/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 21:11:31,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 21:11:31,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 21:11:31,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 21:11:31,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 21:11:31,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 21:11:31,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 21:11:31,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 21:11:31,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 21:11:31,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 21:11:31,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 21:11:31,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 21:11:31,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 21:11:31,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 21:11:31,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 21:11:31,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 21:11:31,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 21:11:31,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 21:11:31,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 21:11:31,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 21:11:31,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 21:11:31,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 21:11:31,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 21:11:31,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 21:11:31,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 21:11:31,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 21:11:31,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 21:11:31,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 21:11:31,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 21:11:31,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 21:11:31,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 21:11:31,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 21:11:31,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 21:11:31,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 21:11:31,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 21:11:31,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 21:11:31,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 21:11:31,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 21:11:31,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 21:11:31,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 21:11:31,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 21:11:31,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 21:11:31,207 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 21:11:31,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 21:11:31,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 21:11:31,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 21:11:31,209 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 21:11:31,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 21:11:31,210 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 21:11:31,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 21:11:31,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 21:11:31,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 21:11:31,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 21:11:31,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 21:11:31,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 21:11:31,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 21:11:31,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 21:11:31,212 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 21:11:31,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 21:11:31,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 21:11:31,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 21:11:31,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 21:11:31,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 21:11:31,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 21:11:31,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 21:11:31,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 21:11:31,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 21:11:31,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 21:11:31,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 21:11:31,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 21:11:31,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 21:11:31,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 21:11:31,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 21:11:31,546 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 21:11:31,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 21:11:31,551 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 21:11:31,551 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 21:11:31,552 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.05.cil.c [2020-10-12 21:11:31,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9c2ac844/91b30e1de2af47cdba6163f6e54ab651/FLAG1986bf7d5 [2020-10-12 21:11:32,115 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 21:11:32,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.05.cil.c [2020-10-12 21:11:32,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9c2ac844/91b30e1de2af47cdba6163f6e54ab651/FLAG1986bf7d5 [2020-10-12 21:11:32,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9c2ac844/91b30e1de2af47cdba6163f6e54ab651 [2020-10-12 21:11:32,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 21:11:32,454 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 21:11:32,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 21:11:32,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 21:11:32,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 21:11:32,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:11:32" (1/1) ... [2020-10-12 21:11:32,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4c64fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32, skipping insertion in model container [2020-10-12 21:11:32,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:11:32" (1/1) ... [2020-10-12 21:11:32,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 21:11:32,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 21:11:32,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 21:11:32,765 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 21:11:32,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 21:11:32,940 INFO L208 MainTranslator]: Completed translation [2020-10-12 21:11:32,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32 WrapperNode [2020-10-12 21:11:32,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 21:11:32,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 21:11:32,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 21:11:32,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 21:11:32,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32" (1/1) ... [2020-10-12 21:11:32,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32" (1/1) ... [2020-10-12 21:11:32,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32" (1/1) ... [2020-10-12 21:11:32,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32" (1/1) ... [2020-10-12 21:11:32,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32" (1/1) ... [2020-10-12 21:11:32,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32" (1/1) ... [2020-10-12 21:11:32,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32" (1/1) ... [2020-10-12 21:11:33,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 21:11:33,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 21:11:33,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 21:11:33,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 21:11:33,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 21:11:33,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 21:11:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 21:11:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-12 21:11:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-10-12 21:11:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-10-12 21:11:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-10-12 21:11:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-10-12 21:11:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-10-12 21:11:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-10-12 21:11:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-10-12 21:11:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-10-12 21:11:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-10-12 21:11:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-10-12 21:11:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-10-12 21:11:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-10-12 21:11:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-12 21:11:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-12 21:11:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-12 21:11:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-12 21:11:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-12 21:11:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-12 21:11:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-12 21:11:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-12 21:11:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-12 21:11:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-12 21:11:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-12 21:11:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-12 21:11:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-12 21:11:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 21:11:33,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 21:11:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 21:11:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-12 21:11:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-10-12 21:11:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-10-12 21:11:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-10-12 21:11:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-10-12 21:11:33,088 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-10-12 21:11:33,088 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-10-12 21:11:33,088 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-12 21:11:33,088 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-10-12 21:11:33,088 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-10-12 21:11:33,088 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-10-12 21:11:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-10-12 21:11:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-10-12 21:11:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-10-12 21:11:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-12 21:11:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-12 21:11:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-12 21:11:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-12 21:11:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-12 21:11:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-12 21:11:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-12 21:11:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-12 21:11:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-12 21:11:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-12 21:11:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-12 21:11:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-12 21:11:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 21:11:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 21:11:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 21:11:33,793 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 21:11:33,793 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-12 21:11:33,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:11:33 BoogieIcfgContainer [2020-10-12 21:11:33,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 21:11:33,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 21:11:33,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 21:11:33,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 21:11:33,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:11:32" (1/3) ... [2020-10-12 21:11:33,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ccdce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:11:33, skipping insertion in model container [2020-10-12 21:11:33,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:11:32" (2/3) ... [2020-10-12 21:11:33,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ccdce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:11:33, skipping insertion in model container [2020-10-12 21:11:33,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:11:33" (3/3) ... [2020-10-12 21:11:33,809 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.05.cil.c [2020-10-12 21:11:33,820 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 21:11:33,829 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 21:11:33,846 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 21:11:33,873 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 21:11:33,874 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 21:11:33,874 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 21:11:33,874 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 21:11:33,874 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 21:11:33,875 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 21:11:33,875 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 21:11:33,875 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 21:11:33,904 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states. [2020-10-12 21:11:33,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-12 21:11:33,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:11:33,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:11:33,922 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:11:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:11:33,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1433392200, now seen corresponding path program 1 times [2020-10-12 21:11:33,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:11:33,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451205315] [2020-10-12 21:11:33,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:11:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:34,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:34,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:34,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:34,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:34,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:34,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:34,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:35,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:35,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:35,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:35,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:35,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:35,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:35,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:35,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:35,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:35,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:36,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:39,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:39,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 21:11:39,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-12 21:11:39,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-12 21:11:39,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 21:11:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:11:39,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 21:11:39,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-12 21:11:39,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:11:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:39,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:39,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:39,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:11:39,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:39,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 21:11:39,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:39,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:11:39,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:39,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:11:39,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:39,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:11:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:39,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:39,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:39,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:11:39,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:39,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 21:11:39,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:39,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:11:39,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:11:39,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 21:11:39,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:11:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:39,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:39,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:39,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:11:39,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:39,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:11:39,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:11:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:11:39,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:39,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:11:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:39,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:39,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:39,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:11:39,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:39,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 21:11:39,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:11:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:11:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:39,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:11:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:39,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:39,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:39,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:11:39,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:39,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 21:11:39,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:11:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:11:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:11:39,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:39,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:11:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:39,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:39,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:39,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:39,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:40,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:40,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:11:40,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 21:11:40,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 778 [2020-10-12 21:11:40,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:40,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 21:11:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:11:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 21:11:40,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:40,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:11:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:40,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:40,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:40,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:40,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 21:11:40,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:11:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:11:40,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:11:40,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:11:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:40,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:40,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:40,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:40,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:40,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:11:40,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:40,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:40,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:11:40,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:40,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:40,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:11:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:40,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:40,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:40,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:40,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:40,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 21:11:40,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:11:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:40,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:40,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:11:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:40,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:40,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:40,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:40,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:40,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:11:40,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:40,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:40,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:11:40,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:40,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:40,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:11:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:40,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:40,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:40,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:40,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:40,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:11:40,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:40,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:11:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:40,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 21:11:40,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:11:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:40,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:40,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:40,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:40,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:40,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:11:40,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:40,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:40,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:11:40,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:40,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:40,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:11:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:40,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:40,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:40,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:11:40,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:40,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 21:11:40,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:40,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 21:11:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:40,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:11:40,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:11:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:40,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:40,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:40,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:11:40,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:11:40,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:11:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 21:11:40,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451205315] [2020-10-12 21:11:40,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:11:40,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 21:11:40,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093003203] [2020-10-12 21:11:40,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 21:11:40,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:11:40,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 21:11:40,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 21:11:40,795 INFO L87 Difference]: Start difference. First operand 259 states. Second operand 14 states. [2020-10-12 21:11:40,981 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-12 21:11:46,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:11:46,551 INFO L93 Difference]: Finished difference Result 771 states and 1223 transitions. [2020-10-12 21:11:46,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 21:11:46,553 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 135 [2020-10-12 21:11:46,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:11:46,592 INFO L225 Difference]: With dead ends: 771 [2020-10-12 21:11:46,592 INFO L226 Difference]: Without dead ends: 523 [2020-10-12 21:11:46,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 21:11:46,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-10-12 21:11:46,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 326. [2020-10-12 21:11:46,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-12 21:11:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 440 transitions. [2020-10-12 21:11:46,731 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 440 transitions. Word has length 135 [2020-10-12 21:11:46,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:11:46,731 INFO L479 AbstractCegarLoop]: Abstraction has 326 states and 440 transitions. [2020-10-12 21:11:46,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 21:11:46,732 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 440 transitions. [2020-10-12 21:11:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-12 21:11:46,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:11:46,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:11:46,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 21:11:46,742 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:11:46,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:11:46,743 INFO L82 PathProgramCache]: Analyzing trace with hash -887275198, now seen corresponding path program 1 times [2020-10-12 21:11:46,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:11:46,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102136328] [2020-10-12 21:11:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:11:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:46,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:46,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:46,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:46,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:47,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:51,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:51,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 21:11:51,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 21:11:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 21:11:51,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 21:11:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:11:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 21:11:51,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:51,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:11:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:51,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:51,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:51,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:11:51,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:51,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 21:11:51,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:51,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:11:51,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:51,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:11:51,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:51,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:11:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:51,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:51,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:51,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:11:51,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:51,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:11:51,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:51,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:11:51,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:51,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:11:51,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:51,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:11:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:51,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:51,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:51,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:11:51,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:51,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:11:51,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:51,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:11:51,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:51,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:11:51,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:51,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:11:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:51,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:51,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:51,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:11:51,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:51,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 21:11:51,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:51,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:11:51,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:51,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:11:51,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:52,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:11:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:52,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:52,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:11:52,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:52,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 21:11:52,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:52,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:11:52,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:11:52,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:11:52,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:52,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:11:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:52,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:52,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:11:52,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 21:11:52,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-12 21:11:52,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:52,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 21:11:52,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-12 21:11:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 21:11:52,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:52,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:11:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:52,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:52,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:52,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:52,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:11:52,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:52,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:52,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:52,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:52,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:52,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:11:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:52,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:52,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:52,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:52,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:11:52,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:52,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:11:52,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:11:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:52,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:52,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:52,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:52,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 21:11:52,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:52,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:11:52,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:11:52,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:11:52,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:52,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:11:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:52,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:52,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:52,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:52,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:11:52,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:52,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:52,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:11:52,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:52,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:52,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:11:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:52,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:52,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:52,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:52,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:11:52,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:52,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:52,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:11:52,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:52,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 21:11:52,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:11:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:52,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:52,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:11:52,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:52,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 21:11:52,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:52,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:11:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:52,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 21:11:52,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:11:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:52,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:52,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:11:52,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:52,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 21:11:52,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 21:11:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:52,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:52,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:11:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:52,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:52,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:11:52,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:11:52,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:11:52,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:11:52,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:11:52,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:11:52,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:11:52,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:11:52,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:11:52,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 21:11:52,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102136328] [2020-10-12 21:11:52,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:11:52,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 21:11:52,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082165197] [2020-10-12 21:11:52,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 21:11:52,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:11:52,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 21:11:52,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-12 21:11:52,394 INFO L87 Difference]: Start difference. First operand 326 states and 440 transitions. Second operand 13 states. [2020-10-12 21:11:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:11:56,486 INFO L93 Difference]: Finished difference Result 834 states and 1221 transitions. [2020-10-12 21:11:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 21:11:56,487 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 135 [2020-10-12 21:11:56,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:11:56,493 INFO L225 Difference]: With dead ends: 834 [2020-10-12 21:11:56,493 INFO L226 Difference]: Without dead ends: 531 [2020-10-12 21:11:56,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-10-12 21:11:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-10-12 21:11:56,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 336. [2020-10-12 21:11:56,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-12 21:11:56,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 447 transitions. [2020-10-12 21:11:56,552 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 447 transitions. Word has length 135 [2020-10-12 21:11:56,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:11:56,552 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 447 transitions. [2020-10-12 21:11:56,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 21:11:56,553 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 447 transitions. [2020-10-12 21:11:56,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-12 21:11:56,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:11:56,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:11:56,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 21:11:56,556 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:11:56,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:11:56,556 INFO L82 PathProgramCache]: Analyzing trace with hash -276207550, now seen corresponding path program 1 times [2020-10-12 21:11:56,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:11:56,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872694319] [2020-10-12 21:11:56,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:11:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:11:56,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:56,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:56,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:56,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:56,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:56,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:56,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:56,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:56,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:56,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:56,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:57,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:57,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:57,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:57,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:11:59,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:01,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:01,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 21:12:01,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 21:12:01,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 21:12:01,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:01,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 21:12:01,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:12:01,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 21:12:01,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:01,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:12:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:01,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:01,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:01,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:01,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:01,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 21:12:01,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:12:01,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:01,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:12:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:01,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:01,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:01,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:01,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:01,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:12:01,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:12:01,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:01,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:12:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:01,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:01,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:01,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:12:01,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:01,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:12:01,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:01,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:12:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:01,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:01,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:01,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:12:01,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:01,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 21:12:01,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:01,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:01,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:01,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:12:01,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:01,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:12:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:01,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:01,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:01,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:01,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 21:12:01,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:12:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:12:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:12:01,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:01,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:12:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:01,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:01,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:01,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:02,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:02,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:12:02,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 21:12:02,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-12 21:12:02,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:02,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 21:12:02,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-12 21:12:02,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 21:12:02,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:02,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:12:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:02,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:02,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:02,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:02,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:02,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:12:02,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:02,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:02,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:02,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:02,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:02,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:12:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:02,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:02,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:02,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:02,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:12:02,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:02,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:02,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:12:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:02,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:02,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:02,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:02,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:02,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:02,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:02,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:02,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:02,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:02,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:12:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:02,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:02,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:02,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:02,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:02,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:12:02,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:02,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:02,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:12:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:02,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:02,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:02,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:02,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:02,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:02,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:02,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:02,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:02,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:02,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:02,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:12:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:02,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:02,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:02,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:02,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:02,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 21:12:02,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:02,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:12:02,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:02,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:12:02,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:02,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:12:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:02,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:02,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:02,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:02,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:02,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 21:12:02,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:12:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:12:02,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:12:02,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:02,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:12:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:02,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:02,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:02,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:02,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:02,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:02,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:02,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 21:12:02,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872694319] [2020-10-12 21:12:02,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:12:02,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 21:12:02,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534065132] [2020-10-12 21:12:02,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 21:12:02,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:12:02,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 21:12:02,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 21:12:02,278 INFO L87 Difference]: Start difference. First operand 336 states and 447 transitions. Second operand 14 states. [2020-10-12 21:12:07,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:12:07,667 INFO L93 Difference]: Finished difference Result 948 states and 1345 transitions. [2020-10-12 21:12:07,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 21:12:07,668 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 135 [2020-10-12 21:12:07,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:12:07,674 INFO L225 Difference]: With dead ends: 948 [2020-10-12 21:12:07,675 INFO L226 Difference]: Without dead ends: 635 [2020-10-12 21:12:07,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=363, Invalid=1277, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 21:12:07,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2020-10-12 21:12:07,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 407. [2020-10-12 21:12:07,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-10-12 21:12:07,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 527 transitions. [2020-10-12 21:12:07,737 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 527 transitions. Word has length 135 [2020-10-12 21:12:07,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:12:07,738 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 527 transitions. [2020-10-12 21:12:07,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 21:12:07,738 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 527 transitions. [2020-10-12 21:12:07,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-12 21:12:07,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:12:07,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:12:07,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 21:12:07,741 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:12:07,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:12:07,741 INFO L82 PathProgramCache]: Analyzing trace with hash 322012165, now seen corresponding path program 1 times [2020-10-12 21:12:07,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:12:07,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785330182] [2020-10-12 21:12:07,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:12:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:07,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:07,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:07,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:07,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:07,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:08,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:08,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:08,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:08,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:08,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:08,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:08,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:12,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:12,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:12,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:12,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 21:12:12,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 21:12:12,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 21:12:12,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:12,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 21:12:12,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:12:12,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 21:12:12,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:12,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:12:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:12,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:12,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:12,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:12,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:12,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 21:12:12,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:12,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:12,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:12,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:12:12,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:12,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:12:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:12,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:12,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:12,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:12,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:12,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:12:12,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:12,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:12,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:12,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:12:12,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:12,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:12:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:12,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:12,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:12,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:12:12,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:12,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:12,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:12,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:12,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:12,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:12:12,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:12,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:12:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:12:13,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 21:12:13,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:13,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:13,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:12:13,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:13,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:12:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:13,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 21:12:13,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:12:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:12:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:12:13,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:13,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:12:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:12:13,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 21:12:13,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:13,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 21:12:13,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:13,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:13,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:12:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:13,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:13,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:13,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:13,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:13,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:13,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:12:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:13,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:13,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:13,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:13,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:13,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:13,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:12:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:13,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:13,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:13,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:13,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:12:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:13,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:13,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:13,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:13,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:13,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:13,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:12:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:13,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:13,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:13,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:13,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:12:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:13,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:12:13,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:13,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:13,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:13,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:13,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:12:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:13,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 21:12:13,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:13,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 21:12:13,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:13,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:13,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:12:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:13,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:13,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:13,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:13,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:13,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:12:13,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:13,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:13,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:13,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:13,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:13,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 21:12:13,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785330182] [2020-10-12 21:12:13,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:12:13,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 21:12:13,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360386544] [2020-10-12 21:12:13,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 21:12:13,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:12:13,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 21:12:13,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-12 21:12:13,244 INFO L87 Difference]: Start difference. First operand 407 states and 527 transitions. Second operand 8 states. [2020-10-12 21:12:16,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:12:16,860 INFO L93 Difference]: Finished difference Result 1515 states and 2095 transitions. [2020-10-12 21:12:16,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 21:12:16,861 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 135 [2020-10-12 21:12:16,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:12:16,869 INFO L225 Difference]: With dead ends: 1515 [2020-10-12 21:12:16,869 INFO L226 Difference]: Without dead ends: 1131 [2020-10-12 21:12:16,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-12 21:12:16,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2020-10-12 21:12:16,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 776. [2020-10-12 21:12:16,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2020-10-12 21:12:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1009 transitions. [2020-10-12 21:12:16,969 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1009 transitions. Word has length 135 [2020-10-12 21:12:16,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:12:16,970 INFO L479 AbstractCegarLoop]: Abstraction has 776 states and 1009 transitions. [2020-10-12 21:12:16,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 21:12:16,970 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1009 transitions. [2020-10-12 21:12:16,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-12 21:12:16,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:12:16,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:12:16,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 21:12:16,973 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:12:16,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:12:16,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1987178180, now seen corresponding path program 1 times [2020-10-12 21:12:16,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:12:16,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831455366] [2020-10-12 21:12:16,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:12:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:17,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:17,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:17,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:17,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:17,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:17,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:17,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:17,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:17,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:19,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:19,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:19,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:19,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:19,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:20,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:20,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:21,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:21,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:21,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 21:12:21,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-12 21:12:21,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 21:12:21,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:21,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 21:12:21,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:12:21,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-12 21:12:21,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:12:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:22,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 21:12:22,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:22,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:12:22,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:12:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:22,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 21:12:22,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:22,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:12:22,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:12:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:12:22,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:22,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:12:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:12:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:12:22,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:12:22,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:12:22,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:12:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:22,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 21:12:22,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:12:22,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:12:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:12:22,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 21:12:22,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:22,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 21:12:22,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:12:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:22,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:22,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:22,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:22,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:12:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:22,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:22,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:22,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:22,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:12:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:22,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:22,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:22,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:12:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:22,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:22,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:22,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:22,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:12:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:22,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:22,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:22,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:22,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:12:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:22,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:22,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:22,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:12:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:22,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 21:12:22,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:22,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:12:22,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:12:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:22,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:22,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:22,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:22,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:22,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:12:22,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:12:22,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:22,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 21:12:22,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831455366] [2020-10-12 21:12:22,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:12:22,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 21:12:22,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448468472] [2020-10-12 21:12:22,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 21:12:22,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:12:22,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 21:12:22,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 21:12:22,344 INFO L87 Difference]: Start difference. First operand 776 states and 1009 transitions. Second operand 7 states. [2020-10-12 21:12:26,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:12:26,222 INFO L93 Difference]: Finished difference Result 2926 states and 4043 transitions. [2020-10-12 21:12:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 21:12:26,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2020-10-12 21:12:26,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:12:26,235 INFO L225 Difference]: With dead ends: 2926 [2020-10-12 21:12:26,236 INFO L226 Difference]: Without dead ends: 2174 [2020-10-12 21:12:26,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-12 21:12:26,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2020-10-12 21:12:26,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 1534. [2020-10-12 21:12:26,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1534 states. [2020-10-12 21:12:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2008 transitions. [2020-10-12 21:12:26,415 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2008 transitions. Word has length 135 [2020-10-12 21:12:26,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:12:26,416 INFO L479 AbstractCegarLoop]: Abstraction has 1534 states and 2008 transitions. [2020-10-12 21:12:26,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 21:12:26,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2008 transitions. [2020-10-12 21:12:26,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:12:26,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:12:26,419 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:12:26,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 21:12:26,420 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:12:26,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:12:26,420 INFO L82 PathProgramCache]: Analyzing trace with hash 2062685031, now seen corresponding path program 1 times [2020-10-12 21:12:26,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:12:26,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654931474] [2020-10-12 21:12:26,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:12:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:26,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:26,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:26,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:26,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:26,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:26,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:26,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:26,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:26,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:26,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:27,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:28,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:28,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:12:31,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 21:12:31,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 21:12:31,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 21:12:31,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:12:31,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 21:12:31,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 21:12:31,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:12:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:31,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 21:12:31,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:31,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:31,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:12:31,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:12:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:31,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:12:31,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:31,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:31,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:12:31,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:12:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:12:31,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:31,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:31,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:31,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:12:31,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:12:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:12:31,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:12:31,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:12:31,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:12:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:31,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 21:12:31,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:12:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:12:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:12:31,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:12:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:12:31,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 21:12:31,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 21:12:31,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:12:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:31,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:31,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:31,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:12:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:31,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:12:31,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 21:12:31,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:12:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:31,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:31,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:31,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:12:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:31,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:31,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:12:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:31,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:31,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:12:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:31,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:31,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:31,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:12:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:31,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:12:31,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 21:12:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:12:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:31,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:31,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:31,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:12:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:31,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:31,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:31,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:12:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:31,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:31,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:31,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:31,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:31,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:31,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:31,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:31,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 21:12:31,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654931474] [2020-10-12 21:12:31,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:12:31,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 21:12:31,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961096106] [2020-10-12 21:12:31,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 21:12:31,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:12:31,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 21:12:31,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 21:12:31,850 INFO L87 Difference]: Start difference. First operand 1534 states and 2008 transitions. Second operand 10 states. [2020-10-12 21:12:34,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:12:34,706 INFO L93 Difference]: Finished difference Result 3785 states and 5190 transitions. [2020-10-12 21:12:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 21:12:34,707 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-12 21:12:34,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:12:34,720 INFO L225 Difference]: With dead ends: 3785 [2020-10-12 21:12:34,720 INFO L226 Difference]: Without dead ends: 2274 [2020-10-12 21:12:34,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2020-10-12 21:12:34,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-10-12 21:12:34,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1562. [2020-10-12 21:12:34,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1562 states. [2020-10-12 21:12:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2034 transitions. [2020-10-12 21:12:34,913 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2034 transitions. Word has length 157 [2020-10-12 21:12:34,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:12:34,914 INFO L479 AbstractCegarLoop]: Abstraction has 1562 states and 2034 transitions. [2020-10-12 21:12:34,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 21:12:34,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2034 transitions. [2020-10-12 21:12:34,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:12:34,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:12:34,917 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:12:34,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 21:12:34,917 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:12:34,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:12:34,918 INFO L82 PathProgramCache]: Analyzing trace with hash 2078512235, now seen corresponding path program 1 times [2020-10-12 21:12:34,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:12:34,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463245365] [2020-10-12 21:12:34,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:12:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:34,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:34,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:35,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:35,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:35,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:35,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:35,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:35,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:35,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:36,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:36,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:36,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:37,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:39,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:39,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:12:39,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 21:12:39,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 21:12:39,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:39,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 21:12:39,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:12:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 21:12:39,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:12:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:40,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 21:12:40,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:40,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:12:40,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:12:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:40,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:12:40,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:40,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:40,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:12:40,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:12:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:12:40,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:40,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:12:40,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:12:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:12:40,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 21:12:40,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:40,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:40,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:12:40,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:12:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:40,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 21:12:40,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:12:40,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:12:40,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:12:40,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:12:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:12:40,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 21:12:40,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 21:12:40,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:12:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:40,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:40,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:12:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:40,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:40,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:40,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:12:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:40,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:40,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:40,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:12:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:40,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:40,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:12:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:40,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:40,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:12:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:40,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:40,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:12:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:40,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 21:12:40,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 21:12:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:12:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:40,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:12:40,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:40,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:12:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:40,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:12:40,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:40,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:12:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:40,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:40,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:40,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:40,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:40,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:40,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:40,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:12:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 21:12:40,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463245365] [2020-10-12 21:12:40,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:12:40,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 21:12:40,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981124388] [2020-10-12 21:12:40,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 21:12:40,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:12:40,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 21:12:40,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 21:12:40,450 INFO L87 Difference]: Start difference. First operand 1562 states and 2034 transitions. Second operand 10 states. [2020-10-12 21:12:43,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:12:43,315 INFO L93 Difference]: Finished difference Result 3813 states and 5200 transitions. [2020-10-12 21:12:43,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 21:12:43,316 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-12 21:12:43,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:12:43,328 INFO L225 Difference]: With dead ends: 3813 [2020-10-12 21:12:43,328 INFO L226 Difference]: Without dead ends: 2274 [2020-10-12 21:12:43,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2020-10-12 21:12:43,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-10-12 21:12:43,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1562. [2020-10-12 21:12:43,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1562 states. [2020-10-12 21:12:43,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2020 transitions. [2020-10-12 21:12:43,521 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2020 transitions. Word has length 157 [2020-10-12 21:12:43,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:12:43,522 INFO L479 AbstractCegarLoop]: Abstraction has 1562 states and 2020 transitions. [2020-10-12 21:12:43,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 21:12:43,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2020 transitions. [2020-10-12 21:12:43,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:12:43,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:12:43,527 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:12:43,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 21:12:43,528 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:12:43,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:12:43,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1534415335, now seen corresponding path program 1 times [2020-10-12 21:12:43,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:12:43,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761490480] [2020-10-12 21:12:43,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:12:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:43,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:43,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:43,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:43,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:43,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:43,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:43,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:44,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:44,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:45,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:45,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:45,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:12:48,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 21:12:48,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 21:12:48,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 21:12:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:12:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 21:12:48,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:12:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:48,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 21:12:48,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:48,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:48,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:12:48,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:12:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:48,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:12:48,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:12:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:12:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:12:48,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:48,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:12:48,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:12:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:12:48,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 21:12:48,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:48,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:48,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:12:48,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:12:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:48,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 21:12:48,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:12:48,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:12:48,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:12:48,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:12:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:12:48,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 21:12:48,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 21:12:48,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:12:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:48,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:48,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:12:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:48,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:48,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:48,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:12:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:48,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:48,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:12:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:48,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:48,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:48,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:12:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:48,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:48,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:12:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:48,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:48,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:12:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:48,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:12:48,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 21:12:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:12:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:48,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:48,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:48,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:12:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:48,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:48,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:12:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:48,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:48,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:48,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:48,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:48,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:48,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:48,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:48,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:48,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:48,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:48,925 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 21:12:48,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761490480] [2020-10-12 21:12:48,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:12:48,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 21:12:48,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852412869] [2020-10-12 21:12:48,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 21:12:48,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:12:48,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 21:12:48,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 21:12:48,928 INFO L87 Difference]: Start difference. First operand 1562 states and 2020 transitions. Second operand 11 states. [2020-10-12 21:12:51,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:12:51,847 INFO L93 Difference]: Finished difference Result 3813 states and 5164 transitions. [2020-10-12 21:12:51,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 21:12:51,848 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 157 [2020-10-12 21:12:51,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:12:51,860 INFO L225 Difference]: With dead ends: 3813 [2020-10-12 21:12:51,860 INFO L226 Difference]: Without dead ends: 2274 [2020-10-12 21:12:51,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2020-10-12 21:12:51,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-10-12 21:12:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1562. [2020-10-12 21:12:52,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1562 states. [2020-10-12 21:12:52,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2006 transitions. [2020-10-12 21:12:52,061 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2006 transitions. Word has length 157 [2020-10-12 21:12:52,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:12:52,062 INFO L479 AbstractCegarLoop]: Abstraction has 1562 states and 2006 transitions. [2020-10-12 21:12:52,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 21:12:52,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2006 transitions. [2020-10-12 21:12:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:12:52,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:12:52,065 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:12:52,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 21:12:52,066 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:12:52,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:12:52,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1847280619, now seen corresponding path program 1 times [2020-10-12 21:12:52,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:12:52,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455371233] [2020-10-12 21:12:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:12:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:52,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:52,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:52,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:52,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:52,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:52,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:52,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:52,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:52,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:52,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:52,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:12:57,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 21:12:57,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 21:12:57,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 21:12:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:12:57,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 21:12:57,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:12:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:57,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 21:12:57,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:12:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 21:12:57,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:12:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:12:57,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:57,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:12:57,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:12:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:12:57,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:57,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:12:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:12:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:12:57,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:12:57,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:12:57,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:57,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:12:57,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:12:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:57,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 21:12:57,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:12:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:12:57,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:12:57,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:12:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:12:57,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 21:12:57,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 21:12:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:12:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:57,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:12:57,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:57,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:12:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:57,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:12:57,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:57,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:12:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:57,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:12:57,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:12:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:57,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:12:57,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:57,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:12:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:57,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:12:57,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:12:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:12:57,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:12:57,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:12:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:12:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:12:57,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:12:57,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 21:12:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:12:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:57,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:57,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:12:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:57,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:57,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:57,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:12:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:12:57,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:12:57,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:12:57,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:12:57,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:12:57,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:12:57,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:12:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:12:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:12:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:12:57,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:12:57,404 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 21:12:57,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455371233] [2020-10-12 21:12:57,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:12:57,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 21:12:57,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693604836] [2020-10-12 21:12:57,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 21:12:57,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:12:57,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 21:12:57,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 21:12:57,407 INFO L87 Difference]: Start difference. First operand 1562 states and 2006 transitions. Second operand 10 states. [2020-10-12 21:13:02,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:13:02,131 INFO L93 Difference]: Finished difference Result 4161 states and 5694 transitions. [2020-10-12 21:13:02,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 21:13:02,132 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-12 21:13:02,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:13:02,151 INFO L225 Difference]: With dead ends: 4161 [2020-10-12 21:13:02,151 INFO L226 Difference]: Without dead ends: 2622 [2020-10-12 21:13:02,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-10-12 21:13:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2020-10-12 21:13:02,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 1834. [2020-10-12 21:13:02,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1834 states. [2020-10-12 21:13:02,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2304 transitions. [2020-10-12 21:13:02,407 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2304 transitions. Word has length 157 [2020-10-12 21:13:02,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:13:02,407 INFO L479 AbstractCegarLoop]: Abstraction has 1834 states and 2304 transitions. [2020-10-12 21:13:02,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 21:13:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2304 transitions. [2020-10-12 21:13:02,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:13:02,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:13:02,410 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:13:02,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 21:13:02,411 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:13:02,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:13:02,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1239885574, now seen corresponding path program 1 times [2020-10-12 21:13:02,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:13:02,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611438948] [2020-10-12 21:13:02,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:13:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:02,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:02,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:02,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:02,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:02,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:02,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:02,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:02,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:03,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:03,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:13:07,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 21:13:07,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 21:13:07,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 21:13:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:13:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 21:13:07,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:13:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:13:07,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 21:13:07,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:07,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:07,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:13:07,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:13:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:13:07,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:07,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:07,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:13:07,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:13:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:13:07,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:07,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:07,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:13:07,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:13:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:13:07,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:13:07,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:07,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:07,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:13:07,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:13:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:13:07,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 21:13:07,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:13:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:13:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:13:07,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:13:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:13:07,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 21:13:07,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 21:13:07,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 21:13:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 21:13:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 21:13:07,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:13:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:07,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:07,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:07,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:13:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:07,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:07,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:07,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:13:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:07,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:07,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:07,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:07,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:07,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:13:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:07,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:07,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:13:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:13:07,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:13:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:07,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:07,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:07,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:13:07,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:07,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:13:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:07,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:07,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:13:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:07,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:13:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:13:07,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:07,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 21:13:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:07,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:13:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:07,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:07,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:07,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:07,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:07,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:13:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:07,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:07,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:07,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:07,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:07,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:13:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:07,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:07,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:07,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:07,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:07,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:07,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:07,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:07,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:07,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:07,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:07,808 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 21:13:07,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611438948] [2020-10-12 21:13:07,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:13:07,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 21:13:07,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823537422] [2020-10-12 21:13:07,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 21:13:07,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:13:07,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 21:13:07,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-12 21:13:07,810 INFO L87 Difference]: Start difference. First operand 1834 states and 2304 transitions. Second operand 15 states. [2020-10-12 21:13:13,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:13:13,179 INFO L93 Difference]: Finished difference Result 4841 states and 6506 transitions. [2020-10-12 21:13:13,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 21:13:13,180 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 157 [2020-10-12 21:13:13,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:13:13,195 INFO L225 Difference]: With dead ends: 4841 [2020-10-12 21:13:13,195 INFO L226 Difference]: Without dead ends: 3030 [2020-10-12 21:13:13,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 21:13:13,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-10-12 21:13:13,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2126. [2020-10-12 21:13:13,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2126 states. [2020-10-12 21:13:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 2598 transitions. [2020-10-12 21:13:13,633 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 2598 transitions. Word has length 157 [2020-10-12 21:13:13,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:13:13,634 INFO L479 AbstractCegarLoop]: Abstraction has 2126 states and 2598 transitions. [2020-10-12 21:13:13,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 21:13:13,634 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 2598 transitions. [2020-10-12 21:13:13,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:13:13,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:13:13,638 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:13:13,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 21:13:13,639 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:13:13,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:13:13,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1639891016, now seen corresponding path program 1 times [2020-10-12 21:13:13,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:13:13,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542524391] [2020-10-12 21:13:13,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:13:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:13,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:13,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:13,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:13,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:13,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:13,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:13,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:14,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:16,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:16,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:13:18,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 21:13:18,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 21:13:18,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 21:13:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:13:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 21:13:18,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:13:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:13:18,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 21:13:18,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:13:18,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:13:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:13:18,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:18,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:18,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:18,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:13:18,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:13:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:13:18,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:18,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:18,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:18,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:13:18,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:13:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:13:18,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:13:18,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:13:18,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:13:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:13:18,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 21:13:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:13:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:13:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:13:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:13:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:13:18,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 21:13:18,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 21:13:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:13:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:18,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:18,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:13:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:18,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:18,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:13:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:18,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:18,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:13:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:18,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:18,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:18,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:13:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:18,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:18,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:13:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:18,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:18,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:13:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:13:18,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:13:18,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 21:13:18,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:13:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:18,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:18,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:13:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:18,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:18,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:13:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:18,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:18,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:18,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:18,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:18,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:18,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:18,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:18,956 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 21:13:18,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542524391] [2020-10-12 21:13:18,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:13:18,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 21:13:18,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769865739] [2020-10-12 21:13:18,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 21:13:18,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:13:18,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 21:13:18,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 21:13:18,959 INFO L87 Difference]: Start difference. First operand 2126 states and 2598 transitions. Second operand 10 states. [2020-10-12 21:13:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:13:22,240 INFO L93 Difference]: Finished difference Result 5429 states and 7058 transitions. [2020-10-12 21:13:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 21:13:22,241 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-12 21:13:22,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:13:22,256 INFO L225 Difference]: With dead ends: 5429 [2020-10-12 21:13:22,256 INFO L226 Difference]: Without dead ends: 3326 [2020-10-12 21:13:22,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-10-12 21:13:22,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2020-10-12 21:13:22,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 2386. [2020-10-12 21:13:22,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2386 states. [2020-10-12 21:13:22,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 2864 transitions. [2020-10-12 21:13:22,592 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 2864 transitions. Word has length 157 [2020-10-12 21:13:22,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:13:22,592 INFO L479 AbstractCegarLoop]: Abstraction has 2386 states and 2864 transitions. [2020-10-12 21:13:22,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 21:13:22,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 2864 transitions. [2020-10-12 21:13:22,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:13:22,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:13:22,595 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:13:22,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 21:13:22,596 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:13:22,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:13:22,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1887393117, now seen corresponding path program 1 times [2020-10-12 21:13:22,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:13:22,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389322914] [2020-10-12 21:13:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:13:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:22,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:22,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:22,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:22,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:22,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:22,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:23,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:13:27,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 21:13:27,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 21:13:27,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 21:13:27,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 21:13:27,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 21:13:27,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:13:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:13:27,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 21:13:27,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:13:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:13:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:13:27,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:27,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:27,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:27,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:13:27,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:13:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:13:27,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:27,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 21:13:27,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:13:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:13:27,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:13:27,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 21:13:27,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:13:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:13:27,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 21:13:27,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:13:27,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:13:27,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 21:13:27,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:13:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:13:27,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 21:13:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 21:13:27,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 21:13:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 21:13:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 21:13:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:13:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:27,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:27,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:27,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:27,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:27,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:13:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:27,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:27,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:13:27,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:27,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:13:27,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:13:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:27,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:27,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:13:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:27,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:13:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:27,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:27,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:13:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:27,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:13:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:27,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:27,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:13:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:27,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:13:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:27,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:27,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 21:13:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:27,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:13:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:13:27,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:27,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 21:13:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:27,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:13:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:27,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:27,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:27,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:13:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:27,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:27,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:27,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:27,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:27,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:13:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:27,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:27,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:27,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:27,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:27,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:27,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:27,984 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 21:13:27,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389322914] [2020-10-12 21:13:27,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:13:27,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 21:13:27,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400892163] [2020-10-12 21:13:27,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 21:13:27,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:13:27,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 21:13:27,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-12 21:13:27,986 INFO L87 Difference]: Start difference. First operand 2386 states and 2864 transitions. Second operand 14 states. [2020-10-12 21:13:32,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:13:32,083 INFO L93 Difference]: Finished difference Result 5711 states and 7306 transitions. [2020-10-12 21:13:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 21:13:32,084 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 157 [2020-10-12 21:13:32,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:13:32,099 INFO L225 Difference]: With dead ends: 5711 [2020-10-12 21:13:32,100 INFO L226 Difference]: Without dead ends: 3348 [2020-10-12 21:13:32,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2020-10-12 21:13:32,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3348 states. [2020-10-12 21:13:32,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3348 to 2406. [2020-10-12 21:13:32,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2406 states. [2020-10-12 21:13:32,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 2847 transitions. [2020-10-12 21:13:32,460 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 2847 transitions. Word has length 157 [2020-10-12 21:13:32,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:13:32,460 INFO L479 AbstractCegarLoop]: Abstraction has 2406 states and 2847 transitions. [2020-10-12 21:13:32,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 21:13:32,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 2847 transitions. [2020-10-12 21:13:32,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:13:32,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:13:32,463 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:13:32,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 21:13:32,464 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:13:32,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:13:32,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1118992861, now seen corresponding path program 1 times [2020-10-12 21:13:32,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:13:32,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785384379] [2020-10-12 21:13:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:13:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:32,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:32,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:32,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:32,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:32,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:33,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:33,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:36,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:36,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:36,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:36,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:36,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:36,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:13:37,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 21:13:37,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 21:13:37,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 21:13:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 21:13:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-12 21:13:37,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:13:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:13:37,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:37,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:37,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:13:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:13:37,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:37,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:37,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:37,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:13:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:13:37,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:37,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:37,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:37,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:13:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:13:37,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:13:37,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 21:13:37,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:13:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:13:37,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:13:37,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:13:37,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:13:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:13:37,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 21:13:37,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:13:37,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:13:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 21:13:37,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:13:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:37,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:13:37,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:37,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:13:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:37,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:13:37,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:37,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:13:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:37,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:13:37,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:37,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:13:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:37,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:37,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:37,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:13:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:37,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:13:37,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:37,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:13:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:37,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:37,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:37,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:13:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:13:37,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:37,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:13:37,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:13:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:37,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:37,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:13:37,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:13:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:37,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:37,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:13:37,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:13:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:37,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:37,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:37,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:37,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:37,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:13:37,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-12 21:13:37,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785384379] [2020-10-12 21:13:37,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:13:37,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 21:13:37,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392373776] [2020-10-12 21:13:37,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 21:13:37,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:13:37,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 21:13:37,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 21:13:37,857 INFO L87 Difference]: Start difference. First operand 2406 states and 2847 transitions. Second operand 9 states. [2020-10-12 21:13:44,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:13:44,163 INFO L93 Difference]: Finished difference Result 8820 states and 11460 transitions. [2020-10-12 21:13:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 21:13:44,163 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-10-12 21:13:44,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:13:44,193 INFO L225 Difference]: With dead ends: 8820 [2020-10-12 21:13:44,194 INFO L226 Difference]: Without dead ends: 6439 [2020-10-12 21:13:44,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2020-10-12 21:13:44,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6439 states. [2020-10-12 21:13:44,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6439 to 5020. [2020-10-12 21:13:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5020 states. [2020-10-12 21:13:44,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5020 states to 5020 states and 6231 transitions. [2020-10-12 21:13:44,826 INFO L78 Accepts]: Start accepts. Automaton has 5020 states and 6231 transitions. Word has length 157 [2020-10-12 21:13:44,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:13:44,827 INFO L479 AbstractCegarLoop]: Abstraction has 5020 states and 6231 transitions. [2020-10-12 21:13:44,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 21:13:44,827 INFO L276 IsEmpty]: Start isEmpty. Operand 5020 states and 6231 transitions. [2020-10-12 21:13:44,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:13:44,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:13:44,833 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:13:44,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 21:13:44,833 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:13:44,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:13:44,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1188640735, now seen corresponding path program 1 times [2020-10-12 21:13:44,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:13:44,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694075554] [2020-10-12 21:13:44,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:13:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:44,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:44,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:44,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:44,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:45,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:45,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:45,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:47,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:47,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:47,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:47,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:47,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:47,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:49,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:49,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:13:49,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 21:13:49,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 21:13:49,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 21:13:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 21:13:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 21:13:49,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:49,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:13:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:49,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:49,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:49,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:13:49,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:49,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:13:49,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:49,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:49,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:49,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:49,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:49,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:13:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:49,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:49,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:49,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:13:49,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:49,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:49,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:49,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:49,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:49,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:49,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:49,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:13:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:49,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:49,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:49,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:13:49,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:49,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:49,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:49,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:49,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:13:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:49,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:49,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:49,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:13:49,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:49,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:13:49,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:49,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:49,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:49,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:13:49,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:13:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:13:50,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:13:50,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:50,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:50,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:13:50,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:13:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:13:50,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 21:13:50,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:13:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:13:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 21:13:50,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:13:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:50,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:13:50,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:50,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:50,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:50,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:13:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:50,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:50,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:50,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:50,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:50,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:13:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:50,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:50,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:50,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:50,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:13:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:50,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:50,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:50,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:13:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:50,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:50,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:50,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:13:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:13:50,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:50,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:50,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:50,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:13:50,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:13:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:13:50,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:13:50,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:50,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:13:50,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:13:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:50,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:50,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:13:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:13:50,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:13:50,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:13:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:50,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:13:50,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:50,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:50,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:50,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:13:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:50,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:50,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:13:50,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:13:50,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:13:50,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:13:50,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:13:50,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:13:50,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:13:50,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:13:50,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:13:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-12 21:13:50,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694075554] [2020-10-12 21:13:50,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:13:50,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 21:13:50,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908116192] [2020-10-12 21:13:50,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 21:13:50,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:13:50,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 21:13:50,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 21:13:50,129 INFO L87 Difference]: Start difference. First operand 5020 states and 6231 transitions. Second operand 9 states. [2020-10-12 21:13:57,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:13:57,234 INFO L93 Difference]: Finished difference Result 18839 states and 27339 transitions. [2020-10-12 21:13:57,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 21:13:57,236 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-10-12 21:13:57,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:13:57,300 INFO L225 Difference]: With dead ends: 18839 [2020-10-12 21:13:57,300 INFO L226 Difference]: Without dead ends: 13850 [2020-10-12 21:13:57,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2020-10-12 21:13:57,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13850 states. [2020-10-12 21:13:58,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13850 to 9761. [2020-10-12 21:13:58,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9761 states. [2020-10-12 21:13:58,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9761 states to 9761 states and 12559 transitions. [2020-10-12 21:13:58,519 INFO L78 Accepts]: Start accepts. Automaton has 9761 states and 12559 transitions. Word has length 157 [2020-10-12 21:13:58,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:13:58,520 INFO L479 AbstractCegarLoop]: Abstraction has 9761 states and 12559 transitions. [2020-10-12 21:13:58,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 21:13:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 9761 states and 12559 transitions. [2020-10-12 21:13:58,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:13:58,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:13:58,529 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:13:58,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 21:13:58,530 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:13:58,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:13:58,530 INFO L82 PathProgramCache]: Analyzing trace with hash -947242467, now seen corresponding path program 1 times [2020-10-12 21:13:58,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:13:58,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214811202] [2020-10-12 21:13:58,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:13:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:13:58,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:58,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:58,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:58,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:58,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:58,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:59,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:59,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:59,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:59,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:59,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:13:59,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:14:00,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 21:14:00,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2026 [2020-10-12 21:14:00,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 21:14:00,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-12 21:14:00,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 21:14:00,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:14:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:14:00,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:14:00,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:14:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:14:00,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:00,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:00,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:00,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:14:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:14:00,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:14:00,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:00,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:00,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:14:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:14:00,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:14:00,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:00,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 21:14:00,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:14:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:14:00,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:14:00,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:00,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:14:00,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:14:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:14:00,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 21:14:00,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:14:00,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:14:00,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 21:14:00,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,877 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-12 21:14:00,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:14:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:00,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:00,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:00,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:00,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:14:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:00,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:00,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:00,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:14:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:00,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:00,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:00,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:00,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:14:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:00,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:00,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:00,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:00,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:14:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:00,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:00,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:00,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:14:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:00,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:00,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:00,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:14:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:14:00,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:14:00,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:14:00,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:14:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:14:00,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:00,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:00,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:00,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:14:00,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:14:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:14:00,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:14:00,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:14:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:00,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:14:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:00,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:00,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:00,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:14:00,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:00,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:14:00,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:14:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:00,956 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-12 21:14:00,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214811202] [2020-10-12 21:14:00,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:14:00,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 21:14:00,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266357776] [2020-10-12 21:14:00,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 21:14:00,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:14:00,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 21:14:00,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 21:14:00,958 INFO L87 Difference]: Start difference. First operand 9761 states and 12559 transitions. Second operand 9 states. [2020-10-12 21:14:08,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:14:08,643 INFO L93 Difference]: Finished difference Result 35499 states and 53697 transitions. [2020-10-12 21:14:08,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 21:14:08,644 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-10-12 21:14:08,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:14:08,756 INFO L225 Difference]: With dead ends: 35499 [2020-10-12 21:14:08,756 INFO L226 Difference]: Without dead ends: 25782 [2020-10-12 21:14:08,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2020-10-12 21:14:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25782 states. [2020-10-12 21:14:11,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25782 to 19153. [2020-10-12 21:14:11,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19153 states. [2020-10-12 21:14:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19153 states to 19153 states and 26241 transitions. [2020-10-12 21:14:11,287 INFO L78 Accepts]: Start accepts. Automaton has 19153 states and 26241 transitions. Word has length 157 [2020-10-12 21:14:11,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:14:11,288 INFO L479 AbstractCegarLoop]: Abstraction has 19153 states and 26241 transitions. [2020-10-12 21:14:11,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 21:14:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 19153 states and 26241 transitions. [2020-10-12 21:14:11,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 21:14:11,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:14:11,308 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:14:11,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 21:14:11,308 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:14:11,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:14:11,309 INFO L82 PathProgramCache]: Analyzing trace with hash -536632101, now seen corresponding path program 1 times [2020-10-12 21:14:11,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:14:11,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44354190] [2020-10-12 21:14:11,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:14:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:11,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:11,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:11,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:11,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:11,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:11,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:11,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:11,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:11,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 21:14:12,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 21:14:12,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1032 [2020-10-12 21:14:12,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 21:14:12,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-12 21:14:12,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 21:14:12,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:14:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:14:12,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:14:12,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:12,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:14:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:14:12,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:12,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:12,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:14:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:14:12,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:14:12,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:12,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:14:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:14:12,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:14:12,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:12,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:14:12,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:14:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:14:12,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:14:12,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:14:12,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:14:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:14:12,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 21:14:12,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:14:12,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:14:12,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 21:14:12,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:14:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:12,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:14:12,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:12,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:12,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:14:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:12,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:14:12,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:12,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:12,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:14:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:12,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:14:12,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:12,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:14:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:12,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:14:12,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:12,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:12,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:14:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:12,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:14:12,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:12,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:14:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:12,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:14:12,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:12,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:14:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:14:12,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:14:12,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:12,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:14:12,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:14:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:14:12,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 21:14:12,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:12,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:14:12,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 21:14:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:14:12,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:12,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:12,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:14:12,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:12,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 21:14:12,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 21:14:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:12,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:12,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:12,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:14:12,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:12,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:14:12,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 21:14:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:12,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:12,670 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 21:14:12,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44354190] [2020-10-12 21:14:12,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:14:12,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 21:14:12,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005140308] [2020-10-12 21:14:12,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 21:14:12,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:14:12,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 21:14:12,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 21:14:12,672 INFO L87 Difference]: Start difference. First operand 19153 states and 26241 transitions. Second operand 9 states. [2020-10-12 21:14:25,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:14:25,234 INFO L93 Difference]: Finished difference Result 73840 states and 129817 transitions. [2020-10-12 21:14:25,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 21:14:25,234 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-10-12 21:14:25,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:14:25,489 INFO L225 Difference]: With dead ends: 73840 [2020-10-12 21:14:25,489 INFO L226 Difference]: Without dead ends: 54759 [2020-10-12 21:14:25,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2020-10-12 21:14:25,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54759 states. [2020-10-12 21:14:30,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54759 to 40618. [2020-10-12 21:14:30,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40618 states. [2020-10-12 21:14:30,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40618 states to 40618 states and 61719 transitions. [2020-10-12 21:14:30,815 INFO L78 Accepts]: Start accepts. Automaton has 40618 states and 61719 transitions. Word has length 157 [2020-10-12 21:14:30,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 21:14:30,816 INFO L479 AbstractCegarLoop]: Abstraction has 40618 states and 61719 transitions. [2020-10-12 21:14:30,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 21:14:30,816 INFO L276 IsEmpty]: Start isEmpty. Operand 40618 states and 61719 transitions. [2020-10-12 21:14:30,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-12 21:14:30,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 21:14:30,863 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 21:14:30,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 21:14:30,863 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 21:14:30,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 21:14:30,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1717090953, now seen corresponding path program 1 times [2020-10-12 21:14:30,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 21:14:30,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377308099] [2020-10-12 21:14:30,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 21:14:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:30,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:30,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:30,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-12 21:14:31,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 21:14:31,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-10-12 21:14:31,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 21:14:31,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-12 21:14:31,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-12 21:14:31,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 21:14:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:14:31,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 21:14:31,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:31,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:31,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 21:14:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 21:14:31,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:31,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:31,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 21:14:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 21:14:31,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 21:14:31,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 21:14:31,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 21:14:31,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 21:14:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 21:14:31,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:14:31,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:31,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 21:14:31,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 21:14:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:14:31,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:14:31,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:31,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:14:31,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 21:14:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 21:14:31,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 21:14:31,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 21:14:31,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 21:14:31,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 21:14:31,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 21:14:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:31,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 21:14:31,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:31,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 21:14:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:31,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:31,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:31,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 21:14:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:31,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:31,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:31,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:31,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 21:14:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:31,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:31,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:31,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:31,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 21:14:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:31,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:31,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:31,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 21:14:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:31,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:31,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 21:14:31,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:31,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:31,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:31,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:31,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:31,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 21:14:31,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:31,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 21:14:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:31,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:32,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:32,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 21:14:32,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:32,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 21:14:32,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:32,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:32,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:32,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 21:14:32,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:32,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 21:14:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:32,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:32,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:32,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:32,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:14:32,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 21:14:32,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:32,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:32,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:32,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 21:14:32,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:14:32,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:32,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 21:14:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:32,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:32,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:32,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:14:32,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 21:14:32,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:32,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:32,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 21:14:32,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 21:14:32,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:32,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-12 21:14:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 21:14:32,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:32,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 21:14:32,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 21:14:32,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 21:14:32,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 21:14:32,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 21:14:32,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 21:14:32,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 21:14:32,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 21:14:32,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 21:14:32,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 21:14:32,055 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 21:14:32,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377308099] [2020-10-12 21:14:32,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 21:14:32,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 21:14:32,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592853767] [2020-10-12 21:14:32,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 21:14:32,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 21:14:32,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 21:14:32,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 21:14:32,057 INFO L87 Difference]: Start difference. First operand 40618 states and 61719 transitions. Second operand 11 states. [2020-10-12 21:14:50,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 21:14:50,517 INFO L93 Difference]: Finished difference Result 101890 states and 196331 transitions. [2020-10-12 21:14:50,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 21:14:50,518 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 159 [2020-10-12 21:14:50,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 21:14:50,842 INFO L225 Difference]: With dead ends: 101890 [2020-10-12 21:14:50,842 INFO L226 Difference]: Without dead ends: 61401 [2020-10-12 21:14:51,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 21:14:51,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61401 states.