/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 SingleStatement --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:12:36,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:12:36,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:12:36,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:12:36,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:12:36,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:12:36,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:12:36,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:12:36,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:12:36,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:12:36,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:12:36,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:12:36,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:12:36,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:12:36,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:12:36,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:12:36,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:12:36,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:12:36,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:12:36,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:12:36,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:12:36,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:12:36,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:12:36,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:12:36,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:12:36,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:12:36,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:12:36,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:12:36,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:12:36,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:12:36,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:12:36,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:12:36,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:12:36,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:12:36,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:12:36,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:12:36,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:12:36,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:12:36,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:12:36,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:12:36,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:12:36,704 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 [2020-09-24 16:12:36,735 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:12:36,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:12:36,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:12:36,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:12:36,737 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:12:36,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:12:36,738 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:12:36,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:12:36,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:12:36,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:12:36,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:12:36,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:12:36,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:12:36,739 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:12:36,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:12:36,740 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:12:36,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:12:36,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:12:36,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:12:36,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:12:36,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:12:36,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:12:36,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:12:36,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:12:36,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:12:36,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:12:36,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:12:36,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:12:36,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:12:36,743 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 -> SingleStatement 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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:12:37,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:12:37,222 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:12:37,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:12:37,232 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:12:37,233 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:12:37,235 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c [2020-09-24 16:12:37,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20a2deaba/12712de92af94752b9f8336f23ce25d0/FLAG62fa94bd0 [2020-09-24 16:12:37,916 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:12:37,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c [2020-09-24 16:12:37,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20a2deaba/12712de92af94752b9f8336f23ce25d0/FLAG62fa94bd0 [2020-09-24 16:12:38,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20a2deaba/12712de92af94752b9f8336f23ce25d0 [2020-09-24 16:12:38,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:12:38,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:12:38,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:12:38,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:12:38,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:12:38,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:12:38" (1/1) ... [2020-09-24 16:12:38,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cedd037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38, skipping insertion in model container [2020-09-24 16:12:38,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:12:38" (1/1) ... [2020-09-24 16:12:38,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:12:38,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:12:38,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:12:38,583 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:12:38,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:12:38,640 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:12:38,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38 WrapperNode [2020-09-24 16:12:38,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:12:38,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:12:38,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:12:38,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:12:38,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38" (1/1) ... [2020-09-24 16:12:38,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38" (1/1) ... [2020-09-24 16:12:38,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38" (1/1) ... [2020-09-24 16:12:38,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38" (1/1) ... [2020-09-24 16:12:38,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38" (1/1) ... [2020-09-24 16:12:38,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38" (1/1) ... [2020-09-24 16:12:38,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38" (1/1) ... [2020-09-24 16:12:38,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:12:38,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:12:38,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:12:38,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:12:38,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38" (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 [2020-09-24 16:12:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:12:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:12:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-24 16:12:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-09-24 16:12:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-09-24 16:12:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-09-24 16:12:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-09-24 16:12:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-09-24 16:12:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-24 16:12:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-24 16:12:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-24 16:12:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-24 16:12:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-24 16:12:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-24 16:12:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:12:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:12:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:12:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-24 16:12:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-09-24 16:12:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-09-24 16:12:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-09-24 16:12:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-09-24 16:12:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-09-24 16:12:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-24 16:12:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-24 16:12:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-24 16:12:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-24 16:12:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-24 16:12:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-24 16:12:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:12:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:12:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:12:39,447 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:12:39,448 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 16:12:39,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:12:39 BoogieIcfgContainer [2020-09-24 16:12:39,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:12:39,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:12:39,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:12:39,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:12:39,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:12:38" (1/3) ... [2020-09-24 16:12:39,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dec7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:12:39, skipping insertion in model container [2020-09-24 16:12:39,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:38" (2/3) ... [2020-09-24 16:12:39,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dec7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:12:39, skipping insertion in model container [2020-09-24 16:12:39,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:12:39" (3/3) ... [2020-09-24 16:12:39,472 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2.c [2020-09-24 16:12:39,484 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:12:39,501 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:12:39,524 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:12:39,556 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:12:39,556 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:12:39,556 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:12:39,556 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:12:39,556 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:12:39,556 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:12:39,556 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:12:39,557 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:12:39,584 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-24 16:12:39,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-24 16:12:39,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:39,601 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] [2020-09-24 16:12:39,602 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:39,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:39,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1485288606, now seen corresponding path program 1 times [2020-09-24 16:12:39,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:39,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890949378] [2020-09-24 16:12:39,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:39,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:39,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:39,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:39,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:39,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-24 16:12:39,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:39,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 16:12:39,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:39,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-24 16:12:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:12:39,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:40,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:40,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:40,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:40,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:40,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:40,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:40,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:40,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:40,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:40,122 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:40,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:40,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:40,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:40,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:40,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:40,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:40,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:40,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:40,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:40,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:40,150 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:40,150 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:40,150 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:40,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:40,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:40,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:40,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:40,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:40,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:40,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:40,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:40,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:40,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:40,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:40,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:40,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:40,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:12:40,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:40,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:40,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:40,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:12:40,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:40,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-24 16:12:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:40,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:40,191 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:40,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:40,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:40,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:40,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:40,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:12:40,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:40,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:40,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 16:12:40,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:40,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 16:12:40,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:40,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:40,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:40,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:40,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:40,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:40,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:40,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:12:40,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:40,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:40,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:40,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:40,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:40,240 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:40,240 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:40,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:40,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:40,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:40,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:40,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:40,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:40,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:40,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:40,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:12:40,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890949378] [2020-09-24 16:12:40,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:40,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:12:40,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427892904] [2020-09-24 16:12:40,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:12:40,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:40,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:12:40,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:12:40,326 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-24 16:12:41,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:41,628 INFO L93 Difference]: Finished difference Result 573 states and 771 transitions. [2020-09-24 16:12:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:12:41,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2020-09-24 16:12:41,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:41,674 INFO L225 Difference]: With dead ends: 573 [2020-09-24 16:12:41,674 INFO L226 Difference]: Without dead ends: 416 [2020-09-24 16:12:41,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:12:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-24 16:12:41,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 305. [2020-09-24 16:12:41,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-09-24 16:12:41,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 366 transitions. [2020-09-24 16:12:41,840 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 366 transitions. Word has length 109 [2020-09-24 16:12:41,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:41,841 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 366 transitions. [2020-09-24 16:12:41,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:12:41,841 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 366 transitions. [2020-09-24 16:12:41,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-09-24 16:12:41,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:41,852 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] [2020-09-24 16:12:41,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:12:41,852 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:41,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:41,856 INFO L82 PathProgramCache]: Analyzing trace with hash -388258462, now seen corresponding path program 1 times [2020-09-24 16:12:41,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:41,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630859939] [2020-09-24 16:12:41,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:41,930 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:41,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:41,931 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:41,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:41,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 16:12:41,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:41,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:12:41,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:41,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 16:12:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:12:41,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:42,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:42,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:42,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:42,039 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:42,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:42,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:42,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:42,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:42,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:42,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:42,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:42,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:42,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:42,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:42,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:42,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:42,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:42,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:42,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:42,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:42,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:42,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:12:42,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:42,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:42,122 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:42,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:42,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:42,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:42,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:42,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:42,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:42,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 16:12:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:12:42,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:42,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:42,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:42,140 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:42,140 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:42,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:42,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:12:42,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:42,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:42,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:42,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:42,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 16:12:42,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:42,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:42,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-24 16:12:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:42,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:42,152 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:42,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:42,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:42,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:42,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:42,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:42,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 16:12:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:42,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:42,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:42,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:42,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:42,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:42,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:42,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:42,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:42,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:42,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:42,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:42,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:42,168 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:42,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:42,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:42,168 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:42,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:42,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:42,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:42,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:42,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:42,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:42,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:42,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:12:42,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630859939] [2020-09-24 16:12:42,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:42,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:12:42,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502226832] [2020-09-24 16:12:42,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:12:42,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:42,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:12:42,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:12:42,201 INFO L87 Difference]: Start difference. First operand 305 states and 366 transitions. Second operand 7 states. [2020-09-24 16:12:43,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:43,300 INFO L93 Difference]: Finished difference Result 663 states and 819 transitions. [2020-09-24 16:12:43,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 16:12:43,301 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-09-24 16:12:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:43,309 INFO L225 Difference]: With dead ends: 663 [2020-09-24 16:12:43,309 INFO L226 Difference]: Without dead ends: 402 [2020-09-24 16:12:43,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:12:43,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-24 16:12:43,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 299. [2020-09-24 16:12:43,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-09-24 16:12:43,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 358 transitions. [2020-09-24 16:12:43,372 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 358 transitions. Word has length 110 [2020-09-24 16:12:43,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:43,372 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 358 transitions. [2020-09-24 16:12:43,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:12:43,373 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 358 transitions. [2020-09-24 16:12:43,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-24 16:12:43,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:43,376 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] [2020-09-24 16:12:43,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:12:43,376 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:43,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:43,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1991457360, now seen corresponding path program 1 times [2020-09-24 16:12:43,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:43,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645011407] [2020-09-24 16:12:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:43,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 2 [2020-09-24 16:12:43,480 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:43,480 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:43,480 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:43,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 16:12:43,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:43,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 16:12:43,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:43,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:12:43,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 16:12:43,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 16:12:43,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:43,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:43,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:43,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:43,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:43,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:43,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:43,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:43,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:43,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:43,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:43,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:43,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:43,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:43,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:43,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:43,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:43,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:43,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:43,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:43,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:12:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:43,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:43,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:43,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:43,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:43,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:43,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:43,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:43,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:43,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:43,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:43,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:43,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:43,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:43,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:43,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:43,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:43,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:43,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:43,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:43,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 16:12:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:43,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:43,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:43,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:43,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:43,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:12:43,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:43,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:12:43,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:12:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:12:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:12:43,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:43,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 16:12:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:43,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:43,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:43,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:43,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:43,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:43,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:43,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:43,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 16:12:43,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:43,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:43,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:43,740 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:43,740 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:43,741 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:43,741 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:43,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:43,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:43,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:43,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:43,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:43,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:43,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:43,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:43,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:43,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:43,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:43,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:43,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:43,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:43,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:43,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:12:43,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645011407] [2020-09-24 16:12:43,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:43,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:12:43,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233187325] [2020-09-24 16:12:43,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:12:43,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:43,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:12:43,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:12:43,769 INFO L87 Difference]: Start difference. First operand 299 states and 358 transitions. Second operand 9 states. [2020-09-24 16:12:45,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:45,636 INFO L93 Difference]: Finished difference Result 1075 states and 1409 transitions. [2020-09-24 16:12:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 16:12:45,636 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 122 [2020-09-24 16:12:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:45,646 INFO L225 Difference]: With dead ends: 1075 [2020-09-24 16:12:45,646 INFO L226 Difference]: Without dead ends: 820 [2020-09-24 16:12:45,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-09-24 16:12:45,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2020-09-24 16:12:45,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 576. [2020-09-24 16:12:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2020-09-24 16:12:45,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 732 transitions. [2020-09-24 16:12:45,728 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 732 transitions. Word has length 122 [2020-09-24 16:12:45,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:45,729 INFO L479 AbstractCegarLoop]: Abstraction has 576 states and 732 transitions. [2020-09-24 16:12:45,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:12:45,729 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 732 transitions. [2020-09-24 16:12:45,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-09-24 16:12:45,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:45,734 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] [2020-09-24 16:12:45,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:12:45,734 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:45,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:45,735 INFO L82 PathProgramCache]: Analyzing trace with hash -116221757, now seen corresponding path program 1 times [2020-09-24 16:12:45,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:45,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115736567] [2020-09-24 16:12:45,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:45,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:45,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:45,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:45,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:45,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-24 16:12:45,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:45,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 16:12:45,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:45,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:12:45,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 16:12:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 16:12:45,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:45,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:45,973 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:45,973 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:45,973 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:45,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:45,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:45,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:45,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:45,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:45,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:46,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:46,018 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:46,019 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:46,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:46,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:46,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:46,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:46,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:12:46,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:46,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:46,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:46,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:12:46,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:46,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:46,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:46,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:46,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:46,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:46,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:46,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:46,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:46,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:46,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:46,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:46,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:46,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:46,061 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:46,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:46,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:46,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:46,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:46,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:46,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:46,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-24 16:12:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:46,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:46,071 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:46,071 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:46,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:46,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:46,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:46,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 16:12:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:46,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:46,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:46,081 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:46,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:46,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:46,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:46,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:46,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:46,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:46,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:46,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:46,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:46,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:46,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:46,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:46,090 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:46,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:46,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:46,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:46,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:46,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:46,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:46,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:46,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:46,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:46,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:12:46,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115736567] [2020-09-24 16:12:46,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:46,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:12:46,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404033987] [2020-09-24 16:12:46,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:12:46,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:46,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:12:46,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:12:46,118 INFO L87 Difference]: Start difference. First operand 576 states and 732 transitions. Second operand 6 states. [2020-09-24 16:12:47,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:47,193 INFO L93 Difference]: Finished difference Result 1211 states and 1617 transitions. [2020-09-24 16:12:47,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:12:47,194 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2020-09-24 16:12:47,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:47,201 INFO L225 Difference]: With dead ends: 1211 [2020-09-24 16:12:47,201 INFO L226 Difference]: Without dead ends: 679 [2020-09-24 16:12:47,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:12:47,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-09-24 16:12:47,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 596. [2020-09-24 16:12:47,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-09-24 16:12:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 767 transitions. [2020-09-24 16:12:47,262 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 767 transitions. Word has length 113 [2020-09-24 16:12:47,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:47,264 INFO L479 AbstractCegarLoop]: Abstraction has 596 states and 767 transitions. [2020-09-24 16:12:47,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:12:47,264 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 767 transitions. [2020-09-24 16:12:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-09-24 16:12:47,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:47,266 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] [2020-09-24 16:12:47,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:12:47,267 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:47,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:47,267 INFO L82 PathProgramCache]: Analyzing trace with hash 892872046, now seen corresponding path program 1 times [2020-09-24 16:12:47,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:47,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400701138] [2020-09-24 16:12:47,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:47,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:47,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:47,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:47,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:47,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-24 16:12:47,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:47,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 16:12:47,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:12:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 16:12:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 16:12:47,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:47,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:47,475 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:47,476 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:47,476 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:47,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:47,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:47,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:47,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:47,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:47,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:47,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:47,511 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:47,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:47,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:47,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:47,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:47,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:47,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:12:47,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:47,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:47,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:47,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:12:47,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:47,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:47,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:47,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:47,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:47,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:47,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:47,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:47,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:47,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:47,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:47,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:47,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:47,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:47,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:47,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:47,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:47,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:47,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:47,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:47,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:47,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:47,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:47,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:47,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:47,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-24 16:12:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:47,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:47,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:47,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:47,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:47,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:47,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:47,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:47,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 16:12:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:47,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:47,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:47,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:47,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:47,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:47,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:47,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:47,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:47,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:47,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:47,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:47,573 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:47,574 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:47,574 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:47,574 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:47,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:47,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:47,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:47,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:47,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:47,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:47,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:47,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:47,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:12:47,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400701138] [2020-09-24 16:12:47,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:47,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:12:47,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168515544] [2020-09-24 16:12:47,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:12:47,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:47,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:12:47,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:12:47,596 INFO L87 Difference]: Start difference. First operand 596 states and 767 transitions. Second operand 6 states. [2020-09-24 16:12:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:48,695 INFO L93 Difference]: Finished difference Result 1656 states and 2236 transitions. [2020-09-24 16:12:48,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:12:48,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2020-09-24 16:12:48,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:48,703 INFO L225 Difference]: With dead ends: 1656 [2020-09-24 16:12:48,703 INFO L226 Difference]: Without dead ends: 1104 [2020-09-24 16:12:48,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:12:48,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2020-09-24 16:12:48,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 968. [2020-09-24 16:12:48,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 968 states. [2020-09-24 16:12:48,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1257 transitions. [2020-09-24 16:12:48,786 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1257 transitions. Word has length 113 [2020-09-24 16:12:48,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:48,786 INFO L479 AbstractCegarLoop]: Abstraction has 968 states and 1257 transitions. [2020-09-24 16:12:48,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:12:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1257 transitions. [2020-09-24 16:12:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-24 16:12:48,791 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:48,791 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:12:48,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:12:48,792 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:48,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:48,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1124522967, now seen corresponding path program 1 times [2020-09-24 16:12:48,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:48,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321521148] [2020-09-24 16:12:48,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:48,831 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:48,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:48,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:48,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:48,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 16:12:48,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:48,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:48,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-24 16:12:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 16:12:48,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:48,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:48,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:48,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:48,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:48,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:48,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:48,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:48,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:48,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:48,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:48,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:48,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:48,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:48,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:48,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:48,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:48,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:48,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:48,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:48,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:48,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:48,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:48,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:48,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:48,971 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:48,971 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:48,971 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:48,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:48,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:48,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:48,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:48,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:48,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:48,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:48,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:48,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:48,980 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:48,980 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:48,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:48,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:48,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:48,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:48,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:48,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:48,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:48,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:49,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-24 16:12:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,018 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:12:49,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:49,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:12:49,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:49,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:12:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,028 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,029 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:49,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:49,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:49,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:49,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 16:12:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:49,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:49,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:49,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 16:12:49,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:49,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:49,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,045 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,046 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:49,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:49,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:49,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:49,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,052 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,053 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:49,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:49,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:49,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:49,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:49,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 16:12:49,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321521148] [2020-09-24 16:12:49,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:49,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:12:49,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657342214] [2020-09-24 16:12:49,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:12:49,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:49,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:12:49,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:12:49,116 INFO L87 Difference]: Start difference. First operand 968 states and 1257 transitions. Second operand 7 states. [2020-09-24 16:12:50,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:50,364 INFO L93 Difference]: Finished difference Result 2424 states and 3333 transitions. [2020-09-24 16:12:50,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 16:12:50,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-09-24 16:12:50,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:50,374 INFO L225 Difference]: With dead ends: 2424 [2020-09-24 16:12:50,374 INFO L226 Difference]: Without dead ends: 1500 [2020-09-24 16:12:50,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:12:50,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2020-09-24 16:12:50,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1366. [2020-09-24 16:12:50,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2020-09-24 16:12:50,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1812 transitions. [2020-09-24 16:12:50,512 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1812 transitions. Word has length 146 [2020-09-24 16:12:50,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:50,512 INFO L479 AbstractCegarLoop]: Abstraction has 1366 states and 1812 transitions. [2020-09-24 16:12:50,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:12:50,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1812 transitions. [2020-09-24 16:12:50,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 16:12:50,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:50,518 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:12:50,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:12:50,519 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:50,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:50,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1291534982, now seen corresponding path program 1 times [2020-09-24 16:12:50,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:50,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793403663] [2020-09-24 16:12:50,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,610 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 16:12:50,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 16:12:50,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:12:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 16:12:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 16:12:50,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:50,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:50,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:50,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:50,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:50,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:50,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:50,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:12:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:50,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,749 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,749 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,750 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,750 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:50,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:50,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:50,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:50,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:50,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:50,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:50,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:50,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:50,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:50,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 16:12:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 16:12:50,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:50,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 16:12:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 16:12:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:50,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:12:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:50,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:50,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 16:12:50,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 16:12:50,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:50,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,841 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,842 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,842 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,842 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:50,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:50,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:12:50,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:50,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:50,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:50,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:50,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:50,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 16:12:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:50,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:50,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:50,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 16:12:50,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:50,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:50,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,880 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:50,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:50,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:50,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:50,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:50,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:50,888 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:50,888 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:50,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:50,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:50,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:50,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:50,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:50,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:50,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:50,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:50,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 16:12:50,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793403663] [2020-09-24 16:12:50,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:12:50,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 16:12:50,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796839534] [2020-09-24 16:12:50,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:12:50,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:50,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:12:50,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:12:50,931 INFO L87 Difference]: Start difference. First operand 1366 states and 1812 transitions. Second operand 9 states. [2020-09-24 16:12:52,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:52,621 INFO L93 Difference]: Finished difference Result 2840 states and 3912 transitions. [2020-09-24 16:12:52,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 16:12:52,622 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-09-24 16:12:52,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:52,632 INFO L225 Difference]: With dead ends: 2840 [2020-09-24 16:12:52,632 INFO L226 Difference]: Without dead ends: 1629 [2020-09-24 16:12:52,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-09-24 16:12:52,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2020-09-24 16:12:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1416. [2020-09-24 16:12:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1416 states. [2020-09-24 16:12:52,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1749 transitions. [2020-09-24 16:12:52,744 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1749 transitions. Word has length 158 [2020-09-24 16:12:52,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:52,744 INFO L479 AbstractCegarLoop]: Abstraction has 1416 states and 1749 transitions. [2020-09-24 16:12:52,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:12:52,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1749 transitions. [2020-09-24 16:12:52,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:12:52,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:52,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:12:52,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:12:52,750 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:52,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:52,751 INFO L82 PathProgramCache]: Analyzing trace with hash 136608560, now seen corresponding path program 1 times [2020-09-24 16:12:52,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:52,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431220266] [2020-09-24 16:12:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:52,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 2 [2020-09-24 16:12:52,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -79 [2020-09-24 16:12:52,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 79 [2020-09-24 16:12:52,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:52,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 16:12:52,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:52,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:12:52,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:52,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:12:52,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-24 16:12:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:52,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:52,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:52,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:52,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:52,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:52,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:52,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:52,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:52,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:52,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:52,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:52,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:52,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:52,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:52,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:52,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:52,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:52,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:52,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:52,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:52,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:52,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:52,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:52,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:52,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:52,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:52,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:52,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:52,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:52,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:52,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:52,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:52,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:52,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:52,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:52,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:52,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:52,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:52,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:52,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:52,920 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:52,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:52,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:52,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:52,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:52,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:52,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:52,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:52,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 16:12:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:52,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:52,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:52,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:52,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:52,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 16:12:52,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:52,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:52,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:52,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 16:12:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:52,961 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:52,961 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:52,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:52,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:52,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:52,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:52,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:52,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:52,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:52,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:52,968 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:52,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:52,969 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:52,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:52,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:52,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:52,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:52,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:52,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:52,973 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:52,973 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:52,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:52,974 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:52,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:52,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:52,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:52,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:52,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:52,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:52,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 16:12:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:52,988 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:52,989 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:52,989 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:52,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:52,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 16:12:52,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:52,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:12:52,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:52,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:12:52,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:12:52,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:52,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:53,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:53,025 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:53,025 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:53,026 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:53,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:53,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:12:53,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:53,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:12:53,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:12:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:53,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:53,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:12:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:53,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:53,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:53,050 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:53,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:53,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:53,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:53,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:53,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 16:12:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:53,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:53,071 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 16:12:53,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431220266] [2020-09-24 16:12:53,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:53,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:12:53,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656936255] [2020-09-24 16:12:53,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:12:53,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:53,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:12:53,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:12:53,075 INFO L87 Difference]: Start difference. First operand 1416 states and 1749 transitions. Second operand 10 states. [2020-09-24 16:12:54,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:54,570 INFO L93 Difference]: Finished difference Result 2757 states and 3575 transitions. [2020-09-24 16:12:54,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 16:12:54,570 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-09-24 16:12:54,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:54,582 INFO L225 Difference]: With dead ends: 2757 [2020-09-24 16:12:54,582 INFO L226 Difference]: Without dead ends: 1736 [2020-09-24 16:12:54,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-09-24 16:12:54,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2020-09-24 16:12:54,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1472. [2020-09-24 16:12:54,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1472 states. [2020-09-24 16:12:54,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1805 transitions. [2020-09-24 16:12:54,691 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1805 transitions. Word has length 160 [2020-09-24 16:12:54,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:54,691 INFO L479 AbstractCegarLoop]: Abstraction has 1472 states and 1805 transitions. [2020-09-24 16:12:54,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:12:54,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1805 transitions. [2020-09-24 16:12:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:12:54,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:54,697 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:12:54,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:12:54,697 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:54,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:54,698 INFO L82 PathProgramCache]: Analyzing trace with hash 651313811, now seen corresponding path program 1 times [2020-09-24 16:12:54,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:54,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276885617] [2020-09-24 16:12:54,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 16:12:54,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:54,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-09-24 16:12:54,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:12:54,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:54,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:54,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:54,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:54,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:54,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:54,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:54,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,854 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:54,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:54,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:54,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:54,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,859 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,859 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:54,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:54,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:54,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:54,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 16:12:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 16:12:54,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:54,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:54,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:54,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 16:12:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,898 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:54,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:54,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:54,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:54,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:54,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:54,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:54,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:54,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:54,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:54,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 16:12:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 16:12:54,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 16:12:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 16:12:54,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:12:54,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:54,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:54,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:12:54,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:12:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:54,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:54,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:54,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:54,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:54,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:54,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:54,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:54,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:54,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:54,985 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 16:12:54,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276885617] [2020-09-24 16:12:54,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:54,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:12:54,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66083882] [2020-09-24 16:12:54,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:12:54,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:54,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:12:54,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:12:54,988 INFO L87 Difference]: Start difference. First operand 1472 states and 1805 transitions. Second operand 8 states. [2020-09-24 16:12:57,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:57,360 INFO L93 Difference]: Finished difference Result 4234 states and 5897 transitions. [2020-09-24 16:12:57,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 16:12:57,360 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 160 [2020-09-24 16:12:57,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:57,427 INFO L225 Difference]: With dead ends: 4234 [2020-09-24 16:12:57,427 INFO L226 Difference]: Without dead ends: 3157 [2020-09-24 16:12:57,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2020-09-24 16:12:57,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2020-09-24 16:12:57,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 2835. [2020-09-24 16:12:57,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2835 states. [2020-09-24 16:12:57,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 3781 transitions. [2020-09-24 16:12:57,640 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 3781 transitions. Word has length 160 [2020-09-24 16:12:57,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:57,641 INFO L479 AbstractCegarLoop]: Abstraction has 2835 states and 3781 transitions. [2020-09-24 16:12:57,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:12:57,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 3781 transitions. [2020-09-24 16:12:57,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-24 16:12:57,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:57,646 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:12:57,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:12:57,647 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:57,647 INFO L82 PathProgramCache]: Analyzing trace with hash 433644963, now seen corresponding path program 1 times [2020-09-24 16:12:57,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:57,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550093241] [2020-09-24 16:12:57,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,692 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 16:12:57,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:12:57,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-24 16:12:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:12:57,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,763 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,764 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,764 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:57,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:57,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:57,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:57,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:57,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:57,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,809 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:57,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:57,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:57,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:57,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:57,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:57,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 16:12:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,849 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,849 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,849 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,850 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 16:12:57,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:12:57,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:57,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:57,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 16:12:57,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 16:12:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:57,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:57,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:57,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:57,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:57,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:57,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:57,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:57,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:57,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:57,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,886 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:57,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:57,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:57,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-24 16:12:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:57,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:57,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 16:12:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:12:57,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-24 16:12:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 16:12:57,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:57,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:57,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 16:12:57,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:57,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,917 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:12:57,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:57,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:57,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:57,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:57,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:12:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:57,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:57,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:57,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:57,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:57,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:57,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:57,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:57,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:57,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:57,954 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-09-24 16:12:57,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550093241] [2020-09-24 16:12:57,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:57,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:12:57,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32626292] [2020-09-24 16:12:57,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:12:57,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:57,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:12:57,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:12:57,956 INFO L87 Difference]: Start difference. First operand 2835 states and 3781 transitions. Second operand 8 states. [2020-09-24 16:12:59,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:59,538 INFO L93 Difference]: Finished difference Result 3579 states and 4704 transitions. [2020-09-24 16:12:59,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 16:12:59,539 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 179 [2020-09-24 16:12:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:59,546 INFO L225 Difference]: With dead ends: 3579 [2020-09-24 16:12:59,546 INFO L226 Difference]: Without dead ends: 1161 [2020-09-24 16:12:59,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:12:59,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2020-09-24 16:12:59,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1094. [2020-09-24 16:12:59,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2020-09-24 16:12:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1250 transitions. [2020-09-24 16:12:59,660 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1250 transitions. Word has length 179 [2020-09-24 16:12:59,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:59,660 INFO L479 AbstractCegarLoop]: Abstraction has 1094 states and 1250 transitions. [2020-09-24 16:12:59,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:12:59,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1250 transitions. [2020-09-24 16:12:59,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 16:12:59,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:59,666 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:12:59,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:12:59,666 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:59,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:59,667 INFO L82 PathProgramCache]: Analyzing trace with hash 709880479, now seen corresponding path program 1 times [2020-09-24 16:12:59,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:59,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487699536] [2020-09-24 16:12:59,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:59,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:59,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:59,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:59,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:59,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 16:12:59,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:59,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:12:59,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:12:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-09-24 16:12:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-24 16:12:59,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:59,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:59,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:59,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:59,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:59,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:59,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:12:59,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:59,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:59,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:59,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:12:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:59,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:59,866 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:59,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:59,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:59,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:12:59,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:59,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:59,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:59,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:12:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:59,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:59,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:59,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:59,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:59,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:59,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:59,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:59,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:59,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:59,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:59,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:59,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:12:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:59,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:59,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:59,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:59,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:59,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:59,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:59,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:59,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:59,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:59,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:59,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 16:12:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:59,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:59,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:59,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:59,943 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:59,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 16:12:59,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:59,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:59,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:59,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:59,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:59,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:12:59,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:59,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 16:12:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:59,963 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:59,963 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:59,964 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:59,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:59,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:12:59,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:59,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:59,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:59,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:59,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:59,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 16:12:59,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:59,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:12:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:59,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:59,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:59,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:59,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:59,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:59,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:59,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:59,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:59,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:59,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:12:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:59,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:59,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:59,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:59,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:59,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:59,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:59,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:59,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:59,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:59,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:59,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:59,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:59,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 16:12:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:59,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:59,996 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:59,996 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:59,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:59,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 16:12:59,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:59,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:59,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:12:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 16:12:59,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:00,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:13:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:00,005 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:00,005 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:00,006 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:00,006 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:00,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:13:00,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:00,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:00,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:00,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:00,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:00,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:00,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:00,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:13:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:00,012 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:00,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:00,012 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:00,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:00,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:00,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:00,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:00,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-24 16:13:00,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487699536] [2020-09-24 16:13:00,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:13:00,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:13:00,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211896086] [2020-09-24 16:13:00,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:13:00,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:13:00,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:13:00,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:13:00,061 INFO L87 Difference]: Start difference. First operand 1094 states and 1250 transitions. Second operand 9 states. [2020-09-24 16:13:01,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:13:01,916 INFO L93 Difference]: Finished difference Result 1143 states and 1306 transitions. [2020-09-24 16:13:01,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 16:13:01,917 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 16:13:01,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:13:01,924 INFO L225 Difference]: With dead ends: 1143 [2020-09-24 16:13:01,924 INFO L226 Difference]: Without dead ends: 1140 [2020-09-24 16:13:01,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2020-09-24 16:13:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2020-09-24 16:13:01,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1093. [2020-09-24 16:13:01,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2020-09-24 16:13:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1248 transitions. [2020-09-24 16:13:01,995 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1248 transitions. Word has length 161 [2020-09-24 16:13:01,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:13:01,995 INFO L479 AbstractCegarLoop]: Abstraction has 1093 states and 1248 transitions. [2020-09-24 16:13:01,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:13:01,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1248 transitions. [2020-09-24 16:13:01,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 16:13:01,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:13:02,000 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:13:02,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 16:13:02,000 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:13:02,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:13:02,001 INFO L82 PathProgramCache]: Analyzing trace with hash 531148203, now seen corresponding path program 1 times [2020-09-24 16:13:02,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:13:02,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401549328] [2020-09-24 16:13:02,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:13:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,126 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,127 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,127 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:13:02,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 16:13:02,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 16:13:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 16:13:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-24 16:13:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:02,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:13:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,265 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,265 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,265 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:13:02,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:02,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:02,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:02,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:02,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:02,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:13:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,316 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,316 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,316 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,317 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:13:02,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:02,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:13:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:13:02,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:02,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:13:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,370 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:02,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:02,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:13:02,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:02,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:13:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:02,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:02,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:02,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:13:02,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:02,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 16:13:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,447 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 16:13:02,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:13:02,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:13:02,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:13:02,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 16:13:02,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:02,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 16:13:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:13:02,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:02,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 16:13:02,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:02,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:13:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:02,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:02,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:02,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:02,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:02,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:02,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:13:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:02,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:02,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:02,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:02,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 16:13:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,545 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 16:13:02,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:02,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:02,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:02,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 16:13:02,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:02,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:13:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:13:02,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:02,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:02,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:02,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:02,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:02,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:13:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:02,582 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:02,582 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:02,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:02,583 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:02,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:02,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:02,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:02,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:02,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:02,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:02,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:02,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:02,622 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-24 16:13:02,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401549328] [2020-09-24 16:13:02,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:13:02,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 16:13:02,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847617116] [2020-09-24 16:13:02,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 16:13:02,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:13:02,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 16:13:02,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:13:02,624 INFO L87 Difference]: Start difference. First operand 1093 states and 1248 transitions. Second operand 11 states. [2020-09-24 16:13:05,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:13:05,368 INFO L93 Difference]: Finished difference Result 1784 states and 2079 transitions. [2020-09-24 16:13:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-24 16:13:05,369 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 162 [2020-09-24 16:13:05,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:13:05,378 INFO L225 Difference]: With dead ends: 1784 [2020-09-24 16:13:05,379 INFO L226 Difference]: Without dead ends: 1781 [2020-09-24 16:13:05,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 16:13:05,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2020-09-24 16:13:05,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1649. [2020-09-24 16:13:05,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1649 states. [2020-09-24 16:13:05,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 1913 transitions. [2020-09-24 16:13:05,484 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 1913 transitions. Word has length 162 [2020-09-24 16:13:05,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:13:05,484 INFO L479 AbstractCegarLoop]: Abstraction has 1649 states and 1913 transitions. [2020-09-24 16:13:05,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 16:13:05,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 1913 transitions. [2020-09-24 16:13:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 16:13:05,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:13:05,490 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:13:05,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 16:13:05,490 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:13:05,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:13:05,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1810315171, now seen corresponding path program 2 times [2020-09-24 16:13:05,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:13:05,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217116382] [2020-09-24 16:13:05,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:13:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-24 16:13:05,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-09-24 16:13:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 16:13:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:13:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,589 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:13:05,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:13:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:13:05,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 16:13:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:05,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 16:13:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,639 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,639 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:05,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 16:13:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,671 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-24 16:13:05,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:13:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 16:13:05,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 16:13:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:13:05,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 16:13:05,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:13:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:05,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:13:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:05,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 16:13:05,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-24 16:13:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 16:13:05,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 16:13:05,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 16:13:05,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:13:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:05,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:13:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,724 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,724 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,724 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:05,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 16:13:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 16:13:05,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 16:13:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:13:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:13:05,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:13:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:05,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:05,749 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:05,749 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:05,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:05,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:05,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:05,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:05,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:05,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:05,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:05,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:05,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:05,811 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-09-24 16:13:05,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217116382] [2020-09-24 16:13:05,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:13:05,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:13:05,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772779504] [2020-09-24 16:13:05,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:13:05,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:13:05,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:13:05,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:13:05,814 INFO L87 Difference]: Start difference. First operand 1649 states and 1913 transitions. Second operand 7 states. [2020-09-24 16:13:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:13:06,886 INFO L93 Difference]: Finished difference Result 1988 states and 2319 transitions. [2020-09-24 16:13:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:13:06,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-09-24 16:13:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:13:06,887 INFO L225 Difference]: With dead ends: 1988 [2020-09-24 16:13:06,887 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:13:06,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-09-24 16:13:06,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:13:06,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:13:06,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:13:06,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:13:06,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 199 [2020-09-24 16:13:06,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:13:06,895 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:13:06,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:13:06,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:13:06,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:13:06,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 16:13:06,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:13:07,491 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-09-24 16:13:07,635 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-09-24 16:13:07,765 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2020-09-24 16:13:07,902 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2020-09-24 16:13:09,297 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-09-24 16:13:09,576 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2020-09-24 16:13:09,769 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2020-09-24 16:13:10,487 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-09-24 16:13:10,854 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-09-24 16:13:14,640 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 51 [2020-09-24 16:13:14,766 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2020-09-24 16:13:14,988 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2020-09-24 16:13:15,199 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2020-09-24 16:13:15,371 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100 [2020-09-24 16:13:15,626 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2020-09-24 16:13:16,013 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2020-09-24 16:13:16,249 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2020-09-24 16:13:16,410 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2020-09-24 16:13:16,540 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2020-09-24 16:13:18,686 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2020-09-24 16:13:18,839 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2020-09-24 16:13:19,075 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2020-09-24 16:13:19,235 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-09-24 16:13:19,388 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2020-09-24 16:13:19,625 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2020-09-24 16:13:19,790 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-09-24 16:13:20,321 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2020-09-24 16:13:20,572 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2020-09-24 16:13:20,807 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2020-09-24 16:13:21,063 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2020-09-24 16:13:21,300 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2020-09-24 16:13:21,600 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 71 [2020-09-24 16:13:21,861 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2020-09-24 16:13:22,327 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2020-09-24 16:13:22,823 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2020-09-24 16:13:23,061 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-09-24 16:13:23,205 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2020-09-24 16:13:23,695 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 68 [2020-09-24 16:13:24,118 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2020-09-24 16:13:24,726 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 61 [2020-09-24 16:13:25,031 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-09-24 16:13:25,202 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 34 [2020-09-24 16:13:25,600 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2020-09-24 16:13:25,736 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-09-24 16:13:25,914 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2020-09-24 16:13:27,380 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 150 DAG size of output: 122 [2020-09-24 16:13:27,499 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-09-24 16:13:27,945 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-09-24 16:13:28,309 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69