/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/systemc/transmitter.04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 19:58:11,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 19:58:11,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 19:58:11,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 19:58:11,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 19:58:11,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 19:58:11,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 19:58:11,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 19:58:11,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 19:58:12,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 19:58:12,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 19:58:12,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 19:58:12,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 19:58:12,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 19:58:12,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 19:58:12,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 19:58:12,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 19:58:12,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 19:58:12,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 19:58:12,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 19:58:12,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 19:58:12,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 19:58:12,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 19:58:12,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 19:58:12,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 19:58:12,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 19:58:12,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 19:58:12,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 19:58:12,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 19:58:12,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 19:58:12,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 19:58:12,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 19:58:12,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 19:58:12,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 19:58:12,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 19:58:12,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 19:58:12,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 19:58:12,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 19:58:12,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 19:58:12,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 19:58:12,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 19:58:12,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 19:58:12,116 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 19:58:12,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 19:58:12,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 19:58:12,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 19:58:12,122 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 19:58:12,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 19:58:12,123 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 19:58:12,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 19:58:12,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 19:58:12,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 19:58:12,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 19:58:12,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 19:58:12,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 19:58:12,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 19:58:12,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 19:58:12,126 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 19:58:12,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 19:58:12,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 19:58:12,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 19:58:12,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 19:58:12,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 19:58:12,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 19:58:12,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 19:58:12,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 19:58:12,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 19:58:12,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 19:58:12,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 19:58:12,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 19:58:12,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 19:58:12,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 19:58:12,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 19:58:12,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 19:58:12,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 19:58:12,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 19:58:12,558 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 19:58:12,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.04.cil.c [2020-10-28 19:58:12,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a3bf12d8/893c3e03e87e4388aa352672a5467da6/FLAG12e849053 [2020-10-28 19:58:13,363 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 19:58:13,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.04.cil.c [2020-10-28 19:58:13,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a3bf12d8/893c3e03e87e4388aa352672a5467da6/FLAG12e849053 [2020-10-28 19:58:13,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a3bf12d8/893c3e03e87e4388aa352672a5467da6 [2020-10-28 19:58:13,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 19:58:13,696 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 19:58:13,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 19:58:13,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 19:58:13,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 19:58:13,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:58:13" (1/1) ... [2020-10-28 19:58:13,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7450f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:13, skipping insertion in model container [2020-10-28 19:58:13,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:58:13" (1/1) ... [2020-10-28 19:58:13,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 19:58:13,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 19:58:14,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:58:14,019 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 19:58:14,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:58:14,111 INFO L208 MainTranslator]: Completed translation [2020-10-28 19:58:14,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:14 WrapperNode [2020-10-28 19:58:14,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 19:58:14,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 19:58:14,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 19:58:14,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 19:58:14,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:14" (1/1) ... [2020-10-28 19:58:14,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:14" (1/1) ... [2020-10-28 19:58:14,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:14" (1/1) ... [2020-10-28 19:58:14,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:14" (1/1) ... [2020-10-28 19:58:14,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:14" (1/1) ... [2020-10-28 19:58:14,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:14" (1/1) ... [2020-10-28 19:58:14,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:14" (1/1) ... [2020-10-28 19:58:14,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 19:58:14,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 19:58:14,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 19:58:14,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 19:58:14,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 19:58:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 19:58:14,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 19:58:14,335 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 19:58:14,336 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-28 19:58:14,336 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-10-28 19:58:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-10-28 19:58:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-10-28 19:58:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-10-28 19:58:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-10-28 19:58:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-10-28 19:58:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-10-28 19:58:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-10-28 19:58:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-10-28 19:58:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-10-28 19:58:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-28 19:58:14,340 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-28 19:58:14,341 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-28 19:58:14,341 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-28 19:58:14,341 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-28 19:58:14,341 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-28 19:58:14,341 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-28 19:58:14,341 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-28 19:58:14,341 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-28 19:58:14,342 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-28 19:58:14,342 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-28 19:58:14,342 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-28 19:58:14,342 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-28 19:58:14,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 19:58:14,342 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 19:58:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 19:58:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 19:58:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 19:58:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 19:58:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-28 19:58:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-10-28 19:58:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-10-28 19:58:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-10-28 19:58:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-10-28 19:58:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-10-28 19:58:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-28 19:58:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-10-28 19:58:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-10-28 19:58:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-10-28 19:58:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-10-28 19:58:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-10-28 19:58:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-28 19:58:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-28 19:58:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-28 19:58:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-28 19:58:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-28 19:58:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-28 19:58:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-28 19:58:14,347 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-28 19:58:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-28 19:58:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-28 19:58:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-28 19:58:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-28 19:58:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 19:58:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 19:58:14,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 19:58:14,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 19:58:14,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 19:58:14,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 19:58:14,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 19:58:15,286 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 19:58:15,286 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-28 19:58:15,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:58:15 BoogieIcfgContainer [2020-10-28 19:58:15,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 19:58:15,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 19:58:15,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 19:58:15,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 19:58:15,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 07:58:13" (1/3) ... [2020-10-28 19:58:15,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58554e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:58:15, skipping insertion in model container [2020-10-28 19:58:15,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:58:14" (2/3) ... [2020-10-28 19:58:15,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58554e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:58:15, skipping insertion in model container [2020-10-28 19:58:15,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:58:15" (3/3) ... [2020-10-28 19:58:15,303 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.04.cil.c [2020-10-28 19:58:15,315 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 19:58:15,322 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 19:58:15,338 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 19:58:15,370 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 19:58:15,371 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 19:58:15,371 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 19:58:15,371 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 19:58:15,371 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 19:58:15,371 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 19:58:15,371 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 19:58:15,371 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 19:58:15,396 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2020-10-28 19:58:15,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:58:15,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:58:15,412 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] [2020-10-28 19:58:15,412 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:58:15,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:58:15,419 INFO L82 PathProgramCache]: Analyzing trace with hash -295484549, now seen corresponding path program 1 times [2020-10-28 19:58:15,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:58:15,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538848076] [2020-10-28 19:58:15,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:58:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:15,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:15,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:16,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:16,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:17,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:18,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:20,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:20,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:20,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:58:20,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-28 19:58:20,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 19:58:20,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:20,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:20,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:20,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 19:58:20,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:58:20,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 19:58:20,921 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:58:20,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:58:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:20,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:20,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:20,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:58:20,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:20,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:58:20,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:20,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:20,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:58:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:20,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:20,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:20,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:58:20,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:20,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:58:20,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:20,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:58:20,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:20,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:58:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:20,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:20,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:20,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:58:20,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:20,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:20,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:20,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:20,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:20,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:20,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:58:20,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:21,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:58:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:21,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:21,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:58:21,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:21,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:58:21,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:21,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 19:58:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:58:21,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:21,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:58:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:21,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:21,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:58:21,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:21,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:58:21,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:21,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:21,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:21,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 19:58:21,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:21,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:21,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 19:58:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:21,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:21,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:58:21,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:58:21,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-28 19:58:21,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:21,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:21,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:58:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:21,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:21,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:58:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:21,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:21,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:21,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:21,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:21,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:21,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:21,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:21,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:21,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:21,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:21,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:58:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:21,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:21,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:21,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:21,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:21,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:21,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:21,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:21,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:21,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:58:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:21,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:21,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:21,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:21,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:58:21,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:21,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:21,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:21,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:58:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:21,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:21,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:21,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:21,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:21,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:21,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:21,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:21,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:21,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:21,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:21,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:58:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:21,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:21,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:21,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:21,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:21,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:21,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:21,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:21,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:21,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:21,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:58:21,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 19:58:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:21,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:21,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:58:21,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:21,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:58:21,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:21,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 19:58:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:21,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:21,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 19:58:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:21,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:21,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:21,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:58:21,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:21,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:21,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:21,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:21,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:58:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:21,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:58:21,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538848076] [2020-10-28 19:58:21,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:58:21,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:58:21,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157037450] [2020-10-28 19:58:21,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:58:21,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:58:21,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:58:21,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:58:21,465 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 8 states. [2020-10-28 19:58:21,670 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 19:58:21,907 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:58:22,128 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-10-28 19:58:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:58:25,341 INFO L93 Difference]: Finished difference Result 579 states and 908 transitions. [2020-10-28 19:58:25,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 19:58:25,344 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-28 19:58:25,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:58:25,364 INFO L225 Difference]: With dead ends: 579 [2020-10-28 19:58:25,365 INFO L226 Difference]: Without dead ends: 350 [2020-10-28 19:58:25,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-28 19:58:25,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-10-28 19:58:25,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 221. [2020-10-28 19:58:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-28 19:58:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 305 transitions. [2020-10-28 19:58:25,489 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 305 transitions. Word has length 121 [2020-10-28 19:58:25,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:58:25,489 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 305 transitions. [2020-10-28 19:58:25,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:58:25,489 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 305 transitions. [2020-10-28 19:58:25,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:58:25,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:58:25,495 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] [2020-10-28 19:58:25,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 19:58:25,495 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:58:25,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:58:25,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1684778563, now seen corresponding path program 1 times [2020-10-28 19:58:25,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:58:25,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123004045] [2020-10-28 19:58:25,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:58:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:25,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:25,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:25,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:25,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:26,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:28,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:30,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:30,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:58:30,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-28 19:58:30,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-28 19:58:30,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:30,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:58:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:58:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 19:58:30,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 19:58:30,757 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:58:30,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:58:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:30,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:30,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:30,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:58:30,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 19:58:30,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:30,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:30,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:58:30,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:58:30,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:58:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:30,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:30,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:30,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:58:30,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:30,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:58:30,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:30,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:58:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:58:30,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:58:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:30,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:30,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:30,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:58:30,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:30,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:58:30,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:30,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:58:30,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:58:30,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:58:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:30,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:30,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:30,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:58:30,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:30,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:58:30,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:30,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:58:30,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:58:30,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:58:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:30,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:30,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:30,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:58:30,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:30,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:58:30,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:30,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 19:58:30,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:30,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 19:58:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:30,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:30,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:31,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:31,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:31,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:58:31,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:58:31,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-28 19:58:31,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:31,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:31,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:31,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 19:58:31,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 19:58:31,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:58:31,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:58:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:31,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:31,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:31,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:31,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:31,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:31,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:31,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:31,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:31,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:31,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:31,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:31,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:58:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:31,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:31,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:31,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:31,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:31,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:58:31,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:31,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:31,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:31,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:31,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:31,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:58:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:31,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:31,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:31,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:31,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:31,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:31,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:31,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:31,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:58:31,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:58:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:31,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:31,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:31,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:31,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:31,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:58:31,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:31,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:31,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:31,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:31,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:58:31,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:31,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:58:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:31,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:31,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:31,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:31,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:31,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:58:31,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:31,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:31,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:31,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:31,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:58:31,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:31,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 19:58:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:31,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:31,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:31,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:58:31,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:31,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:58:31,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:31,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:31,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:31,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 19:58:31,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:31,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:31,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 19:58:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:31,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:31,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:31,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:58:31,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:31,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:31,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:58:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:31,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:58:31,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123004045] [2020-10-28 19:58:31,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:58:31,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:58:31,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038398852] [2020-10-28 19:58:31,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:58:31,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:58:31,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:58:31,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:58:31,410 INFO L87 Difference]: Start difference. First operand 221 states and 305 transitions. Second operand 8 states. [2020-10-28 19:58:31,567 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:58:33,224 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:58:36,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:58:36,297 INFO L93 Difference]: Finished difference Result 858 states and 1295 transitions. [2020-10-28 19:58:36,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:58:36,298 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-28 19:58:36,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:58:36,306 INFO L225 Difference]: With dead ends: 858 [2020-10-28 19:58:36,307 INFO L226 Difference]: Without dead ends: 660 [2020-10-28 19:58:36,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-10-28 19:58:36,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2020-10-28 19:58:36,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 425. [2020-10-28 19:58:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-10-28 19:58:36,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 594 transitions. [2020-10-28 19:58:36,444 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 594 transitions. Word has length 121 [2020-10-28 19:58:36,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:58:36,445 INFO L481 AbstractCegarLoop]: Abstraction has 425 states and 594 transitions. [2020-10-28 19:58:36,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:58:36,445 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 594 transitions. [2020-10-28 19:58:36,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:58:36,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:58:36,448 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] [2020-10-28 19:58:36,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 19:58:36,448 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:58:36,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:58:36,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1502060094, now seen corresponding path program 1 times [2020-10-28 19:58:36,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:58:36,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030338377] [2020-10-28 19:58:36,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:58:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:36,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:36,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:36,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:36,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:36,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:38,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:38,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:38,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:38,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:39,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:39,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:39,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:39,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:39,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:39,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:40,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:41,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:41,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:58:41,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-28 19:58:41,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 19:58:41,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:41,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:58:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-28 19:58:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 19:58:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:41,656 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:58:41,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:58:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:41,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:41,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:41,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:58:41,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:41,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:58:41,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:41,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:41,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:41,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:58:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:41,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:41,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:41,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:58:41,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:41,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:41,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:41,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:41,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:41,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:41,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:41,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:41,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:58:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:41,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:41,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:41,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:58:41,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:41,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:58:41,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:41,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:41,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:41,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:41,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:41,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:41,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:58:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:41,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:41,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:41,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:58:41,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:41,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:58:41,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:41,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:41,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:41,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:41,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:41,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:41,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:58:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:41,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:41,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:41,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:58:41,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:41,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:58:41,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:41,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:58:41,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:41,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 19:58:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:41,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:41,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:41,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:42,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:42,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:42,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:42,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:58:42,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:58:42,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-10-28 19:58:42,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:42,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:42,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-28 19:58:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:42,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:58:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:42,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:42,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:42,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:42,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:42,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:58:42,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:42,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:42,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:42,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:42,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:42,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:42,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:58:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:42,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:42,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:42,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:42,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:42,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:58:42,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:42,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:42,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:42,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:58:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:42,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:42,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:42,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:42,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:42,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:58:42,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:42,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:42,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:42,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:42,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:42,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:42,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:58:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:42,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:42,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:42,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:42,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:58:42,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:42,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:42,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:42,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:58:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:42,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:42,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:42,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:42,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:42,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:58:42,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:42,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:42,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:42,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 19:58:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:42,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:42,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:42,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:58:42,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:42,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 19:58:42,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:42,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:58:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:58:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 19:58:42,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:42,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 19:58:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:42,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:42,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:42,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:58:42,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:42,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:58:42,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:42,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:58:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:42,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:42,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:58:42,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030338377] [2020-10-28 19:58:42,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:58:42,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:58:42,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126627937] [2020-10-28 19:58:42,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:58:42,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:58:42,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:58:42,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:58:42,938 INFO L87 Difference]: Start difference. First operand 425 states and 594 transitions. Second operand 9 states. [2020-10-28 19:58:43,635 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:58:43,992 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 19:58:52,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:58:52,147 INFO L93 Difference]: Finished difference Result 2292 states and 3777 transitions. [2020-10-28 19:58:52,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-28 19:58:52,147 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 19:58:52,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:58:52,172 INFO L225 Difference]: With dead ends: 2292 [2020-10-28 19:58:52,172 INFO L226 Difference]: Without dead ends: 1890 [2020-10-28 19:58:52,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2020-10-28 19:58:52,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2020-10-28 19:58:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1356. [2020-10-28 19:58:52,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1356 states. [2020-10-28 19:58:52,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 2048 transitions. [2020-10-28 19:58:52,394 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 2048 transitions. Word has length 121 [2020-10-28 19:58:52,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:58:52,395 INFO L481 AbstractCegarLoop]: Abstraction has 1356 states and 2048 transitions. [2020-10-28 19:58:52,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:58:52,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 2048 transitions. [2020-10-28 19:58:52,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:58:52,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:58:52,398 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] [2020-10-28 19:58:52,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 19:58:52,399 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:58:52,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:58:52,399 INFO L82 PathProgramCache]: Analyzing trace with hash 771959930, now seen corresponding path program 1 times [2020-10-28 19:58:52,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:58:52,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091376919] [2020-10-28 19:58:52,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:58:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:52,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:52,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:52,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:52,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:54,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:54,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:54,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:54,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:54,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:54,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:54,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:54,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:55,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:56,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:57,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:57,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:58:57,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-28 19:58:57,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 19:58:57,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:57,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:58:57,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:58:57,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 19:58:57,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:57,617 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:58:57,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:58:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:57,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:57,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:57,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:58:57,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 19:58:57,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:57,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:58:57,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:57,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:58:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:57,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:57,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:57,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:58:57,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:57,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:58:57,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:57,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:57,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:57,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:57,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:58:57,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:57,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:58:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:57,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:57,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:57,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:58:57,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:57,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:58:57,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:57,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:58:57,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:57,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:58:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:57,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:57,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:57,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:58:57,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:57,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:58:57,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:57,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:57,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:57,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:58:57,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:57,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:58:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:57,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:57,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:57,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:58:57,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 19:58:57,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:57,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:58:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:58:57,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 19:58:57,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:57,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 19:58:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:57,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:57,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:57,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:58,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:58,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:58,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:58:58,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:58:58,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 959 [2020-10-28 19:58:58,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:58,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:58,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:58,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 19:58:58,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 19:58:58,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:58,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:58:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:58,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:58,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:58,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:58,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:58,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:58:58,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:58,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:58,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:58,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:58,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:58,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:58,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:58:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:58,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:58,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:58,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:58,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:58,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:58:58,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:58,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:58,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:58:58,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:58,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:58:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:58,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:58,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:58,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:58,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:58:58,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:58,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:58,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:58,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:58:58,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:58,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:58:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:58,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:58,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:58,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:58,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:58,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:58,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:58,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:58,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:58,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:58,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:58:58,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:58,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:58:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:58,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:58,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:58,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:58:58,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:58,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:58:58,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:58,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:58:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:58:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:58:58,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:58,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 19:58:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:58,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:58,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:58,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:58:58,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:58,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:58:58,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:58,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:58,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:58,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 19:58:58,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:58,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:58,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 19:58:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:58:58,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:58:58,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:58:58,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:58:58,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:58:58,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:58:58,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:58:58,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:58:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:58:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:58:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:58:58,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:58:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:58:58,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091376919] [2020-10-28 19:58:58,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:58:58,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 19:58:58,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015611320] [2020-10-28 19:58:58,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 19:58:58,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:58:58,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 19:58:58,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 19:58:58,876 INFO L87 Difference]: Start difference. First operand 1356 states and 2048 transitions. Second operand 10 states. [2020-10-28 19:58:59,040 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:59:00,671 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:59:03,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:59:03,218 INFO L93 Difference]: Finished difference Result 2600 states and 4015 transitions. [2020-10-28 19:59:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 19:59:03,228 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-28 19:59:03,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:59:03,242 INFO L225 Difference]: With dead ends: 2600 [2020-10-28 19:59:03,242 INFO L226 Difference]: Without dead ends: 1435 [2020-10-28 19:59:03,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2020-10-28 19:59:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2020-10-28 19:59:03,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1041. [2020-10-28 19:59:03,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-10-28 19:59:03,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1504 transitions. [2020-10-28 19:59:03,392 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1504 transitions. Word has length 121 [2020-10-28 19:59:03,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:59:03,392 INFO L481 AbstractCegarLoop]: Abstraction has 1041 states and 1504 transitions. [2020-10-28 19:59:03,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 19:59:03,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1504 transitions. [2020-10-28 19:59:03,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:59:03,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:59:03,395 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] [2020-10-28 19:59:03,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 19:59:03,395 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:59:03,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:59:03,395 INFO L82 PathProgramCache]: Analyzing trace with hash -689419459, now seen corresponding path program 1 times [2020-10-28 19:59:03,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:59:03,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719968618] [2020-10-28 19:59:03,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:59:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:03,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:03,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:03,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:03,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:03,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:03,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:08,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:08,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:59:08,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:59:08,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 19:59:08,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:08,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:08,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:59:08,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:59:08,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 19:59:08,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:08,571 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:59:08,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:59:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:08,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:08,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:08,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:59:08,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:08,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 19:59:08,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:08,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:08,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:08,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:08,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:59:08,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:59:08,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:59:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:08,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:08,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:08,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:59:08,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:08,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:59:08,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:08,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:08,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:08,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:08,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:59:08,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:59:08,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:59:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:08,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:08,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:08,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:59:08,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:08,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:08,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:08,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:08,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:59:08,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:08,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:59:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:08,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:08,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:08,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:59:08,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:08,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:59:08,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:08,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:59:08,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:59:08,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:59:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:08,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:08,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:08,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:59:08,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:08,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 19:59:08,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:08,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:59:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:59:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 19:59:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:59:08,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 19:59:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:08,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:08,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:08,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:08,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:09,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:10,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:10,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:59:10,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:59:10,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2099 [2020-10-28 19:59:10,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:10,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:10,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:10,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:59:10,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:10,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:10,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:59:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:10,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:10,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:10,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:10,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:10,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:10,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:10,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:10,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:10,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:10,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:10,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:10,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:59:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:10,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:10,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:10,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:10,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:10,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:10,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:10,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:10,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:10,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:10,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:59:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:10,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:10,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:10,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:10,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:10,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:10,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:10,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:10,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:10,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:10,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:10,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:10,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:59:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:10,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:10,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:10,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:10,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:10,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:10,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:10,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:10,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:59:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:10,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:10,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:10,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:10,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:10,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:10,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:10,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:10,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:10,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:10,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:10,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:10,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 19:59:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:10,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:10,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:10,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:59:10,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:10,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:59:10,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:10,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:10,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:10,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 19:59:10,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:10,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:10,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 19:59:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:10,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:10,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:10,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:59:10,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:10,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:10,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:10,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:10,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:10,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:59:10,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:10,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:59:10,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719968618] [2020-10-28 19:59:10,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:59:10,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:59:10,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648201183] [2020-10-28 19:59:10,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:59:10,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:59:10,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:59:10,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:59:10,988 INFO L87 Difference]: Start difference. First operand 1041 states and 1504 transitions. Second operand 9 states. [2020-10-28 19:59:11,136 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:59:13,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:59:13,999 INFO L93 Difference]: Finished difference Result 2402 states and 3600 transitions. [2020-10-28 19:59:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 19:59:14,002 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 19:59:14,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:59:14,013 INFO L225 Difference]: With dead ends: 2402 [2020-10-28 19:59:14,013 INFO L226 Difference]: Without dead ends: 1383 [2020-10-28 19:59:14,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-28 19:59:14,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2020-10-28 19:59:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1041. [2020-10-28 19:59:14,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-10-28 19:59:14,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1496 transitions. [2020-10-28 19:59:14,170 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1496 transitions. Word has length 121 [2020-10-28 19:59:14,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:59:14,171 INFO L481 AbstractCegarLoop]: Abstraction has 1041 states and 1496 transitions. [2020-10-28 19:59:14,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:59:14,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1496 transitions. [2020-10-28 19:59:14,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:59:14,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:59:14,173 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] [2020-10-28 19:59:14,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 19:59:14,173 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:59:14,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:59:14,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1704811133, now seen corresponding path program 1 times [2020-10-28 19:59:14,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:59:14,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976907636] [2020-10-28 19:59:14,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:59:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:14,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:14,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:14,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:14,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:14,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:14,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:15,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:15,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:15,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:15,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:15,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:19,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:19,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:59:19,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 19:59:19,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 19:59:19,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:19,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:59:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:59:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 19:59:19,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:19,346 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:59:19,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:59:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:19,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:19,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:19,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:59:19,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:19,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 19:59:19,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:19,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:19,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:19,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:19,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:59:19,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:19,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:59:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:19,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:19,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:19,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:59:19,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:19,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:59:19,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:19,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:59:19,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:19,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:59:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:19,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:19,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:19,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:59:19,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:19,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:19,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:59:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:19,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:59:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:19,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:19,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:19,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:59:19,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:19,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:59:19,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:19,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:59:19,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:19,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:59:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:19,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:19,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:19,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:59:19,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:59:19,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:19,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 19:59:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:19,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 19:59:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:19,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:19,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:19,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:19,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:19,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:22,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:22,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:59:22,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:59:22,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2597 [2020-10-28 19:59:22,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:22,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:22,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:22,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:59:22,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 19:59:22,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:22,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:59:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:22,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:22,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:22,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:22,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:22,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:59:22,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:22,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:59:22,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:22,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:59:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:22,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:22,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:22,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:22,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:22,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:59:22,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:22,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:22,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:22,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:22,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:59:22,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:22,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:59:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:22,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:22,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:22,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:22,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:22,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:59:22,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:22,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:22,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:22,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:22,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:59:22,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:22,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:59:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:22,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:22,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:22,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:22,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:22,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:59:22,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:22,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:22,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:22,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:22,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:59:22,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:22,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:59:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:22,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:22,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:22,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:22,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:22,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:22,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:22,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:59:22,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:22,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 19:59:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:22,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:22,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:22,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:59:22,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:22,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:59:22,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:22,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:22,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:22,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 19:59:22,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:22,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 19:59:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:22,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:22,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:22,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:59:22,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:22,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:22,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:22,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:59:22,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:22,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:59:22,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976907636] [2020-10-28 19:59:22,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:59:22,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:59:22,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795931719] [2020-10-28 19:59:22,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:59:22,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:59:22,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:59:22,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:59:22,173 INFO L87 Difference]: Start difference. First operand 1041 states and 1496 transitions. Second operand 8 states. [2020-10-28 19:59:22,331 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:59:24,426 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:59:27,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:59:27,766 INFO L93 Difference]: Finished difference Result 3031 states and 4466 transitions. [2020-10-28 19:59:27,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:59:27,767 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-28 19:59:27,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:59:27,781 INFO L225 Difference]: With dead ends: 3031 [2020-10-28 19:59:27,781 INFO L226 Difference]: Without dead ends: 2013 [2020-10-28 19:59:27,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-10-28 19:59:27,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2020-10-28 19:59:27,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1450. [2020-10-28 19:59:27,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2020-10-28 19:59:27,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1990 transitions. [2020-10-28 19:59:27,993 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1990 transitions. Word has length 121 [2020-10-28 19:59:27,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:59:27,994 INFO L481 AbstractCegarLoop]: Abstraction has 1450 states and 1990 transitions. [2020-10-28 19:59:27,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:59:27,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1990 transitions. [2020-10-28 19:59:27,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:59:27,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:59:27,996 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] [2020-10-28 19:59:27,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 19:59:27,997 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:59:27,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:59:27,997 INFO L82 PathProgramCache]: Analyzing trace with hash -280017572, now seen corresponding path program 1 times [2020-10-28 19:59:27,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:59:27,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697123425] [2020-10-28 19:59:27,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:59:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:28,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:28,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:28,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:28,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:28,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:28,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:28,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:33,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:33,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:59:33,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:59:33,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-28 19:59:33,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:33,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:59:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:59:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 19:59:33,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:33,164 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:59:33,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:59:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:33,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:33,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:33,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:59:33,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:33,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 19:59:33,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:33,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:59:33,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:33,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:59:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:33,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:33,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:33,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:59:33,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:33,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:59:33,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:33,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:59:33,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:33,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:59:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:33,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:33,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:33,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:59:33,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:33,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:33,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:33,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:33,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:33,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:33,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:59:33,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:33,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:59:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:33,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:33,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:33,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:59:33,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:59:33,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:33,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:59:33,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:33,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:59:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:33,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:33,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:33,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:59:33,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:33,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 19:59:33,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:33,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:59:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:59:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 19:59:33,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:33,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 19:59:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:33,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:33,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:33,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:33,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:33,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:36,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:38,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:38,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:59:38,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:59:38,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 19:59:38,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:38,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:59:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:38,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:38,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:59:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:38,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:38,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:38,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:38,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:38,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:59:38,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:38,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:38,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:38,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:38,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:38,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:38,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:59:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:38,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:38,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:38,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:38,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:38,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:59:38,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:38,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:38,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:38,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:38,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:38,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:38,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:59:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:38,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:38,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:38,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:38,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:38,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:59:38,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:38,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:38,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:38,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:38,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:59:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:38,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:38,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:38,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:38,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:59:38,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:38,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:38,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:38,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:59:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:38,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:38,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:38,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:38,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:38,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:38,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:38,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:38,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:38,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:38,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 19:59:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:38,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:38,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:38,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:59:38,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:38,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:59:38,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:38,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 19:59:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:38,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 19:59:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:38,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:38,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:38,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:59:38,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:38,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:38,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:59:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:38,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:59:38,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697123425] [2020-10-28 19:59:38,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:59:38,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:59:38,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465961203] [2020-10-28 19:59:38,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:59:38,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:59:38,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:59:38,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:59:38,417 INFO L87 Difference]: Start difference. First operand 1450 states and 1990 transitions. Second operand 9 states. [2020-10-28 19:59:38,576 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:59:41,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:59:41,480 INFO L93 Difference]: Finished difference Result 3415 states and 4865 transitions. [2020-10-28 19:59:41,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 19:59:41,481 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 19:59:41,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:59:41,493 INFO L225 Difference]: With dead ends: 3415 [2020-10-28 19:59:41,494 INFO L226 Difference]: Without dead ends: 1993 [2020-10-28 19:59:41,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-28 19:59:41,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2020-10-28 19:59:41,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1450. [2020-10-28 19:59:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2020-10-28 19:59:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1977 transitions. [2020-10-28 19:59:41,714 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1977 transitions. Word has length 121 [2020-10-28 19:59:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:59:41,714 INFO L481 AbstractCegarLoop]: Abstraction has 1450 states and 1977 transitions. [2020-10-28 19:59:41,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:59:41,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1977 transitions. [2020-10-28 19:59:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:59:41,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:59:41,716 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] [2020-10-28 19:59:41,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 19:59:41,716 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:59:41,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:59:41,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1971379044, now seen corresponding path program 1 times [2020-10-28 19:59:41,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:59:41,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697116418] [2020-10-28 19:59:41,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:59:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:41,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:41,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:41,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:41,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:41,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:41,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:42,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:46,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:46,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:46,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:46,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:46,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:59:46,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 19:59:46,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-28 19:59:46,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:46,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:46,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:59:46,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:59:46,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 19:59:46,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:46,908 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 19:59:46,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:59:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:46,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:46,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:46,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:59:46,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:46,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 19:59:46,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:46,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:46,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:46,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:46,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:59:46,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:46,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:59:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:46,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:46,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:46,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:59:46,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:46,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:59:46,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:46,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:46,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:46,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:46,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:59:46,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:59:46,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:59:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:46,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:46,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:46,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:59:46,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:46,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:46,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:46,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:46,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:46,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:46,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:59:46,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:46,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:59:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:46,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:46,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:46,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:59:46,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:46,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:59:46,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:46,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:59:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:59:46,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:47,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:59:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:47,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:47,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:47,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:59:47,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:47,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 19:59:47,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:47,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:59:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:59:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 19:59:47,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:47,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 19:59:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:47,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:47,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:47,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:47,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:47,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:48,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:52,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:52,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:59:52,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:59:52,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:59:52,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:52,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:52,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:52,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:59:52,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:52,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:52,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:59:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:52,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:52,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:52,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:52,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:59:52,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:52,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:52,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:59:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:52,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:52,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:52,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:52,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:52,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:59:52,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:52,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:52,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:52,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:52,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:52,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:52,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:59:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:52,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:52,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:52,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:52,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:52,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:59:52,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:52,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:52,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:52,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:52,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:52,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:52,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:59:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:52,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:52,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:52,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:52,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:52,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:59:52,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:52,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:52,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:52,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:59:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:52,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:52,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:52,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:59:52,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:52,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:59:52,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:52,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:52,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:52,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:59:52,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:52,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:52,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 19:59:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:52,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:52,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:52,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 19:59:52,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:52,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:59:52,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:52,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:52,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:52,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 19:59:52,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:52,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:52,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 19:59:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:52,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:52,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:59:52,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:59:52,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:59:52,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:59:52,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:59:52,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:59:52,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:59:52,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:59:52,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:59:52,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:59:52,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:59:52,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697116418] [2020-10-28 19:59:52,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:59:52,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:59:52,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370997700] [2020-10-28 19:59:52,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:59:52,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:59:52,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:59:52,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:59:52,131 INFO L87 Difference]: Start difference. First operand 1450 states and 1977 transitions. Second operand 9 states. [2020-10-28 19:59:52,296 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 19:59:55,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:59:55,936 INFO L93 Difference]: Finished difference Result 3643 states and 5287 transitions. [2020-10-28 19:59:55,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 19:59:55,937 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 19:59:55,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:59:55,951 INFO L225 Difference]: With dead ends: 3643 [2020-10-28 19:59:55,951 INFO L226 Difference]: Without dead ends: 2226 [2020-10-28 19:59:55,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-10-28 19:59:55,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2020-10-28 19:59:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1616. [2020-10-28 19:59:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1616 states. [2020-10-28 19:59:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2158 transitions. [2020-10-28 19:59:56,293 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2158 transitions. Word has length 121 [2020-10-28 19:59:56,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:59:56,294 INFO L481 AbstractCegarLoop]: Abstraction has 1616 states and 2158 transitions. [2020-10-28 19:59:56,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:59:56,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2158 transitions. [2020-10-28 19:59:56,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:59:56,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:59:56,297 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] [2020-10-28 19:59:56,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 19:59:56,298 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:59:56,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:59:56,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1043381596, now seen corresponding path program 1 times [2020-10-28 19:59:56,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:59:56,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818524995] [2020-10-28 19:59:56,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:59:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:59:56,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:56,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:56,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:56,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:56,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:56,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:59:56,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:01,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 20:00:01,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 20:00:01,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-28 20:00:01,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:01,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 20:00:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 20:00:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 20:00:01,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:01,513 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 20:00:01,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 20:00:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:01,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:01,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:00:01,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:01,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 20:00:01,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:01,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:01,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:01,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:01,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 20:00:01,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:01,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 20:00:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:01,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:01,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:00:01,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:01,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:00:01,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:01,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 20:00:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 20:00:01,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 20:00:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:01,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:01,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 20:00:01,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:01,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:01,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:01,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 20:00:01,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:01,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 20:00:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:01,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:01,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 20:00:01,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:01,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 20:00:01,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:01,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 20:00:01,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:01,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 20:00:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:01,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:01,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:00:01,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:01,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 20:00:01,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:01,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:01,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 20:00:01,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 20:00:01,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 20:00:01,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:01,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 20:00:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:01,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:01,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:03,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:06,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:06,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 20:00:06,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 20:00:06,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 20:00:06,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:06,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 20:00:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:06,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:06,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 20:00:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:06,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:06,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:06,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:06,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:06,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:06,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:06,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:06,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:06,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 20:00:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:06,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:06,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:06,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:06,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:06,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:06,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:06,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:06,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:06,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:06,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:06,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 20:00:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:06,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:06,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:06,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:06,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:06,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:06,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:06,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:06,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:06,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 20:00:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:06,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:06,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:06,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:06,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:06,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:06,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:06,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:06,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:06,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:06,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:06,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:06,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 20:00:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:06,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:06,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:06,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:06,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:06,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:06,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:06,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:06,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:06,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 20:00:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:06,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:06,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:06,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:00:06,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:06,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:00:06,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:06,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 20:00:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:06,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 20:00:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:06,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:06,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:06,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 20:00:06,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:06,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:06,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:06,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 20:00:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:06,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 20:00:06,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818524995] [2020-10-28 20:00:06,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 20:00:06,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 20:00:06,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898103824] [2020-10-28 20:00:06,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 20:00:06,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 20:00:06,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 20:00:06,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 20:00:06,742 INFO L87 Difference]: Start difference. First operand 1616 states and 2158 transitions. Second operand 10 states. [2020-10-28 20:00:06,903 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 20:00:10,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 20:00:10,121 INFO L93 Difference]: Finished difference Result 3794 states and 5245 transitions. [2020-10-28 20:00:10,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 20:00:10,122 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-28 20:00:10,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 20:00:10,136 INFO L225 Difference]: With dead ends: 3794 [2020-10-28 20:00:10,136 INFO L226 Difference]: Without dead ends: 2207 [2020-10-28 20:00:10,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-28 20:00:10,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2020-10-28 20:00:10,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 1616. [2020-10-28 20:00:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1616 states. [2020-10-28 20:00:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2145 transitions. [2020-10-28 20:00:10,410 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2145 transitions. Word has length 121 [2020-10-28 20:00:10,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 20:00:10,410 INFO L481 AbstractCegarLoop]: Abstraction has 1616 states and 2145 transitions. [2020-10-28 20:00:10,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 20:00:10,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2145 transitions. [2020-10-28 20:00:10,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 20:00:10,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 20:00:10,412 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] [2020-10-28 20:00:10,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 20:00:10,412 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 20:00:10,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 20:00:10,413 INFO L82 PathProgramCache]: Analyzing trace with hash 434632220, now seen corresponding path program 1 times [2020-10-28 20:00:10,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 20:00:10,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450122686] [2020-10-28 20:00:10,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 20:00:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:10,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:10,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:10,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:10,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:10,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:10,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:10,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:15,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 20:00:15,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 20:00:15,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 20:00:15,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:15,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 20:00:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 20:00:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 20:00:15,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:15,578 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 20:00:15,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 20:00:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:15,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:15,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:00:15,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:15,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 20:00:15,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:15,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 20:00:15,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:15,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 20:00:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:15,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:15,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:00:15,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:15,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:15,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:15,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 20:00:15,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:15,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 20:00:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:15,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:15,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 20:00:15,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:15,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:15,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 20:00:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:15,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 20:00:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:15,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:15,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 20:00:15,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:00:15,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:15,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 20:00:15,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:15,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 20:00:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:15,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:15,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:00:15,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:15,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 20:00:15,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:15,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 20:00:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 20:00:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 20:00:15,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 20:00:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:15,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:15,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:17,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:20,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:20,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 20:00:20,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 20:00:20,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 20:00:20,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:20,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:20,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:20,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 20:00:20,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:20,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:20,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 20:00:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:20,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:20,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:20,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:20,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:20,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:20,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:20,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:20,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:20,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 20:00:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:20,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:20,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:20,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:20,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:20,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:20,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:20,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:20,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:20,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 20:00:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:20,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:20,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:20,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:20,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:20,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:20,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:20,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:20,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:20,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 20:00:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:20,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:20,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:20,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:20,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:20,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:20,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:20,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:20,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:20,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 20:00:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:20,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:20,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:20,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:20,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:20,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:20,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:20,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:20,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:20,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:20,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:20,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 20:00:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:20,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:20,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:20,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:00:20,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:20,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 20:00:20,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:20,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 20:00:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:20,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:20,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 20:00:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:20,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:20,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:20,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 20:00:20,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:20,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:20,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:20,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 20:00:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:20,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:20,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 20:00:20,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450122686] [2020-10-28 20:00:20,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 20:00:20,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 20:00:20,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248570447] [2020-10-28 20:00:20,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 20:00:20,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 20:00:20,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 20:00:20,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 20:00:20,769 INFO L87 Difference]: Start difference. First operand 1616 states and 2145 transitions. Second operand 10 states. [2020-10-28 20:00:20,928 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 20:00:22,387 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 20:00:24,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 20:00:24,617 INFO L93 Difference]: Finished difference Result 4490 states and 6477 transitions. [2020-10-28 20:00:24,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 20:00:24,618 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-28 20:00:24,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 20:00:24,638 INFO L225 Difference]: With dead ends: 4490 [2020-10-28 20:00:24,638 INFO L226 Difference]: Without dead ends: 2906 [2020-10-28 20:00:24,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-10-28 20:00:24,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2020-10-28 20:00:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1945. [2020-10-28 20:00:24,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2020-10-28 20:00:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2519 transitions. [2020-10-28 20:00:24,977 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2519 transitions. Word has length 121 [2020-10-28 20:00:24,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 20:00:24,978 INFO L481 AbstractCegarLoop]: Abstraction has 1945 states and 2519 transitions. [2020-10-28 20:00:24,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 20:00:24,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2519 transitions. [2020-10-28 20:00:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 20:00:24,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 20:00:24,980 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] [2020-10-28 20:00:24,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 20:00:24,980 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 20:00:24,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 20:00:24,981 INFO L82 PathProgramCache]: Analyzing trace with hash -597068452, now seen corresponding path program 1 times [2020-10-28 20:00:24,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 20:00:24,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985287582] [2020-10-28 20:00:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 20:00:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:25,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:25,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:25,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:25,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:25,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:25,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:26,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:30,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:30,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 20:00:30,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 20:00:30,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 20:00:30,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:30,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:30,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 20:00:30,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 20:00:30,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 20:00:30,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:30,150 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 20:00:30,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 20:00:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:30,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:30,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:30,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:00:30,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:30,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 20:00:30,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:30,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 20:00:30,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:30,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 20:00:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:30,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:30,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:30,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:00:30,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:30,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:00:30,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:30,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 20:00:30,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:30,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 20:00:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:30,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:30,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:30,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 20:00:30,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:30,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:30,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:30,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 20:00:30,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:30,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 20:00:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:30,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:30,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:30,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 20:00:30,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:30,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 20:00:30,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:30,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 20:00:30,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:30,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 20:00:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:30,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:30,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:30,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:00:30,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:30,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 20:00:30,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:30,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:30,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 20:00:30,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 20:00:30,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 20:00:30,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:30,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 20:00:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:30,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:30,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:30,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:30,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:30,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:32,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:35,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:35,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 20:00:35,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 20:00:35,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 20:00:35,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:35,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:35,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 20:00:35,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:35,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:35,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 20:00:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:35,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:35,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:35,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:35,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:35,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:35,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:35,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:35,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:35,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 20:00:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:35,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:35,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:35,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:35,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:35,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:35,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:35,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:35,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:35,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 20:00:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:35,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:35,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:35,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:35,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:35,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:35,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:35,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:35,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:35,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:35,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:35,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:35,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 20:00:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:35,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:35,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:35,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:35,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:35,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:35,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:35,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:35,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:35,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:35,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:35,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 20:00:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:35,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:35,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:35,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:35,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:35,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:35,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:35,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:35,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:35,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 20:00:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:35,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:35,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:35,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:00:35,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:35,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:00:35,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:35,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:35,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:35,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 20:00:35,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:35,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:35,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 20:00:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:35,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:35,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:35,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 20:00:35,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:35,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:35,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:35,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:35,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 20:00:35,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:35,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:35,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 20:00:35,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985287582] [2020-10-28 20:00:35,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 20:00:35,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 20:00:35,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403449486] [2020-10-28 20:00:35,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 20:00:35,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 20:00:35,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 20:00:35,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 20:00:35,380 INFO L87 Difference]: Start difference. First operand 1945 states and 2519 transitions. Second operand 9 states. [2020-10-28 20:00:35,532 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 20:00:38,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 20:00:38,329 INFO L93 Difference]: Finished difference Result 4550 states and 6086 transitions. [2020-10-28 20:00:38,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 20:00:38,329 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 20:00:38,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 20:00:38,344 INFO L225 Difference]: With dead ends: 4550 [2020-10-28 20:00:38,345 INFO L226 Difference]: Without dead ends: 2632 [2020-10-28 20:00:38,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-28 20:00:38,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2020-10-28 20:00:38,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 1945. [2020-10-28 20:00:38,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2020-10-28 20:00:38,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2506 transitions. [2020-10-28 20:00:38,647 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2506 transitions. Word has length 121 [2020-10-28 20:00:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 20:00:38,647 INFO L481 AbstractCegarLoop]: Abstraction has 1945 states and 2506 transitions. [2020-10-28 20:00:38,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 20:00:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2506 transitions. [2020-10-28 20:00:38,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 20:00:38,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 20:00:38,649 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] [2020-10-28 20:00:38,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 20:00:38,649 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 20:00:38,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 20:00:38,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1489666532, now seen corresponding path program 1 times [2020-10-28 20:00:38,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 20:00:38,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534204202] [2020-10-28 20:00:38,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 20:00:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:38,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:38,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:38,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:38,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:38,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:38,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:43,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:43,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 20:00:43,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 20:00:43,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 20:00:43,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:43,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:43,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 20:00:43,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 20:00:43,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 20:00:43,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:43,815 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 20:00:43,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 20:00:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:43,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:43,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:43,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:00:43,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:43,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 20:00:43,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:43,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 20:00:43,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:43,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 20:00:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:43,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:43,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:43,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:00:43,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:43,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:00:43,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:43,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 20:00:43,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:43,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 20:00:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:43,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:43,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:43,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 20:00:43,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:43,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:43,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:43,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:43,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:43,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:43,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 20:00:43,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:43,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 20:00:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:43,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:43,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:43,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 20:00:43,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:43,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 20:00:43,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:43,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:43,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:00:43,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:43,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 20:00:43,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:43,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 20:00:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:43,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:43,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:43,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:00:43,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:43,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 20:00:43,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:43,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:43,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 20:00:43,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 20:00:43,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 20:00:43,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:43,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 20:00:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:43,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:43,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:43,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:43,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:43,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:45,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:48,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:48,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 20:00:48,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 20:00:48,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 20:00:48,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:48,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:48,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:48,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 20:00:48,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:48,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:48,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 20:00:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:48,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:48,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:48,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:48,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:48,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:48,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:48,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:48,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:48,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 20:00:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:48,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:48,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:48,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:48,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:48,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:48,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:48,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:48,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 20:00:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:48,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:48,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:48,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:48,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:48,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:48,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:48,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:48,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:48,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 20:00:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:48,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:48,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:48,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:48,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:48,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:48,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:48,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:48,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:48,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:48,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 20:00:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:48,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:48,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:48,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:00:48,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:48,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:48,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:48,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:48,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:48,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:48,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:48,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:48,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 20:00:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:48,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:48,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:48,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:00:48,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:48,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:00:48,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:48,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 20:00:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:48,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 20:00:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:48,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:48,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:48,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 20:00:48,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:48,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:48,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 20:00:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 20:00:48,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534204202] [2020-10-28 20:00:48,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 20:00:48,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 20:00:48,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638112860] [2020-10-28 20:00:48,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 20:00:48,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 20:00:48,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 20:00:48,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-28 20:00:48,999 INFO L87 Difference]: Start difference. First operand 1945 states and 2506 transitions. Second operand 9 states. [2020-10-28 20:00:49,149 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 20:00:51,766 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 20:00:53,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 20:00:53,902 INFO L93 Difference]: Finished difference Result 6877 states and 9320 transitions. [2020-10-28 20:00:53,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 20:00:53,910 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 20:00:53,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 20:00:53,951 INFO L225 Difference]: With dead ends: 6877 [2020-10-28 20:00:53,951 INFO L226 Difference]: Without dead ends: 4957 [2020-10-28 20:00:53,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-10-28 20:00:53,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4957 states. [2020-10-28 20:00:54,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4957 to 3811. [2020-10-28 20:00:54,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3811 states. [2020-10-28 20:00:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3811 states to 3811 states and 4890 transitions. [2020-10-28 20:00:54,458 INFO L78 Accepts]: Start accepts. Automaton has 3811 states and 4890 transitions. Word has length 121 [2020-10-28 20:00:54,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 20:00:54,459 INFO L481 AbstractCegarLoop]: Abstraction has 3811 states and 4890 transitions. [2020-10-28 20:00:54,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 20:00:54,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3811 states and 4890 transitions. [2020-10-28 20:00:54,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 20:00:54,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 20:00:54,461 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] [2020-10-28 20:00:54,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 20:00:54,461 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 20:00:54,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 20:00:54,461 INFO L82 PathProgramCache]: Analyzing trace with hash -282962212, now seen corresponding path program 1 times [2020-10-28 20:00:54,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 20:00:54,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597612464] [2020-10-28 20:00:54,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 20:00:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:54,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:54,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:54,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:54,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:54,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:55,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:59,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:59,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 20:00:59,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 20:00:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 20:00:59,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:59,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 20:00:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 20:00:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 20:00:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:59,614 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 20:00:59,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 20:00:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:59,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:59,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:59,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:00:59,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:59,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 20:00:59,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:59,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:59,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:59,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:59,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:59,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:59,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 20:00:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:59,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:59,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:59,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:00:59,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:59,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:59,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:59,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:59,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 20:00:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:59,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:59,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:59,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 20:00:59,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:59,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:00:59,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:59,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:59,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:59,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:59,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:59,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:59,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 20:00:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:59,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:59,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:59,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 20:00:59,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:59,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:59,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:59,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:59,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:59,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 20:00:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:59,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:59,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:00:59,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:00:59,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:00:59,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:00:59,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:00:59,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:00:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:00:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:00:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:00:59,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:00:59,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 20:00:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:00:59,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:59,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:59,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:00:59,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:00,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:04,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:04,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 20:01:04,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 20:01:04,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 20:01:04,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:04,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:04,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 20:01:04,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 20:01:04,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 20:01:04,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:04,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 20:01:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:04,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:04,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:04,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:04,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:04,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:04,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:04,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:04,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 20:01:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:04,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:04,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:04,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:04,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:04,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:04,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:04,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:04,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:04,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:04,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:04,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:04,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 20:01:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:04,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:04,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:04,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:04,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:04,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:04,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:04,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:04,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:04,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:04,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:04,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:04,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 20:01:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:04,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:04,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:04,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:04,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:04,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 20:01:04,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:04,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 20:01:04,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:04,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 20:01:04,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:04,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 20:01:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:04,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:04,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:04,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:04,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:04,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:04,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 20:01:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:04,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:04,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 20:01:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:04,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:04,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:04,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:01:04,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:01:04,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:04,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 20:01:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 20:01:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:04,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:04,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:04,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 20:01:04,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:04,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:04,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:04,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:04,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:04,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 20:01:04,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:04,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 20:01:04,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597612464] [2020-10-28 20:01:04,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 20:01:04,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 20:01:04,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760834439] [2020-10-28 20:01:04,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 20:01:04,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 20:01:04,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 20:01:04,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 20:01:04,832 INFO L87 Difference]: Start difference. First operand 3811 states and 4890 transitions. Second operand 10 states. [2020-10-28 20:01:05,666 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 20:01:05,824 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 20:01:06,044 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 20:01:06,257 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 20:01:09,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 20:01:09,427 INFO L93 Difference]: Finished difference Result 8754 states and 11864 transitions. [2020-10-28 20:01:09,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 20:01:09,428 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-28 20:01:09,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 20:01:09,454 INFO L225 Difference]: With dead ends: 8754 [2020-10-28 20:01:09,454 INFO L226 Difference]: Without dead ends: 5017 [2020-10-28 20:01:09,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-28 20:01:09,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5017 states. [2020-10-28 20:01:10,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5017 to 3841. [2020-10-28 20:01:10,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3841 states. [2020-10-28 20:01:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 4887 transitions. [2020-10-28 20:01:10,116 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 4887 transitions. Word has length 121 [2020-10-28 20:01:10,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 20:01:10,117 INFO L481 AbstractCegarLoop]: Abstraction has 3841 states and 4887 transitions. [2020-10-28 20:01:10,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 20:01:10,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 4887 transitions. [2020-10-28 20:01:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 20:01:10,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 20:01:10,118 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] [2020-10-28 20:01:10,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 20:01:10,118 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 20:01:10,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 20:01:10,119 INFO L82 PathProgramCache]: Analyzing trace with hash -298480930, now seen corresponding path program 1 times [2020-10-28 20:01:10,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 20:01:10,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484033127] [2020-10-28 20:01:10,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 20:01:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:10,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:10,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:10,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:10,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:15,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:15,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 20:01:15,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 20:01:15,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 20:01:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:15,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 20:01:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 20:01:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 20:01:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:15,282 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 20:01:15,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 20:01:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:15,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:15,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:15,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:01:15,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:15,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 20:01:15,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:15,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:15,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:15,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 20:01:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:15,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:15,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:15,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:01:15,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:15,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:15,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:15,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:15,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:15,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 20:01:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:15,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:15,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:15,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 20:01:15,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:15,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:01:15,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:15,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:15,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:15,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 20:01:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:15,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:15,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:15,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 20:01:15,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:15,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:15,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:15,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:15,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:15,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:15,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:15,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:15,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 20:01:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:15,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:15,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:15,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:01:15,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:15,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:15,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:15,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:15,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:15,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 20:01:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:15,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:15,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:15,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:15,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:16,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:16,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 20:01:16,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 20:01:16,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1056 [2020-10-28 20:01:16,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:16,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 20:01:16,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 20:01:16,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 20:01:16,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:16,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 20:01:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:16,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:16,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:16,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:16,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:16,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:16,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:16,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:16,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:16,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 20:01:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:16,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:16,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:16,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:16,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:16,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 20:01:16,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:16,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 20:01:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 20:01:16,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:16,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 20:01:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:16,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:16,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:16,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:16,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:16,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:16,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:16,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:16,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:16,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 20:01:16,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:16,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:16,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 20:01:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:16,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:16,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:16,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:16,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:16,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:16,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:16,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:16,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:16,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 20:01:16,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:16,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:16,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 20:01:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:16,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:16,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:16,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:16,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:16,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:16,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:16,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:16,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:16,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 20:01:16,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:16,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:16,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 20:01:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:16,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:16,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:16,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:01:16,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:16,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 20:01:16,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:16,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:16,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:16,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 20:01:16,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:16,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:16,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 20:01:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:16,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:16,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:16,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 20:01:16,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:16,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:16,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:16,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 20:01:16,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:16,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:16,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 20:01:16,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484033127] [2020-10-28 20:01:16,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 20:01:16,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 20:01:16,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010925460] [2020-10-28 20:01:16,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 20:01:16,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 20:01:16,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 20:01:16,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 20:01:16,581 INFO L87 Difference]: Start difference. First operand 3841 states and 4887 transitions. Second operand 10 states. [2020-10-28 20:01:17,234 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 20:01:17,374 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 20:01:17,600 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 20:01:17,817 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 20:01:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 20:01:21,110 INFO L93 Difference]: Finished difference Result 8917 states and 11970 transitions. [2020-10-28 20:01:21,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 20:01:21,116 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-28 20:01:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 20:01:21,140 INFO L225 Difference]: With dead ends: 8917 [2020-10-28 20:01:21,141 INFO L226 Difference]: Without dead ends: 5131 [2020-10-28 20:01:21,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-28 20:01:21,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2020-10-28 20:01:21,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 3881. [2020-10-28 20:01:21,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3881 states. [2020-10-28 20:01:21,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3881 states to 3881 states and 4896 transitions. [2020-10-28 20:01:21,888 INFO L78 Accepts]: Start accepts. Automaton has 3881 states and 4896 transitions. Word has length 121 [2020-10-28 20:01:21,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 20:01:21,889 INFO L481 AbstractCegarLoop]: Abstraction has 3881 states and 4896 transitions. [2020-10-28 20:01:21,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 20:01:21,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3881 states and 4896 transitions. [2020-10-28 20:01:21,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 20:01:21,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 20:01:21,890 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] [2020-10-28 20:01:21,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 20:01:21,890 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 20:01:21,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 20:01:21,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1514634656, now seen corresponding path program 1 times [2020-10-28 20:01:21,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 20:01:21,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564969611] [2020-10-28 20:01:21,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 20:01:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:21,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:21,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:21,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:22,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:23,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:23,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:23,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:26,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:26,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 20:01:26,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 20:01:26,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 20:01:26,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:26,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 137 [2020-10-28 20:01:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 20:01:26,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,055 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 20:01:27,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 20:01:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:01:27,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 20:01:27,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 20:01:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:01:27,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:27,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 20:01:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 20:01:27,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:01:27,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 20:01:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 20:01:27,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:01:27,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 20:01:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:01:27,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:27,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 20:01:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 20:01:27,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 20:01:27,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-28 20:01:27,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 20:01:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 20:01:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:27,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:01:27,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 20:01:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:27,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:01:27,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 20:01:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:27,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:01:27,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 20:01:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:27,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:27,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 20:01:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:01:27,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:01:27,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:27,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 20:01:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:27,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:27,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:27,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 20:01:27,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:27,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:27,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:27,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:27,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:27,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:27,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 20:01:27,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 20:01:27,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564969611] [2020-10-28 20:01:27,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 20:01:27,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 20:01:27,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578411233] [2020-10-28 20:01:27,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 20:01:27,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 20:01:27,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 20:01:27,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 20:01:27,435 INFO L87 Difference]: Start difference. First operand 3881 states and 4896 transitions. Second operand 7 states. [2020-10-28 20:01:27,593 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 20:01:32,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 20:01:32,787 INFO L93 Difference]: Finished difference Result 13161 states and 17535 transitions. [2020-10-28 20:01:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 20:01:32,787 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-10-28 20:01:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 20:01:32,832 INFO L225 Difference]: With dead ends: 13161 [2020-10-28 20:01:32,833 INFO L226 Difference]: Without dead ends: 9367 [2020-10-28 20:01:32,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-28 20:01:32,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2020-10-28 20:01:33,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 7641. [2020-10-28 20:01:33,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7641 states. [2020-10-28 20:01:34,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7641 states to 7641 states and 10019 transitions. [2020-10-28 20:01:34,006 INFO L78 Accepts]: Start accepts. Automaton has 7641 states and 10019 transitions. Word has length 121 [2020-10-28 20:01:34,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 20:01:34,007 INFO L481 AbstractCegarLoop]: Abstraction has 7641 states and 10019 transitions. [2020-10-28 20:01:34,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 20:01:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 7641 states and 10019 transitions. [2020-10-28 20:01:34,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-28 20:01:34,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 20:01:34,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 20:01:34,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 20:01:34,009 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 20:01:34,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 20:01:34,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1371109221, now seen corresponding path program 1 times [2020-10-28 20:01:34,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 20:01:34,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850962269] [2020-10-28 20:01:34,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 20:01:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:34,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:34,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:34,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:34,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:36,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:39,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-28 20:01:39,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 20:01:39,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 20:01:39,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:39,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 20:01:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 20:01:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 20:01:39,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:39,181 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 20:01:39,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 20:01:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:39,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:39,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:01:39,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:39,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 20:01:39,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:39,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:39,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:39,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 20:01:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:39,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:39,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 20:01:39,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:39,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:39,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:39,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:39,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:39,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:39,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 20:01:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:39,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:39,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 20:01:39,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:39,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 20:01:39,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:39,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 20:01:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 20:01:39,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:39,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 20:01:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:39,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:39,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 20:01:39,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:39,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 20:01:39,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:39,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:39,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:39,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:39,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 20:01:39,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:39,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 20:01:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:39,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:39,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:01:39,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:39,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 20:01:39,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:39,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:39,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:39,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 20:01:39,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:39,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 20:01:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:39,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:39,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 20:01:39,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 20:01:39,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 680 [2020-10-28 20:01:39,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:39,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:39,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 20:01:39,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 20:01:39,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 20:01:39,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:39,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 20:01:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:39,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:39,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:39,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 20:01:39,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:39,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:39,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:39,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 20:01:39,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:39,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 20:01:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:39,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:39,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:39,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:39,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:39,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:39,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 20:01:39,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:39,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 20:01:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:39,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:39,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:39,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:39,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:39,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:39,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:39,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:39,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:39,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 20:01:39,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:39,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 20:01:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:40,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:40,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:40,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:40,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:40,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:40,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:40,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 20:01:40,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:40,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 20:01:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:40,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:40,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:40,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 20:01:40,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:40,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:40,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:40,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:40,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:40,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:40,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 20:01:40,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:40,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 20:01:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:40,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:40,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:40,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 20:01:40,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:40,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 20:01:40,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:40,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 20:01:40,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:40,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-28 20:01:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:40,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:40,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 20:01:40,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 20:01:40,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 20:01:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 20:01:40,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 20:01:40,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 20:01:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 20:01:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 20:01:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 20:01:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 20:01:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 20:01:40,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850962269] [2020-10-28 20:01:40,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 20:01:40,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 20:01:40,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209563451] [2020-10-28 20:01:40,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 20:01:40,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 20:01:40,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 20:01:40,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-28 20:01:40,036 INFO L87 Difference]: Start difference. First operand 7641 states and 10019 transitions. Second operand 8 states. [2020-10-28 20:01:40,199 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 20:01:48,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 20:01:48,131 INFO L93 Difference]: Finished difference Result 27927 states and 40895 transitions. [2020-10-28 20:01:48,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 20:01:48,132 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 122 [2020-10-28 20:01:48,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 20:01:48,255 INFO L225 Difference]: With dead ends: 27927 [2020-10-28 20:01:48,255 INFO L226 Difference]: Without dead ends: 20457 [2020-10-28 20:01:48,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-10-28 20:01:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20457 states. [2020-10-28 20:01:50,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20457 to 14969. [2020-10-28 20:01:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14969 states. [2020-10-28 20:01:50,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14969 states to 14969 states and 20307 transitions. [2020-10-28 20:01:50,767 INFO L78 Accepts]: Start accepts. Automaton has 14969 states and 20307 transitions. Word has length 122 [2020-10-28 20:01:50,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 20:01:50,768 INFO L481 AbstractCegarLoop]: Abstraction has 14969 states and 20307 transitions. [2020-10-28 20:01:50,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 20:01:50,768 INFO L276 IsEmpty]: Start isEmpty. Operand 14969 states and 20307 transitions. [2020-10-28 20:01:50,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-28 20:01:50,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 20:01:50,770 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] [2020-10-28 20:01:50,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 20:01:50,771 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 20:01:50,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 20:01:50,771 INFO L82 PathProgramCache]: Analyzing trace with hash -6305057, now seen corresponding path program 1 times [2020-10-28 20:01:50,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 20:01:50,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582825722] [2020-10-28 20:01:50,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 20:01:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 20:01:50,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:50,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:50,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 20:01:50,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking...