08:11:37,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:37,381 INFO L225 Difference]: With dead ends: 17129 [2020-10-14 08:11:37,381 INFO L226 Difference]: Without dead ends: 13148 [2020-10-14 08:11:37,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:11:37,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13148 states. [2020-10-14 08:11:38,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13148 to 11258. [2020-10-14 08:11:38,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11258 states. [2020-10-14 08:11:38,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11258 states to 11258 states and 17646 transitions. [2020-10-14 08:11:38,430 INFO L78 Accepts]: Start accepts. Automaton has 11258 states and 17646 transitions. Word has length 159 [2020-10-14 08:11:38,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:38,431 INFO L479 AbstractCegarLoop]: Abstraction has 11258 states and 17646 transitions. [2020-10-14 08:11:38,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:38,431 INFO L276 IsEmpty]: Start isEmpty. Operand 11258 states and 17646 transitions. [2020-10-14 08:11:38,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-14 08:11:38,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:38,452 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] [2020-10-14 08:11:38,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:11:38,452 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:38,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:38,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1613689068, now seen corresponding path program 1 times [2020-10-14 08:11:38,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:38,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755408135] [2020-10-14 08:11:38,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:38,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:38,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:38,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:38,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:39,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:39,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:43,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:43,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-14 08:11:43,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:11:43,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:11:43,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:43,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:43,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:43,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:11:43,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 08:11:43,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:43,934 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:43,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:43,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:43,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:43,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:43,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:43,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:11:43,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:43,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:43,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:43,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:43,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:44,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:44,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:44,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:44,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 08:11:44,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:44,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:44,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:44,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:44,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:11:44,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:44,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:44,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:44,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:44,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:44,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:44,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:11:44,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:44,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:44,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:44,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:44,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:44,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:44,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:44,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:44,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:11:44,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:44,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:44,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:44,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:44,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:44,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:44,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:44,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:44,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:44,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:44,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:44,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:44,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:44,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:44,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:44,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:44,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:44,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:44,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:11:44,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:44,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:11:44,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:44,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:44,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:44,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:44,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:11:44,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:44,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 08:11:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:44,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:44,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:44,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:11:44,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:44,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:11:44,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:44,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:44,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:44,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:11:44,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:44,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:44,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-14 08:11:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:44,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:44,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:44,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:44,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:44,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:11:44,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:44,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:44,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:44,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:44,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:44,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:44,467 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 08:11:44,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755408135] [2020-10-14 08:11:44,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:44,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:44,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499539793] [2020-10-14 08:11:44,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:44,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:44,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:44,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:44,469 INFO L87 Difference]: Start difference. First operand 11258 states and 17646 transitions. Second operand 10 states. [2020-10-14 08:11:45,015 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:45,459 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-10-14 08:11:46,077 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:11:46,881 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 258 [2020-10-14 08:11:52,211 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:11:52,616 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:52,858 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:53,221 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:53,666 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:54,118 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:54,592 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:55,242 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:55,646 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:56,081 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:56,800 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:57,012 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:57,473 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:59,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:59,136 INFO L93 Difference]: Finished difference Result 43058 states and 67749 transitions. [2020-10-14 08:11:59,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:11:59,143 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-14 08:11:59,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:59,261 INFO L225 Difference]: With dead ends: 43058 [2020-10-14 08:11:59,261 INFO L226 Difference]: Without dead ends: 32263 [2020-10-14 08:11:59,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:11:59,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32263 states. [2020-10-14 08:12:02,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32263 to 28209. [2020-10-14 08:12:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28209 states. [2020-10-14 08:12:02,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28209 states to 28209 states and 43715 transitions. [2020-10-14 08:12:02,599 INFO L78 Accepts]: Start accepts. Automaton has 28209 states and 43715 transitions. Word has length 162 [2020-10-14 08:12:02,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:12:02,599 INFO L479 AbstractCegarLoop]: Abstraction has 28209 states and 43715 transitions. [2020-10-14 08:12:02,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:12:02,600 INFO L276 IsEmpty]: Start isEmpty. Operand 28209 states and 43715 transitions. [2020-10-14 08:12:02,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-14 08:12:02,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:12:02,646 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] [2020-10-14 08:12:02,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:12:02,647 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:12:02,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:12:02,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1602092920, now seen corresponding path program 1 times [2020-10-14 08:12:02,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:12:02,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116031654] [2020-10-14 08:12:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:12:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:02,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:02,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:02,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:03,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:03,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:06,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:06,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:07,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:07,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-14 08:12:07,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:12:07,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 08:12:07,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:07,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:07,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:07,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:12:07,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 08:12:07,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:08,135 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:12:08,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:12:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:08,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:08,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:12:08,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:08,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:12:08,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:08,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:08,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:08,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:12:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:08,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:08,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:12:08,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:08,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-14 08:12:08,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:08,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:08,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:08,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 08:12:08,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:08,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:12:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:08,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:08,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:12:08,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:08,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:08,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:08,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:08,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:08,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:12:08,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:08,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:12:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:08,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:08,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:08,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:08,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:12:08,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:08,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:08,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:08,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:08,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:08,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:08,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:12:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:08,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:08,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:08,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:08,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:12:08,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:08,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:08,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:08,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:12:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:08,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:08,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:12:08,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:08,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:12:08,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:08,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:12:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:12:08,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:08,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 08:12:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:08,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:08,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:12:08,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:08,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:12:08,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:08,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:08,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:08,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:12:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:08,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:08,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 08:12:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:08,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:08,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:12:08,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:08,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:08,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:08,713 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 08:12:08,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116031654] [2020-10-14 08:12:08,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:12:08,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:12:08,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814331882] [2020-10-14 08:12:08,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:12:08,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:12:08,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:12:08,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:12:08,715 INFO L87 Difference]: Start difference. First operand 28209 states and 43715 transitions. Second operand 10 states. [2020-10-14 08:12:09,160 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:12:09,549 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:12:10,006 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-14 08:12:10,419 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:15,465 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:15,824 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:16,092 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:16,745 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:17,163 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:17,939 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:18,337 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:19,178 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:19,378 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:21,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:12:21,989 INFO L93 Difference]: Finished difference Result 90501 states and 140549 transitions. [2020-10-14 08:12:21,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:12:21,990 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-14 08:12:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:12:22,192 INFO L225 Difference]: With dead ends: 90501 [2020-10-14 08:12:22,192 INFO L226 Difference]: Without dead ends: 63754 [2020-10-14 08:12:22,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:12:22,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63754 states. [2020-10-14 08:12:25,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63754 to 56066. [2020-10-14 08:12:25,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56066 states. [2020-10-14 08:12:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56066 states to 56066 states and 85491 transitions. [2020-10-14 08:12:25,669 INFO L78 Accepts]: Start accepts. Automaton has 56066 states and 85491 transitions. Word has length 163 [2020-10-14 08:12:25,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:12:25,669 INFO L479 AbstractCegarLoop]: Abstraction has 56066 states and 85491 transitions. [2020-10-14 08:12:25,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:12:25,669 INFO L276 IsEmpty]: Start isEmpty. Operand 56066 states and 85491 transitions. [2020-10-14 08:12:25,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-14 08:12:25,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:12:25,747 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] [2020-10-14 08:12:25,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:12:25,747 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:12:25,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:12:25,748 INFO L82 PathProgramCache]: Analyzing trace with hash 717490329, now seen corresponding path program 1 times [2020-10-14 08:12:25,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:12:25,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279885285] [2020-10-14 08:12:25,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:12:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:25,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:25,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:25,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:26,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:28,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:29,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:29,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:30,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:30,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-14 08:12:30,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:12:30,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 08:12:30,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:30,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:12:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 08:12:30,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:31,227 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:12:31,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:12:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:31,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:31,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:31,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:12:31,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:31,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:12:31,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:31,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:31,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:31,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:31,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:31,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:31,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:12:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:31,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:31,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:31,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:12:31,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:31,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 08:12:31,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:31,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:31,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:12:31,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:31,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:12:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:31,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:31,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:31,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:12:31,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:31,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:31,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:31,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:31,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:31,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:31,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:12:31,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:31,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:12:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:31,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:31,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:31,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:31,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:31,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:12:31,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:31,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:31,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:31,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:12:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:31,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:31,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:31,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:31,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:31,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:12:31,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:31,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:31,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:31,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:31,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:31,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:31,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:12:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:31,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:31,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:31,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:12:31,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:31,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:12:31,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:31,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:31,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:31,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:12:31,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:12:31,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:31,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 08:12:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:31,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:31,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:31,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:12:31,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:31,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:12:31,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:31,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:31,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:31,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:12:31,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:31,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:31,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 08:12:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:31,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:31,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:31,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:12:31,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:31,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:31,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:31,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:31,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:31,728 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 08:12:31,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279885285] [2020-10-14 08:12:31,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:12:31,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:12:31,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169400753] [2020-10-14 08:12:31,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:12:31,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:12:31,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:12:31,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:12:31,731 INFO L87 Difference]: Start difference. First operand 56066 states and 85491 transitions. Second operand 10 states. [2020-10-14 08:12:32,157 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:12:32,599 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:12:33,261 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:12:34,091 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-14 08:12:42,554 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:43,002 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:43,296 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:12:43,818 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:44,171 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:44,721 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:12:45,527 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:46,019 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:46,506 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:12:47,108 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:47,962 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:48,227 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:48,704 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:12:52,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:12:52,546 INFO L93 Difference]: Finished difference Result 219579 states and 335560 transitions. [2020-10-14 08:12:52,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:12:52,547 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-14 08:12:52,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:12:52,953 INFO L225 Difference]: With dead ends: 219579 [2020-10-14 08:12:52,953 INFO L226 Difference]: Without dead ends: 167314 [2020-10-14 08:12:53,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:12:53,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167314 states. [2020-10-14 08:13:04,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167314 to 147990. [2020-10-14 08:13:04,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147990 states. [2020-10-14 08:13:04,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147990 states to 147990 states and 223111 transitions. [2020-10-14 08:13:04,875 INFO L78 Accepts]: Start accepts. Automaton has 147990 states and 223111 transitions. Word has length 164 [2020-10-14 08:13:04,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:13:04,876 INFO L479 AbstractCegarLoop]: Abstraction has 147990 states and 223111 transitions. [2020-10-14 08:13:04,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:13:04,876 INFO L276 IsEmpty]: Start isEmpty. Operand 147990 states and 223111 transitions. [2020-10-14 08:13:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-14 08:13:05,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:13:05,006 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] [2020-10-14 08:13:05,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:13:05,006 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:13:05,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:13:05,006 INFO L82 PathProgramCache]: Analyzing trace with hash 2073108589, now seen corresponding path program 1 times [2020-10-14 08:13:05,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:13:05,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272389517] [2020-10-14 08:13:05,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:13:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:05,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:05,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:05,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:05,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:05,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:08,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:08,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:09,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:10,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:10,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 08:13:10,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:13:10,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 08:13:10,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:10,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:10,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:13:10,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-14 08:13:10,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:13:10,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:10,471 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:13:10,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:13:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:10,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:10,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:10,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:13:10,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:10,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:13:10,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:10,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:10,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:10,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:13:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:10,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:10,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:10,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:13:10,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:10,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 08:13:10,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:10,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 08:13:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:10,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:13:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:10,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:10,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:10,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:13:10,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:10,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:13:10,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:10,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:10,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:10,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:10,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:13:10,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:10,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:13:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:10,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:10,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:10,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:10,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:10,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:13:10,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:10,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:10,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:13:10,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:13:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:10,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:10,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:10,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:10,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:10,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:13:10,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:10,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:10,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:13:10,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:13:10,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:13:10,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:10,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:13:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:10,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:10,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:10,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:13:10,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:10,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:13:10,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:10,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:10,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:10,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:13:10,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:10,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:10,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 08:13:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:10,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:10,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:10,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:13:10,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:10,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:13:10,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:10,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:10,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:13:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:10,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:10,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 08:13:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:10,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:10,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:10,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:13:10,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:10,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:13:10,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:10,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:13:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:10,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:10,862 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 08:13:10,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272389517] [2020-10-14 08:13:10,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:13:10,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:13:10,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315625256] [2020-10-14 08:13:10,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:13:10,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:13:10,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:13:10,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:13:10,864 INFO L87 Difference]: Start difference. First operand 147990 states and 223111 transitions. Second operand 10 states. [2020-10-14 08:13:11,281 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:13:17,202 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:13:17,812 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:18,148 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:13:18,681 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:13:19,096 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:19,789 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:13:20,304 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:23,635 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:25,308 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:13:25,477 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 08:13:25,718 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 08:13:26,174 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:13:27,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:13:27,961 INFO L93 Difference]: Finished difference Result 335786 states and 512521 transitions. [2020-10-14 08:13:27,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:13:27,965 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-10-14 08:13:27,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:13:28,589 INFO L225 Difference]: With dead ends: 335786 [2020-10-14 08:13:28,589 INFO L226 Difference]: Without dead ends: 257984 [2020-10-14 08:13:28,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:13:28,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257984 states.