/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:12:41,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:12:41,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:12:41,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:12:41,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:12:41,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:12:41,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:12:41,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:12:41,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:12:41,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:12:41,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:12:41,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:12:41,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:12:41,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:12:41,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:12:41,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:12:41,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:12:41,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:12:41,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:12:41,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:12:41,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:12:41,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:12:41,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:12:41,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:12:41,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:12:41,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:12:41,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:12:41,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:12:41,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:12:41,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:12:41,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:12:41,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:12:41,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:12:41,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:12:41,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:12:41,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:12:41,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:12:41,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:12:41,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:12:41,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:12:41,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:12:41,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:12:41,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:12:41,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:12:41,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:12:41,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:12:41,957 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:12:41,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:12:41,958 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:12:41,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:12:41,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:12:41,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:12:41,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:12:41,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:12:41,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:12:41,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:12:41,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:12:41,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:12:41,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:12:41,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:12:41,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:12:41,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:12:41,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:12:41,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:12:41,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:12:41,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:12:41,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:12:41,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:12:41,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:12:41,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:12:41,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:12:41,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 09:12:42,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:12:42,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:12:42,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:12:42,475 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:12:42,475 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:12:42,477 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-25 09:12:42,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3949aa4d/3549d0df59f6426fbb7a93b0373e26a0/FLAG1027535eb [2020-09-25 09:12:43,168 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:12:43,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-25 09:12:43,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3949aa4d/3549d0df59f6426fbb7a93b0373e26a0/FLAG1027535eb [2020-09-25 09:12:43,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3949aa4d/3549d0df59f6426fbb7a93b0373e26a0 [2020-09-25 09:12:43,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:12:43,524 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:12:43,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:12:43,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:12:43,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:12:43,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:12:43" (1/1) ... [2020-09-25 09:12:43,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218d3b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:43, skipping insertion in model container [2020-09-25 09:12:43,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:12:43" (1/1) ... [2020-09-25 09:12:43,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:12:43,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:12:43,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:12:43,933 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:12:43,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:12:44,083 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:12:44,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:44 WrapperNode [2020-09-25 09:12:44,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:12:44,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:12:44,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:12:44,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:12:44,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:44" (1/1) ... [2020-09-25 09:12:44,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:44" (1/1) ... [2020-09-25 09:12:44,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:44" (1/1) ... [2020-09-25 09:12:44,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:44" (1/1) ... [2020-09-25 09:12:44,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:44" (1/1) ... [2020-09-25 09:12:44,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:44" (1/1) ... [2020-09-25 09:12:44,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:44" (1/1) ... [2020-09-25 09:12:44,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:12:44,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:12:44,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:12:44,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:12:44,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:12:44,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:12:44,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:12:44,217 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-25 09:12:44,217 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2020-09-25 09:12:44,218 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-09-25 09:12:44,218 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-09-25 09:12:44,218 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-09-25 09:12:44,219 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-09-25 09:12:44,219 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-09-25 09:12:44,219 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-25 09:12:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-25 09:12:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-25 09:12:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-25 09:12:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-25 09:12:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-25 09:12:44,221 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-25 09:12:44,221 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-25 09:12:44,221 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-25 09:12:44,221 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-25 09:12:44,222 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-25 09:12:44,223 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-25 09:12:44,223 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:12:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:12:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:12:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-25 09:12:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2020-09-25 09:12:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-09-25 09:12:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-09-25 09:12:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-09-25 09:12:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-09-25 09:12:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-09-25 09:12:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-25 09:12:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-25 09:12:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-25 09:12:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-25 09:12:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-25 09:12:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-25 09:12:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-25 09:12:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-25 09:12:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-25 09:12:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-25 09:12:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-25 09:12:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-25 09:12:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:12:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:12:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:12:44,859 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L209: ~c_dr_st~0 := 2; [2020-09-25 09:12:44,860 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: ~c_dr_pc~0 := 2; [2020-09-25 09:12:44,860 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint L211: ~a_t~0 := ~a~0; [2020-09-25 09:12:44,860 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0; [2020-09-25 09:12:44,861 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2020-09-25 09:12:44,891 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:12:44,891 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 09:12:44,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:12:44 BoogieIcfgContainer [2020-09-25 09:12:44,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:12:44,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:12:44,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:12:44,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:12:44,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:12:43" (1/3) ... [2020-09-25 09:12:44,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c68c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:12:44, skipping insertion in model container [2020-09-25 09:12:44,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:44" (2/3) ... [2020-09-25 09:12:44,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c68c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:12:44, skipping insertion in model container [2020-09-25 09:12:44,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:12:44" (3/3) ... [2020-09-25 09:12:44,911 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2020-09-25 09:12:44,924 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:12:44,936 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:12:44,960 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:12:44,999 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:12:44,999 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:12:44,999 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:12:44,999 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:12:45,000 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:12:45,000 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:12:45,000 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:12:45,000 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:12:45,032 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states. [2020-09-25 09:12:45,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 09:12:45,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:12:45,052 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] [2020-09-25 09:12:45,053 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:12:45,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:12:45,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1849744024, now seen corresponding path program 1 times [2020-09-25 09:12:45,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:12:45,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106393662] [2020-09-25 09:12:45,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:12:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:45,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:45,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:46,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:46,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:47,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:47,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 09:12:50,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:12:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 09:12:50,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:50,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-09-25 09:12:50,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:12:50,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:12:50,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:12:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:50,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 09:12:50,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:50,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:12:50,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:50,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:50,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 09:12:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:50,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:12:50,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:50,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:12:50,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:50,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:50,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:12:50,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 09:12:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:50,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:12:50,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:50,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:12:50,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:50,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:50,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:12:50,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 09:12:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:50,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:50,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:12:50,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:50,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:50,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 09:12:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:50,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:12:50,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:50,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:12:50,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:50,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:50,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 09:12:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:50,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 09:12:50,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:50,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:12:50,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:50,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:50,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:12:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:50,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:12:50,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:50,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:12:50,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:50,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:50,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:50,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:50,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:12:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:50,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:12:50,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:50,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:12:50,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:50,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:50,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:50,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:50,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:12:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:50,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:12:50,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:50,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:12:50,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:50,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:50,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 09:12:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:50,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:50,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:50,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:12:50,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:50,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:50,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 09:12:50,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:12:50,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106393662] [2020-09-25 09:12:50,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:12:50,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:12:50,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429945631] [2020-09-25 09:12:50,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:12:50,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:12:51,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:12:51,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:12:51,007 INFO L87 Difference]: Start difference. First operand 264 states. Second operand 8 states. [2020-09-25 09:12:55,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:12:55,250 INFO L93 Difference]: Finished difference Result 968 states and 1466 transitions. [2020-09-25 09:12:55,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 09:12:55,252 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-09-25 09:12:55,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:12:55,282 INFO L225 Difference]: With dead ends: 968 [2020-09-25 09:12:55,282 INFO L226 Difference]: Without dead ends: 742 [2020-09-25 09:12:55,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2020-09-25 09:12:55,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-09-25 09:12:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 422. [2020-09-25 09:12:55,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-09-25 09:12:55,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 522 transitions. [2020-09-25 09:12:55,460 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 522 transitions. Word has length 132 [2020-09-25 09:12:55,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:12:55,461 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 522 transitions. [2020-09-25 09:12:55,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:12:55,465 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 522 transitions. [2020-09-25 09:12:55,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 09:12:55,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:12:55,477 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] [2020-09-25 09:12:55,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:12:55,478 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:12:55,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:12:55,478 INFO L82 PathProgramCache]: Analyzing trace with hash 719867291, now seen corresponding path program 1 times [2020-09-25 09:12:55,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:12:55,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [695209742] [2020-09-25 09:12:55,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:12:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:55,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:55,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:55,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:57,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-25 09:13:00,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:13:00,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 09:13:00,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 09:13:00,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 09:13:00,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:00,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:13:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:00,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 09:13:00,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:00,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:13:00,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:00,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:00,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:00,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:00,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 09:13:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:00,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:13:00,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:00,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 09:13:00,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:13:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:00,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 09:13:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:00,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:13:00,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:00,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:13:00,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:00,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:13:00,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:00,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 09:13:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:00,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:00,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:00,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:13:00,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:13:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:13:00,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:00,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 09:13:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:00,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:13:00,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:00,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:00,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:13:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:00,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 09:13:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:00,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 09:13:00,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:00,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:13:00,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:00,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 09:13:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:00,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:00,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:13:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:00,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:13:00,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:00,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:13:00,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:00,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:00,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:00,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:00,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:13:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:00,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:13:00,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:00,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:00,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:00,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:13:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:00,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:13:00,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:00,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:13:00,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:13:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:00,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:00,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 09:13:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:00,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:00,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:00,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:13:00,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:00,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:13:00,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:00,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 09:13:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:00,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:13:00,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [695209742] [2020-09-25 09:13:00,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:13:00,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 09:13:00,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286839282] [2020-09-25 09:13:00,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:13:00,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:13:00,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:13:00,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:13:00,933 INFO L87 Difference]: Start difference. First operand 422 states and 522 transitions. Second operand 9 states. [2020-09-25 09:13:03,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:13:03,557 INFO L93 Difference]: Finished difference Result 1055 states and 1450 transitions. [2020-09-25 09:13:03,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 09:13:03,558 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 133 [2020-09-25 09:13:03,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:13:03,574 INFO L225 Difference]: With dead ends: 1055 [2020-09-25 09:13:03,574 INFO L226 Difference]: Without dead ends: 688 [2020-09-25 09:13:03,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2020-09-25 09:13:03,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-09-25 09:13:03,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 413. [2020-09-25 09:13:03,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-09-25 09:13:03,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 507 transitions. [2020-09-25 09:13:03,685 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 507 transitions. Word has length 133 [2020-09-25 09:13:03,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:13:03,685 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 507 transitions. [2020-09-25 09:13:03,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:13:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 507 transitions. [2020-09-25 09:13:03,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 09:13:03,690 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:13:03,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:13:03,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:13:03,691 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:13:03,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:13:03,692 INFO L82 PathProgramCache]: Analyzing trace with hash -2100989043, now seen corresponding path program 1 times [2020-09-25 09:13:03,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:13:03,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614317458] [2020-09-25 09:13:03,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:13:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:03,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:03,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:04,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 09:13:08,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:13:08,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4599 [2020-09-25 09:13:08,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 09:13:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:13:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-25 09:13:08,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:08,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:13:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:08,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 09:13:08,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:08,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:13:08,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 09:13:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 09:13:08,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:08,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 09:13:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:08,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:13:08,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:08,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 09:13:08,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 09:13:08,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:08,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 09:13:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:08,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:13:08,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:08,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:13:08,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:13:08,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:08,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 09:13:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:08,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:08,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:08,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:13:08,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:13:08,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:08,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 09:13:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:08,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:13:08,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:08,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:13:08,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:13:08,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:08,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 09:13:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:08,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 09:13:08,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:08,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:13:08,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 09:13:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:08,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:13:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:08,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:13:08,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:08,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:08,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:08,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:08,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:13:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:08,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:13:08,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:08,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:08,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:08,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:08,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:13:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:08,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:13:08,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:08,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:13:08,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:08,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:08,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:13:08,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:08,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 09:13:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:08,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:08,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:08,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:08,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:08,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:13:08,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:08,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:08,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:08,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:08,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:13:08,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:13:08,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614317458] [2020-09-25 09:13:08,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:13:08,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 09:13:08,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599110567] [2020-09-25 09:13:08,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 09:13:08,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:13:08,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 09:13:08,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:13:08,734 INFO L87 Difference]: Start difference. First operand 413 states and 507 transitions. Second operand 12 states. [2020-09-25 09:13:15,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:13:15,346 INFO L93 Difference]: Finished difference Result 1719 states and 2429 transitions. [2020-09-25 09:13:15,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-09-25 09:13:15,346 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 136 [2020-09-25 09:13:15,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:13:15,358 INFO L225 Difference]: With dead ends: 1719 [2020-09-25 09:13:15,359 INFO L226 Difference]: Without dead ends: 1716 [2020-09-25 09:13:15,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=679, Invalid=2183, Unknown=0, NotChecked=0, Total=2862 [2020-09-25 09:13:15,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2020-09-25 09:13:15,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 813. [2020-09-25 09:13:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2020-09-25 09:13:15,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1016 transitions. [2020-09-25 09:13:15,445 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1016 transitions. Word has length 136 [2020-09-25 09:13:15,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:13:15,446 INFO L479 AbstractCegarLoop]: Abstraction has 813 states and 1016 transitions. [2020-09-25 09:13:15,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 09:13:15,446 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1016 transitions. [2020-09-25 09:13:15,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-09-25 09:13:15,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:13:15,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:13:15,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:13:15,449 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:13:15,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:13:15,449 INFO L82 PathProgramCache]: Analyzing trace with hash -706483812, now seen corresponding path program 1 times [2020-09-25 09:13:15,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:13:15,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327424972] [2020-09-25 09:13:15,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:13:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:15,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:15,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:16,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:16,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:16,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-25 09:13:16,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:13:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1391 [2020-09-25 09:13:16,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:16,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:13:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 09:13:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 09:13:16,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:16,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:13:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:16,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:16,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:16,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 09:13:16,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:16,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:13:16,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:16,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:16,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:16,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:16,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:16,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:17,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 09:13:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:17,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:17,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:17,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:13:17,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:17,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 09:13:17,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:17,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:17,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:17,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:17,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 09:13:17,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:17,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 09:13:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:17,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:17,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:17,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:13:17,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:17,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:13:17,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:17,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:13:17,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:17,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 09:13:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:17,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:17,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:17,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:17,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:17,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:13:17,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:17,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:13:17,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:17,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 09:13:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:17,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:17,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:17,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:13:17,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:13:17,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:17,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:13:17,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:17,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 09:13:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:17,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:17,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:17,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:17,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 09:13:17,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:13:17,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:13:17,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:17,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 09:13:17,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:17,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:13:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:17,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:17,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:17,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:13:17,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:17,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:17,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:17,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:17,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:17,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:17,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:17,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:17,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:13:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:17,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:17,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:17,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:13:17,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:17,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:17,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:17,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:13:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:17,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:17,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:17,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:13:17,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:17,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:17,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:17,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:17,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:17,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:17,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:13:17,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 09:13:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:17,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:17,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:17,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:17,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:17,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:13:17,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:17,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:17,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:17,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:17,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:13:17,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:17,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:13:17,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327424972] [2020-09-25 09:13:17,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:13:17,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 09:13:17,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152154061] [2020-09-25 09:13:17,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:13:17,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:13:17,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:13:17,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:13:17,210 INFO L87 Difference]: Start difference. First operand 813 states and 1016 transitions. Second operand 9 states. [2020-09-25 09:13:20,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:13:20,918 INFO L93 Difference]: Finished difference Result 2836 states and 4115 transitions. [2020-09-25 09:13:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 09:13:20,918 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 137 [2020-09-25 09:13:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:13:20,920 INFO L225 Difference]: With dead ends: 2836 [2020-09-25 09:13:20,920 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 09:13:20,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=247, Invalid=565, Unknown=0, NotChecked=0, Total=812 [2020-09-25 09:13:20,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 09:13:20,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 09:13:20,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 09:13:20,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 09:13:20,941 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 137 [2020-09-25 09:13:20,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:13:20,942 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 09:13:20,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:13:20,942 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 09:13:20,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 09:13:20,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:13:20,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 09:13:21,314 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2020-09-25 09:13:21,454 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 38 [2020-09-25 09:13:21,718 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2020-09-25 09:13:21,832 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 34 [2020-09-25 09:13:21,943 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 34 [2020-09-25 09:13:22,066 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 34 [2020-09-25 09:13:22,245 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2020-09-25 09:13:22,383 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 43 [2020-09-25 09:13:22,486 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 34 [2020-09-25 09:13:22,625 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2020-09-25 09:13:22,752 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 43 [2020-09-25 09:13:22,881 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 43 [2020-09-25 09:13:23,032 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 43 [2020-09-25 09:13:23,157 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 43 [2020-09-25 09:13:23,290 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 43 [2020-09-25 09:13:23,391 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2020-09-25 09:13:23,518 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2020-09-25 09:13:23,742 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2020-09-25 09:13:23,864 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 43 [2020-09-25 09:13:23,971 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2020-09-25 09:13:24,079 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2020-09-25 09:13:24,282 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 43 [2020-09-25 09:13:24,566 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2020-09-25 09:13:24,679 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 55 [2020-09-25 09:13:26,634 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2020-09-25 09:13:34,600 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2020-09-25 09:13:35,338 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81