/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 --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/token_ring.01.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:33:18,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:33:18,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:33:18,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:33:18,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:33:18,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:33:18,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:33:18,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:33:18,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:33:18,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:33:18,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:33:18,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:33:18,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:33:18,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:33:18,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:33:18,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:33:18,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:33:18,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:33:18,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:33:18,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:33:18,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:33:18,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:33:18,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:33:18,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:33:18,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:33:18,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:33:18,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:33:18,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:33:18,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:33:18,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:33:18,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:33:18,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:33:18,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:33:18,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:33:18,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:33:18,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:33:18,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:33:18,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:33:18,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:33:18,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:33:18,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:33:18,124 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 [2020-09-21 11:33:18,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:33:18,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:33:18,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:33:18,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:33:18,176 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:33:18,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:33:18,177 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:33:18,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:33:18,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:33:18,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:33:18,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:33:18,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:33:18,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:33:18,179 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:33:18,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:33:18,180 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:33:18,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:33:18,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:33:18,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:33:18,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:33:18,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:33:18,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:33:18,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:33:18,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:33:18,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:33:18,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:33:18,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:33:18,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:33:18,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:33:18,183 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.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; [2020-09-21 11:33:18,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:33:18,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:33:18,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:33:18,728 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:33:18,729 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:33:18,730 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.01.cil-1.c [2020-09-21 11:33:18,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d934eea46/c69f81b327174cb0a02fca8628888a00/FLAG47c87b730 [2020-09-21 11:33:19,352 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:33:19,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/token_ring.01.cil-1.c [2020-09-21 11:33:19,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d934eea46/c69f81b327174cb0a02fca8628888a00/FLAG47c87b730 [2020-09-21 11:33:19,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d934eea46/c69f81b327174cb0a02fca8628888a00 [2020-09-21 11:33:19,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:33:19,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:33:19,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:19,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:33:19,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:33:19,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:19" (1/1) ... [2020-09-21 11:33:19,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536a0b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:19, skipping insertion in model container [2020-09-21 11:33:19,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:19" (1/1) ... [2020-09-21 11:33:19,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:33:19,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:33:20,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:20,098 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:33:20,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:20,258 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:33:20,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20 WrapperNode [2020-09-21 11:33:20,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:20,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:33:20,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:33:20,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:33:20,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:33:20,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:33:20,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:33:20,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:33:20,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (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 [2020-09-21 11:33:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:33:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:33:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-21 11:33:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-21 11:33:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-21 11:33:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-21 11:33:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-21 11:33:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-21 11:33:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-21 11:33:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-21 11:33:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-21 11:33:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-21 11:33:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-21 11:33:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-21 11:33:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-21 11:33:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-21 11:33:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-21 11:33:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-21 11:33:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-21 11:33:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-21 11:33:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:33:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:33:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-21 11:33:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-21 11:33:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-21 11:33:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-21 11:33:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:33:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-21 11:33:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-21 11:33:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-21 11:33:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-21 11:33:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-21 11:33:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-21 11:33:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-21 11:33:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-21 11:33:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-21 11:33:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-21 11:33:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-21 11:33:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-21 11:33:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-21 11:33:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-21 11:33:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:33:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:33:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:33:20,899 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:33:20,899 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-21 11:33:20,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:20 BoogieIcfgContainer [2020-09-21 11:33:20,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:33:20,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:33:20,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:33:20,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:33:20,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:33:19" (1/3) ... [2020-09-21 11:33:20,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebda4a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:20, skipping insertion in model container [2020-09-21 11:33:20,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (2/3) ... [2020-09-21 11:33:20,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebda4a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:20, skipping insertion in model container [2020-09-21 11:33:20,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:20" (3/3) ... [2020-09-21 11:33:20,925 INFO L109 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-1.c [2020-09-21 11:33:20,939 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:33:20,953 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:33:20,974 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:33:21,004 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:33:21,004 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:33:21,004 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:33:21,004 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:33:21,004 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:33:21,005 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:33:21,005 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:33:21,005 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:33:21,032 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-09-21 11:33:21,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:33:21,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:21,045 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] [2020-09-21 11:33:21,046 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:21,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:21,053 INFO L82 PathProgramCache]: Analyzing trace with hash 205618956, now seen corresponding path program 1 times [2020-09-21 11:33:21,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:21,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571021937] [2020-09-21 11:33:21,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,470 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,471 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,471 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:33:21,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-21 11:33:21,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:33:21,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:21,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-21 11:33:21,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,703 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:21,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:33:21,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:21,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:21,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:33:21,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:21,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:21,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:21,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:21,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,752 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,753 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,753 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,753 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:21,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:21,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:21,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:21,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:21,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:21,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:21,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:21,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:33:21,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:21,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:21,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:33:21,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,858 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,859 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:21,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:21,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:21,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:21,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,938 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:21,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:21,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:21,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571021937] [2020-09-21 11:33:21,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:21,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:33:21,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183856337] [2020-09-21 11:33:21,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:33:21,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:21,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:33:21,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:33:21,996 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 8 states. [2020-09-21 11:33:24,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:24,081 INFO L93 Difference]: Finished difference Result 506 states and 762 transitions. [2020-09-21 11:33:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:33:24,083 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2020-09-21 11:33:24,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:24,106 INFO L225 Difference]: With dead ends: 506 [2020-09-21 11:33:24,106 INFO L226 Difference]: Without dead ends: 362 [2020-09-21 11:33:24,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:33:24,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-09-21 11:33:24,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 244. [2020-09-21 11:33:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-21 11:33:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 324 transitions. [2020-09-21 11:33:24,246 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 324 transitions. Word has length 77 [2020-09-21 11:33:24,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:24,247 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 324 transitions. [2020-09-21 11:33:24,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:33:24,248 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 324 transitions. [2020-09-21 11:33:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:33:24,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:24,259 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] [2020-09-21 11:33:24,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:33:24,261 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:24,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:24,262 INFO L82 PathProgramCache]: Analyzing trace with hash -2125445556, now seen corresponding path program 1 times [2020-09-21 11:33:24,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:24,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581735221] [2020-09-21 11:33:24,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,413 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:33:24,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-21 11:33:24,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:33:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:33:24,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,513 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:24,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:24,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:24,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,534 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,534 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,534 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:24,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:24,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:24,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,542 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:24,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:24,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:24,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:24,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:24,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:24,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:24,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:24,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:24,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:33:24,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:33:24,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:24,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:24,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:24,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:24,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:24,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:24,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:24,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,641 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:24,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:24,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:24,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,649 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:24,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:24,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:24,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:24,657 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:24,657 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:24,657 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:24,657 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:24,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:24,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:24,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:24,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:24,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:24,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:24,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:24,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581735221] [2020-09-21 11:33:24,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:24,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:33:24,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518366398] [2020-09-21 11:33:24,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:24,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:24,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:24,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:24,671 INFO L87 Difference]: Start difference. First operand 244 states and 324 transitions. Second operand 10 states. [2020-09-21 11:33:26,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:26,589 INFO L93 Difference]: Finished difference Result 722 states and 1008 transitions. [2020-09-21 11:33:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:33:26,589 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-09-21 11:33:26,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:26,603 INFO L225 Difference]: With dead ends: 722 [2020-09-21 11:33:26,603 INFO L226 Difference]: Without dead ends: 497 [2020-09-21 11:33:26,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:33:26,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-21 11:33:26,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 343. [2020-09-21 11:33:26,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-09-21 11:33:26,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 443 transitions. [2020-09-21 11:33:26,666 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 443 transitions. Word has length 77 [2020-09-21 11:33:26,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:26,667 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 443 transitions. [2020-09-21 11:33:26,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 443 transitions. [2020-09-21 11:33:26,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:33:26,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:26,669 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] [2020-09-21 11:33:26,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:33:26,669 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:26,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:26,670 INFO L82 PathProgramCache]: Analyzing trace with hash -676620532, now seen corresponding path program 1 times [2020-09-21 11:33:26,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:26,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662545949] [2020-09-21 11:33:26,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:33:26,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 11:33:26,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:33:26,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:33:26,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,820 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,821 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:26,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:33:26,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:26,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:26,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,848 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,849 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,849 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,850 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:26,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:26,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:26,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,858 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,859 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:26,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:26,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:26,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:26,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:26,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:26,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:26,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:33:26,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:33:26,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,953 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:26,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:26,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:26,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,964 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:26,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,970 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,970 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,970 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:26,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,982 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,982 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:26,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:26,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,990 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,990 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,991 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,991 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:26,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:27,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662545949] [2020-09-21 11:33:27,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:27,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:33:27,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128242488] [2020-09-21 11:33:27,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:27,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:27,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:27,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:27,036 INFO L87 Difference]: Start difference. First operand 343 states and 443 transitions. Second operand 10 states. [2020-09-21 11:33:29,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:29,317 INFO L93 Difference]: Finished difference Result 1126 states and 1606 transitions. [2020-09-21 11:33:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:33:29,317 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-09-21 11:33:29,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:29,326 INFO L225 Difference]: With dead ends: 1126 [2020-09-21 11:33:29,326 INFO L226 Difference]: Without dead ends: 802 [2020-09-21 11:33:29,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:33:29,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2020-09-21 11:33:29,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 521. [2020-09-21 11:33:29,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-09-21 11:33:29,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 653 transitions. [2020-09-21 11:33:29,417 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 653 transitions. Word has length 77 [2020-09-21 11:33:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:29,419 INFO L479 AbstractCegarLoop]: Abstraction has 521 states and 653 transitions. [2020-09-21 11:33:29,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:29,420 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 653 transitions. [2020-09-21 11:33:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:33:29,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:29,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:29,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:33:29,430 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:29,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:29,430 INFO L82 PathProgramCache]: Analyzing trace with hash 758526605, now seen corresponding path program 1 times [2020-09-21 11:33:29,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:29,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175579752] [2020-09-21 11:33:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,473 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:33:29,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:33:29,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-21 11:33:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:29,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:29,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:29,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:29,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,569 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:29,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:29,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:29,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:29,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:29,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:29,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:29,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,619 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:29,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:29,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:29,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:29,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:33:29,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:29,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,710 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:29,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:33:29,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:29,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:29,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:29,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:29,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,752 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,753 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,753 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,753 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:29,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:29,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:29,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:29,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,773 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,773 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:29,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:29,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:29,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175579752] [2020-09-21 11:33:29,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:29,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:33:29,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302859716] [2020-09-21 11:33:29,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:29,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:29,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:29,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:29,786 INFO L87 Difference]: Start difference. First operand 521 states and 653 transitions. Second operand 10 states. [2020-09-21 11:33:31,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:31,436 INFO L93 Difference]: Finished difference Result 1282 states and 1703 transitions. [2020-09-21 11:33:31,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:33:31,437 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-09-21 11:33:31,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:31,442 INFO L225 Difference]: With dead ends: 1282 [2020-09-21 11:33:31,442 INFO L226 Difference]: Without dead ends: 781 [2020-09-21 11:33:31,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:33:31,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-09-21 11:33:31,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 556. [2020-09-21 11:33:31,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-09-21 11:33:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 688 transitions. [2020-09-21 11:33:31,510 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 688 transitions. Word has length 77 [2020-09-21 11:33:31,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:31,510 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 688 transitions. [2020-09-21 11:33:31,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:31,510 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 688 transitions. [2020-09-21 11:33:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:33:31,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:31,512 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] [2020-09-21 11:33:31,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:33:31,513 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:31,513 INFO L82 PathProgramCache]: Analyzing trace with hash -613280693, now seen corresponding path program 1 times [2020-09-21 11:33:31,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:31,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007869912] [2020-09-21 11:33:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:33:31,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:33:31,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:31,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-21 11:33:31,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:31,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,596 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,597 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:31,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,617 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,618 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:31,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,623 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,623 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:31,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:31,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:31,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,666 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:31,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:31,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 11:33:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,708 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,708 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:31,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,726 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:31,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:33:31,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:31,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:31,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:31,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:31,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:31,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007869912] [2020-09-21 11:33:31,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:31,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:33:31,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40871913] [2020-09-21 11:33:31,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:31,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:31,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:31,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:31,776 INFO L87 Difference]: Start difference. First operand 556 states and 688 transitions. Second operand 10 states. [2020-09-21 11:33:33,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:33,240 INFO L93 Difference]: Finished difference Result 1330 states and 1745 transitions. [2020-09-21 11:33:33,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:33:33,240 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-09-21 11:33:33,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:33,246 INFO L225 Difference]: With dead ends: 1330 [2020-09-21 11:33:33,246 INFO L226 Difference]: Without dead ends: 794 [2020-09-21 11:33:33,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:33:33,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2020-09-21 11:33:33,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 571. [2020-09-21 11:33:33,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-09-21 11:33:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 699 transitions. [2020-09-21 11:33:33,301 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 699 transitions. Word has length 77 [2020-09-21 11:33:33,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:33,301 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 699 transitions. [2020-09-21 11:33:33,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 699 transitions. [2020-09-21 11:33:33,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:33:33,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:33,303 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] [2020-09-21 11:33:33,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:33:33,303 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:33,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:33,304 INFO L82 PathProgramCache]: Analyzing trace with hash 88319181, now seen corresponding path program 1 times [2020-09-21 11:33:33,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:33,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856435419] [2020-09-21 11:33:33,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:33:33,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:33:33,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:33:33,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:33,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-21 11:33:33,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:33,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:33,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:33,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,448 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:33,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:33,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:33,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,454 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,455 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:33,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:33,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:33,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,469 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:33,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:33,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:33,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:33,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:33,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:33,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:33,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:33:33,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:33,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:33,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-21 11:33:33,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:33,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,554 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,554 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:33,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:33,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:33,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:33,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:33,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:33:33,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:33,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:33,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856435419] [2020-09-21 11:33:33,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:33,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:33:33,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943264690] [2020-09-21 11:33:33,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:33,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:33,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:33,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:33,618 INFO L87 Difference]: Start difference. First operand 571 states and 699 transitions. Second operand 10 states. [2020-09-21 11:33:34,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:34,901 INFO L93 Difference]: Finished difference Result 1398 states and 1750 transitions. [2020-09-21 11:33:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:33:34,902 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-09-21 11:33:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:34,913 INFO L225 Difference]: With dead ends: 1398 [2020-09-21 11:33:34,913 INFO L226 Difference]: Without dead ends: 846 [2020-09-21 11:33:34,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:33:34,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-09-21 11:33:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 648. [2020-09-21 11:33:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-09-21 11:33:34,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 762 transitions. [2020-09-21 11:33:34,988 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 762 transitions. Word has length 77 [2020-09-21 11:33:34,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:34,989 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 762 transitions. [2020-09-21 11:33:34,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:34,990 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 762 transitions. [2020-09-21 11:33:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:33:34,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:34,991 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] [2020-09-21 11:33:34,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:33:34,992 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:34,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:34,992 INFO L82 PathProgramCache]: Analyzing trace with hash 228867791, now seen corresponding path program 1 times [2020-09-21 11:33:34,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:34,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123929045] [2020-09-21 11:33:34,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,036 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:33:35,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:33:35,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:33:35,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-21 11:33:35,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:33:35,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:35,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,120 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,121 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,121 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:35,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:35,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:35,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:35,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:35,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:35,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:35,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:35,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:35,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,157 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:35,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:35,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:35,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:35,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:35,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:35,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,194 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,195 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,195 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,195 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:35,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:35,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:35,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:35,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:33:35,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,209 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,209 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,209 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:35,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:35,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:33:35,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:35,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:35,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:35,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123929045] [2020-09-21 11:33:35,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:35,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:33:35,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247685398] [2020-09-21 11:33:35,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:33:35,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:35,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:33:35,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:33:35,231 INFO L87 Difference]: Start difference. First operand 648 states and 762 transitions. Second operand 7 states. [2020-09-21 11:33:36,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:36,638 INFO L93 Difference]: Finished difference Result 2010 states and 2551 transitions. [2020-09-21 11:33:36,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:33:36,638 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-09-21 11:33:36,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:36,648 INFO L225 Difference]: With dead ends: 2010 [2020-09-21 11:33:36,648 INFO L226 Difference]: Without dead ends: 1382 [2020-09-21 11:33:36,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:33:36,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2020-09-21 11:33:36,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1187. [2020-09-21 11:33:36,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1187 states. [2020-09-21 11:33:36,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1448 transitions. [2020-09-21 11:33:36,761 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1448 transitions. Word has length 77 [2020-09-21 11:33:36,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:36,762 INFO L479 AbstractCegarLoop]: Abstraction has 1187 states and 1448 transitions. [2020-09-21 11:33:36,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:33:36,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1448 transitions. [2020-09-21 11:33:36,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-21 11:33:36,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:36,765 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:33:36,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:33:36,765 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:36,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:36,766 INFO L82 PathProgramCache]: Analyzing trace with hash -208124888, now seen corresponding path program 1 times [2020-09-21 11:33:36,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:36,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956659756] [2020-09-21 11:33:36,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,801 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,801 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-21 11:33:36,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:33:36,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-21 11:33:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-21 11:33:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:36,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:36,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,879 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:36,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:36,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,888 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:36,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:36,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:36,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,933 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,933 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:36,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:36,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:36,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:36,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:33:36,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:33:36,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:36,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,990 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,990 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,991 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,991 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:36,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:36,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:36,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,999 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,999 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,999 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,999 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:37,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:33:37,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,007 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,008 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,008 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:37,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:37,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:33:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 11:33:37,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:33:37,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:33:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:33:37,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:33:37,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:37,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:33:37,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:37,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:37,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,105 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:37,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:37,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:33:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,113 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,114 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,114 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:37,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:37,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:37,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:37,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:37,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,129 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-21 11:33:37,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956659756] [2020-09-21 11:33:37,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:33:37,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:33:37,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709184595] [2020-09-21 11:33:37,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:37,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:37,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:37,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:37,132 INFO L87 Difference]: Start difference. First operand 1187 states and 1448 transitions. Second operand 9 states. [2020-09-21 11:33:39,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:39,249 INFO L93 Difference]: Finished difference Result 3374 states and 4410 transitions. [2020-09-21 11:33:39,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:33:39,250 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-09-21 11:33:39,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:39,262 INFO L225 Difference]: With dead ends: 3374 [2020-09-21 11:33:39,263 INFO L226 Difference]: Without dead ends: 2207 [2020-09-21 11:33:39,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-21 11:33:39,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2020-09-21 11:33:39,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2094. [2020-09-21 11:33:39,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2094 states. [2020-09-21 11:33:39,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2534 transitions. [2020-09-21 11:33:39,431 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2534 transitions. Word has length 121 [2020-09-21 11:33:39,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:39,431 INFO L479 AbstractCegarLoop]: Abstraction has 2094 states and 2534 transitions. [2020-09-21 11:33:39,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:39,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2534 transitions. [2020-09-21 11:33:39,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-21 11:33:39,435 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:39,435 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:39,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:33:39,435 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:39,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:39,436 INFO L82 PathProgramCache]: Analyzing trace with hash 772889349, now seen corresponding path program 1 times [2020-09-21 11:33:39,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:39,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1861195820] [2020-09-21 11:33:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,469 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,469 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-21 11:33:39,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:39,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:39,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-09-21 11:33:39,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:39,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:39,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:39,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,545 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,545 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:39,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:39,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:39,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:39,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,596 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,596 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:39,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,600 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:39,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,605 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:39,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,612 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:39,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:33:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,641 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 11:33:39,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:39,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-21 11:33:39,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:33:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,656 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,656 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,656 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:33:39,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,664 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:39,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,671 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,671 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,671 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,679 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:39,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:33:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:39,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:33:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:39,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,713 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-21 11:33:39,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1861195820] [2020-09-21 11:33:39,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:39,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:33:39,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496802185] [2020-09-21 11:33:39,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:39,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:39,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:39,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:39,722 INFO L87 Difference]: Start difference. First operand 2094 states and 2534 transitions. Second operand 9 states. [2020-09-21 11:33:42,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:42,170 INFO L93 Difference]: Finished difference Result 5412 states and 6744 transitions. [2020-09-21 11:33:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:33:42,171 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-09-21 11:33:42,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:42,186 INFO L225 Difference]: With dead ends: 5412 [2020-09-21 11:33:42,186 INFO L226 Difference]: Without dead ends: 2420 [2020-09-21 11:33:42,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:33:42,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2020-09-21 11:33:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2326. [2020-09-21 11:33:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2326 states. [2020-09-21 11:33:42,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 2771 transitions. [2020-09-21 11:33:42,394 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 2771 transitions. Word has length 121 [2020-09-21 11:33:42,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:42,395 INFO L479 AbstractCegarLoop]: Abstraction has 2326 states and 2771 transitions. [2020-09-21 11:33:42,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:42,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 2771 transitions. [2020-09-21 11:33:42,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-21 11:33:42,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:42,405 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, 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] [2020-09-21 11:33:42,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:33:42,406 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:42,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:42,406 INFO L82 PathProgramCache]: Analyzing trace with hash 846884099, now seen corresponding path program 1 times [2020-09-21 11:33:42,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:42,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972213546] [2020-09-21 11:33:42,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,445 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,446 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-21 11:33:42,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:42,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-21 11:33:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:42,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:42,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,509 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:42,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:42,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:42,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,533 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,534 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:42,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:42,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:42,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:42,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,570 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:42,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:42,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:42,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,596 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,596 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:42,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:42,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,610 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:42,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:42,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:42,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 11:33:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:42,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:33:42,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 11:33:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:42,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:42,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:33:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,676 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 11:33:42,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:33:42,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:42,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:33:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,687 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:33:42,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,699 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:42,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,719 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,720 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,720 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:42,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:42,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:33:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,746 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 11:33:42,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:42,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-21 11:33:42,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:33:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,758 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,758 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:33:42,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,768 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 11:33:42,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,775 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:42,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,781 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:42,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-21 11:33:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,789 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,790 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:42,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:42,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,822 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-09-21 11:33:42,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972213546] [2020-09-21 11:33:42,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:33:42,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:33:42,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153267491] [2020-09-21 11:33:42,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:42,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:42,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:42,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:42,825 INFO L87 Difference]: Start difference. First operand 2326 states and 2771 transitions. Second operand 9 states. [2020-09-21 11:33:44,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:44,619 INFO L93 Difference]: Finished difference Result 4736 states and 5782 transitions. [2020-09-21 11:33:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:33:44,620 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2020-09-21 11:33:44,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:44,637 INFO L225 Difference]: With dead ends: 4736 [2020-09-21 11:33:44,637 INFO L226 Difference]: Without dead ends: 2431 [2020-09-21 11:33:44,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:33:44,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2020-09-21 11:33:44,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2316. [2020-09-21 11:33:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2316 states. [2020-09-21 11:33:44,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 2713 transitions. [2020-09-21 11:33:44,886 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 2713 transitions. Word has length 175 [2020-09-21 11:33:44,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:44,886 INFO L479 AbstractCegarLoop]: Abstraction has 2316 states and 2713 transitions. [2020-09-21 11:33:44,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:44,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 2713 transitions. [2020-09-21 11:33:44,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-21 11:33:44,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:44,896 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, 3, 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] [2020-09-21 11:33:44,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:33:44,897 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:44,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:44,897 INFO L82 PathProgramCache]: Analyzing trace with hash -797989467, now seen corresponding path program 1 times [2020-09-21 11:33:44,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:44,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363529357] [2020-09-21 11:33:44,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:44,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:44,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:44,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:44,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:44,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-21 11:33:44,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:44,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:33:44,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:44,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:44,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-21 11:33:44,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:44,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,031 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,031 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,031 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:45,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:45,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,045 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:45,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:45,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:45,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,088 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,088 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:45,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:45,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,103 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,103 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,103 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,103 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:45,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:45,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,120 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,120 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,121 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,121 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:45,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:45,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:45,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,129 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,129 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,129 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,129 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:45,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:33:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,157 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,157 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,157 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 11:33:45,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:33:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,166 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,167 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:33:45,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,174 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:45,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,182 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:45,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,188 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,188 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,188 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:45,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:33:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:45,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:45,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:45,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:45,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-09-21 11:33:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,224 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,225 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:45,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:33:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-21 11:33:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 11:33:45,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-21 11:33:45,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:33:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,255 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,255 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:33:45,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:45,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 11:33:45,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,273 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,274 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,274 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:45,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:45,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:45,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:45,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-21 11:33:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,289 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:45,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:45,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:45,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:45,354 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-21 11:33:45,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363529357] [2020-09-21 11:33:45,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:33:45,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:33:45,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986478034] [2020-09-21 11:33:45,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:45,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:45,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:45,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:45,357 INFO L87 Difference]: Start difference. First operand 2316 states and 2713 transitions. Second operand 10 states. [2020-09-21 11:33:47,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:47,856 INFO L93 Difference]: Finished difference Result 5270 states and 6249 transitions. [2020-09-21 11:33:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:33:47,856 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2020-09-21 11:33:47,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:47,867 INFO L225 Difference]: With dead ends: 5270 [2020-09-21 11:33:47,867 INFO L226 Difference]: Without dead ends: 1509 [2020-09-21 11:33:47,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:33:47,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2020-09-21 11:33:48,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1482. [2020-09-21 11:33:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1482 states. [2020-09-21 11:33:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1682 transitions. [2020-09-21 11:33:48,056 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1682 transitions. Word has length 176 [2020-09-21 11:33:48,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:48,056 INFO L479 AbstractCegarLoop]: Abstraction has 1482 states and 1682 transitions. [2020-09-21 11:33:48,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:48,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1682 transitions. [2020-09-21 11:33:48,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-21 11:33:48,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:48,061 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, 3, 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] [2020-09-21 11:33:48,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:33:48,061 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:48,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:48,062 INFO L82 PathProgramCache]: Analyzing trace with hash -421514357, now seen corresponding path program 1 times [2020-09-21 11:33:48,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:48,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756269347] [2020-09-21 11:33:48,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-21 11:33:48,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:33:48,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:33:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-21 11:33:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:33:48,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:48,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,219 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,220 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:48,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:48,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:48,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:48,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,241 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,241 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:48,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:48,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:48,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,255 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,255 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:48,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:48,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:48,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:48,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:33:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,284 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,285 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:48,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:48,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,300 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,300 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,300 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,301 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:48,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:48,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:33:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,316 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,316 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,316 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,317 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:48,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:33:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,348 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:48,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 11:33:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,356 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,356 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:48,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 11:33:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,398 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 11:33:48,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:48,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:48,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:48,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:33:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,421 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,421 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:33:48,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-21 11:33:48,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:48,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:48,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:48,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:48,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-21 11:33:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 11:33:48,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:33:48,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:48,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:48,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:33:48,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:33:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:33:48,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:33:48,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-21 11:33:48,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 11:33:48,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,583 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,583 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,584 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:48,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:48,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:48,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-21 11:33:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,605 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,605 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:48,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:48,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:48,665 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-09-21 11:33:48,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756269347] [2020-09-21 11:33:48,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:33:48,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:33:48,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253392326] [2020-09-21 11:33:48,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:33:48,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:48,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:33:48,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:33:48,669 INFO L87 Difference]: Start difference. First operand 1482 states and 1682 transitions. Second operand 12 states. [2020-09-21 11:33:51,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:51,051 INFO L93 Difference]: Finished difference Result 1718 states and 1960 transitions. [2020-09-21 11:33:51,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:33:51,051 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2020-09-21 11:33:51,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:51,053 INFO L225 Difference]: With dead ends: 1718 [2020-09-21 11:33:51,053 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:33:51,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:33:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:33:51,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:33:51,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:33:51,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:33:51,059 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2020-09-21 11:33:51,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:51,059 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:33:51,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:33:51,059 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:33:51,060 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:33:51,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:33:51,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:33:54,350 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2020-09-21 11:33:54,604 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2020-09-21 11:33:54,867 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2020-09-21 11:33:55,113 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2020-09-21 11:33:55,365 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2020-09-21 11:33:55,489 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2020-09-21 11:33:55,713 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2020-09-21 11:33:55,937 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2020-09-21 11:33:56,256 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2020-09-21 11:33:56,412 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2020-09-21 11:33:56,580 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2020-09-21 11:33:56,742 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-09-21 11:33:56,954 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2020-09-21 11:33:57,114 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2020-09-21 11:33:57,268 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2020-09-21 11:33:57,467 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-09-21 11:33:57,583 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-09-21 11:33:57,739 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-09-21 11:33:57,848 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2020-09-21 11:33:57,994 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-09-21 11:33:59,031 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 111 [2020-09-21 11:34:00,370 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2020-09-21 11:34:00,856 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2020-09-21 11:34:04,034 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2020-09-21 11:34:04,554 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-09-21 11:34:05,473 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2020-09-21 11:34:05,692 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-09-21 11:34:08,953 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-09-21 11:34:10,327 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-09-21 11:34:11,475 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2020-09-21 11:34:11,637 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2020-09-21 11:34:11,997 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-09-21 11:34:12,153 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-09-21 11:34:12,258 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-09-21 11:34:12,712 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2020-09-21 11:34:12,883 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2020-09-21 11:34:13,061 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2020-09-21 11:34:13,177 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2020-09-21 11:34:13,338 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-09-21 11:34:13,597 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2020-09-21 11:34:13,713 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2020-09-21 11:34:13,921 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2020-09-21 11:34:14,131 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2020-09-21 11:34:14,391 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2020-09-21 11:34:14,559 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-09-21 11:34:14,716 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66