/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=SHALLOWEST --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 [2020-10-27 06:41:55,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 06:41:55,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 06:41:55,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 06:41:55,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 06:41:55,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 06:41:55,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 06:41:55,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 06:41:55,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 06:41:55,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 06:41:55,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 06:41:55,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 06:41:55,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 06:41:55,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 06:41:55,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 06:41:55,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 06:41:55,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 06:41:55,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 06:41:55,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 06:41:55,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 06:41:55,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 06:41:55,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 06:41:55,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 06:41:55,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 06:41:55,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 06:41:55,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 06:41:55,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 06:41:55,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 06:41:55,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 06:41:55,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 06:41:55,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 06:41:55,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 06:41:55,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 06:41:55,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 06:41:55,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 06:41:55,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 06:41:55,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 06:41:55,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 06:41:55,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 06:41:55,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 06:41:55,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 06:41:55,841 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 [2020-10-27 06:41:55,874 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 06:41:55,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 06:41:55,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 06:41:55,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 06:41:55,877 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 06:41:55,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 06:41:55,877 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 06:41:55,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 06:41:55,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 06:41:55,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 06:41:55,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 06:41:55,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 06:41:55,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 06:41:55,879 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 06:41:55,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 06:41:55,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 06:41:55,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 06:41:55,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 06:41:55,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 06:41:55,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 06:41:55,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 06:41:55,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 06:41:55,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 06:41:55,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 06:41:55,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 06:41:55,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 06:41:55,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 06:41:55,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 06:41:55,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 06:41:55,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 06:41:56,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 06:41:56,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 06:41:56,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 06:41:56,301 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 06:41:56,302 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 06:41:56,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.04.cil.c [2020-10-27 06:41:56,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0011594c4/e023c815a2c0493fb7880d52414e01f3/FLAG0089dcb58 [2020-10-27 06:41:57,054 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 06:41:57,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.04.cil.c [2020-10-27 06:41:57,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0011594c4/e023c815a2c0493fb7880d52414e01f3/FLAG0089dcb58 [2020-10-27 06:41:57,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0011594c4/e023c815a2c0493fb7880d52414e01f3 [2020-10-27 06:41:57,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 06:41:57,387 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 06:41:57,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 06:41:57,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 06:41:57,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 06:41:57,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:41:57" (1/1) ... [2020-10-27 06:41:57,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3f3b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57, skipping insertion in model container [2020-10-27 06:41:57,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:41:57" (1/1) ... [2020-10-27 06:41:57,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 06:41:57,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 06:41:57,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 06:41:57,856 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 06:41:57,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 06:41:57,931 INFO L208 MainTranslator]: Completed translation [2020-10-27 06:41:57,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57 WrapperNode [2020-10-27 06:41:57,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 06:41:57,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 06:41:57,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 06:41:57,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 06:41:57,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57" (1/1) ... [2020-10-27 06:41:57,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57" (1/1) ... [2020-10-27 06:41:57,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57" (1/1) ... [2020-10-27 06:41:57,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57" (1/1) ... [2020-10-27 06:41:57,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57" (1/1) ... [2020-10-27 06:41:58,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57" (1/1) ... [2020-10-27 06:41:58,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57" (1/1) ... [2020-10-27 06:41:58,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 06:41:58,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 06:41:58,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 06:41:58,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 06:41:58,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57" (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 [2020-10-27 06:41:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 06:41:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 06:41:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 06:41:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-27 06:41:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-10-27 06:41:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-10-27 06:41:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-10-27 06:41:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-10-27 06:41:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-10-27 06:41:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-10-27 06:41:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-10-27 06:41:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-10-27 06:41:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-10-27 06:41:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-10-27 06:41:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-27 06:41:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-27 06:41:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-27 06:41:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-27 06:41:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-27 06:41:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-27 06:41:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-27 06:41:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-27 06:41:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-27 06:41:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-27 06:41:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-27 06:41:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-27 06:41:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-27 06:41:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 06:41:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 06:41:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 06:41:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 06:41:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 06:41:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 06:41:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-27 06:41:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-10-27 06:41:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-10-27 06:41:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-10-27 06:41:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-10-27 06:41:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-10-27 06:41:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-27 06:41:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-10-27 06:41:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-10-27 06:41:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-10-27 06:41:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-10-27 06:41:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-10-27 06:41:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-27 06:41:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-27 06:41:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-27 06:41:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-27 06:41:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-27 06:41:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-27 06:41:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-27 06:41:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-27 06:41:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-27 06:41:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-27 06:41:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-27 06:41:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-27 06:41:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 06:41:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 06:41:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 06:41:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 06:41:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 06:41:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 06:41:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 06:41:59,103 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 06:41:59,105 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-27 06:41:59,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:41:59 BoogieIcfgContainer [2020-10-27 06:41:59,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 06:41:59,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 06:41:59,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 06:41:59,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 06:41:59,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:41:57" (1/3) ... [2020-10-27 06:41:59,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7a8195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:41:59, skipping insertion in model container [2020-10-27 06:41:59,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:57" (2/3) ... [2020-10-27 06:41:59,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7a8195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:41:59, skipping insertion in model container [2020-10-27 06:41:59,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:41:59" (3/3) ... [2020-10-27 06:41:59,126 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.04.cil.c [2020-10-27 06:41:59,139 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 06:41:59,146 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 06:41:59,162 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 06:41:59,214 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 06:41:59,214 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 06:41:59,214 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 06:41:59,214 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 06:41:59,215 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 06:41:59,215 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 06:41:59,215 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 06:41:59,215 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 06:41:59,248 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2020-10-27 06:41:59,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 06:41:59,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:41:59,277 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] [2020-10-27 06:41:59,278 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:41:59,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:41:59,288 INFO L82 PathProgramCache]: Analyzing trace with hash -295484549, now seen corresponding path program 1 times [2020-10-27 06:41:59,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:41:59,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807260040] [2020-10-27 06:41:59,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:41:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:59,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:59,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:00,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:00,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:01,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:04,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:04,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:04,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 06:42:04,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-27 06:42:04,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 06:42:04,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 06:42:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:42:04,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 06:42:04,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 06:42:04,879 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:42:04,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:42:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:04,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:04,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:04,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:04,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 06:42:04,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:04,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:04,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:04,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:42:04,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:04,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:42:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:04,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:04,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:04,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:04,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 06:42:04,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:42:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:04,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:42:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:04,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:04,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:04,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:42:04,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:04,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:42:04,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:04,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:42:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:42:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:05,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:05,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:42:05,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:05,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 06:42:05,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:42:05,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:42:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:05,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:05,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:05,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 06:42:05,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:42:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:42:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:42:05,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:42:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:05,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:05,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:42:05,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 06:42:05,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-27 06:42:05,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:05,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 06:42:05,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-27 06:42:05,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:42:05,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:42:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:05,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:05,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:05,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:05,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:42:05,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:05,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:42:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:05,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:05,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:05,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:05,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:42:05,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:05,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:05,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:42:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:05,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:05,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:05,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:05,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 06:42:05,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:05,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:42:05,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:05,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:42:05,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:42:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:05,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:05,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:05,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:05,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:42:05,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:42:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:05,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:42:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:05,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:05,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:05,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:05,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:42:05,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:05,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:42:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:05,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:42:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:05,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:05,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:05,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:05,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 06:42:05,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:42:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:05,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:42:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:05,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:05,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:05,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:42:05,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:05,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:42:05,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:05,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:05,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:42:05,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:05,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 06:42:05,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807260040] [2020-10-27 06:42:05,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:42:05,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 06:42:05,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247850129] [2020-10-27 06:42:05,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 06:42:05,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:42:05,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 06:42:05,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-27 06:42:05,719 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 13 states. [2020-10-27 06:42:05,963 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:42:07,091 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 06:42:07,287 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 06:42:07,565 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 06:42:07,809 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 06:42:11,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:42:11,389 INFO L93 Difference]: Finished difference Result 588 states and 943 transitions. [2020-10-27 06:42:11,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 06:42:11,391 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 121 [2020-10-27 06:42:11,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:42:11,410 INFO L225 Difference]: With dead ends: 588 [2020-10-27 06:42:11,410 INFO L226 Difference]: Without dead ends: 365 [2020-10-27 06:42:11,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2020-10-27 06:42:11,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-10-27 06:42:11,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 226. [2020-10-27 06:42:11,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-27 06:42:11,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 308 transitions. [2020-10-27 06:42:11,591 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 308 transitions. Word has length 121 [2020-10-27 06:42:11,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:42:11,592 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 308 transitions. [2020-10-27 06:42:11,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 06:42:11,592 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 308 transitions. [2020-10-27 06:42:11,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 06:42:11,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:42:11,604 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] [2020-10-27 06:42:11,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 06:42:11,605 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:42:11,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:42:11,606 INFO L82 PathProgramCache]: Analyzing trace with hash -470504839, now seen corresponding path program 1 times [2020-10-27 06:42:11,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:42:11,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007905392] [2020-10-27 06:42:11,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:42:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:11,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:11,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:11,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:11,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:11,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:11,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:12,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:12,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:12,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:12,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:12,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:12,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:12,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:12,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:13,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:16,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:16,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 06:42:16,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-27 06:42:16,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 06:42:16,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 06:42:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:42:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 06:42:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:16,818 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:42:16,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:42:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:16,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:16,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:16,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:16,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:16,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 06:42:16,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:16,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:16,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:16,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:42:16,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:16,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:42:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:16,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:16,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:16,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:16,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:16,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:42:16,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:42:16,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:16,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:42:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:16,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:16,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:16,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:42:16,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:16,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:16,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:16,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:16,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:16,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:42:16,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:16,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:42:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:16,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:16,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:16,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:42:16,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:16,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 06:42:16,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:16,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:42:16,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 06:42:16,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:42:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:16,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:16,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:16,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:16,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 06:42:16,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 06:42:16,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:42:16,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:42:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:17,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:17,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:17,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:17,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:42:17,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 06:42:17,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 06:42:17,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 06:42:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 06:42:17,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:42:17,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:42:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:17,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:17,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:17,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:17,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:17,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:42:17,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:17,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:42:17,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:42:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:17,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:17,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:17,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:17,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:42:17,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 06:42:17,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:17,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:42:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:17,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:17,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:17,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:17,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:17,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:42:17,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:17,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:17,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:17,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:42:17,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:42:17,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:42:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:17,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:17,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:17,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:17,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:17,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 06:42:17,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:42:17,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:42:17,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:42:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:17,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:17,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:17,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:17,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:17,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:42:17,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:17,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:42:17,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:17,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:42:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:17,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:17,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:17,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:17,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:17,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 06:42:17,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:17,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:17,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:42:17,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:17,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:17,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:42:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:17,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:17,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:17,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:42:17,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:17,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:42:17,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:17,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:17,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:42:17,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:17,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:42:17,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 06:42:17,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007905392] [2020-10-27 06:42:17,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:42:17,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 06:42:17,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770793276] [2020-10-27 06:42:17,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 06:42:17,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:42:17,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 06:42:17,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 06:42:17,294 INFO L87 Difference]: Start difference. First operand 226 states and 308 transitions. Second operand 8 states. [2020-10-27 06:42:17,438 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:42:19,013 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:42:21,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:42:21,898 INFO L93 Difference]: Finished difference Result 877 states and 1302 transitions. [2020-10-27 06:42:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 06:42:21,902 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-27 06:42:21,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:42:21,922 INFO L225 Difference]: With dead ends: 877 [2020-10-27 06:42:21,922 INFO L226 Difference]: Without dead ends: 674 [2020-10-27 06:42:21,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-10-27 06:42:21,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-10-27 06:42:22,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 435. [2020-10-27 06:42:22,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-10-27 06:42:22,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 599 transitions. [2020-10-27 06:42:22,069 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 599 transitions. Word has length 121 [2020-10-27 06:42:22,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:42:22,070 INFO L481 AbstractCegarLoop]: Abstraction has 435 states and 599 transitions. [2020-10-27 06:42:22,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 06:42:22,070 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 599 transitions. [2020-10-27 06:42:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 06:42:22,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:42:22,072 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] [2020-10-27 06:42:22,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 06:42:22,073 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:42:22,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:42:22,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1661483194, now seen corresponding path program 1 times [2020-10-27 06:42:22,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:42:22,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100589886] [2020-10-27 06:42:22,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:42:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:22,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:22,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:22,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:22,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:22,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:22,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:22,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:22,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:22,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:22,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:23,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:23,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:23,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:24,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 06:42:27,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-27 06:42:27,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 06:42:27,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 06:42:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:42:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 06:42:27,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,227 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:42:27,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:42:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:27,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 06:42:27,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:27,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:27,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:42:27,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:42:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:27,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:42:27,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:27,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:27,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:42:27,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:42:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:42:27,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:27,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:27,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:27,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:42:27,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:42:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:42:27,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:42:27,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:27,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:27,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:42:27,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:42:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:27,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 06:42:27,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:42:27,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:42:27,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:42:27,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:42:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:42:27,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 06:42:27,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-27 06:42:27,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 06:42:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 06:42:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:42:27,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:42:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:27,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:27,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:27,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:42:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:27,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:42:27,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:42:27,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:27,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:42:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:42:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:27,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:27,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:42:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:42:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:27,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:42:27,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:27,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:42:27,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:27,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:42:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:27,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:27,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:42:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:27,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:42:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:27,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:42:27,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:42:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:27,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:42:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:27,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:27,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:27,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:42:27,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:27,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:42:27,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:42:27,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:27,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 06:42:27,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100589886] [2020-10-27 06:42:27,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:42:27,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 06:42:27,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620949518] [2020-10-27 06:42:27,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 06:42:27,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:42:27,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 06:42:27,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-27 06:42:27,679 INFO L87 Difference]: Start difference. First operand 435 states and 599 transitions. Second operand 13 states. [2020-10-27 06:42:27,839 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:42:28,700 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 06:42:28,864 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 06:42:29,029 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 06:42:29,264 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 06:42:32,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:42:32,536 INFO L93 Difference]: Finished difference Result 1101 states and 1645 transitions. [2020-10-27 06:42:32,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 06:42:32,545 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 121 [2020-10-27 06:42:32,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:42:32,553 INFO L225 Difference]: With dead ends: 1101 [2020-10-27 06:42:32,553 INFO L226 Difference]: Without dead ends: 688 [2020-10-27 06:42:32,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-10-27 06:42:32,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-10-27 06:42:32,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 440. [2020-10-27 06:42:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2020-10-27 06:42:32,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 597 transitions. [2020-10-27 06:42:32,630 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 597 transitions. Word has length 121 [2020-10-27 06:42:32,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:42:32,630 INFO L481 AbstractCegarLoop]: Abstraction has 440 states and 597 transitions. [2020-10-27 06:42:32,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 06:42:32,630 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 597 transitions. [2020-10-27 06:42:32,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 06:42:32,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:42:32,632 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] [2020-10-27 06:42:32,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 06:42:32,633 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:42:32,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:42:32,633 INFO L82 PathProgramCache]: Analyzing trace with hash -447268612, now seen corresponding path program 1 times [2020-10-27 06:42:32,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:42:32,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146586719] [2020-10-27 06:42:32,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:42:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:32,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:32,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:32,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:32,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:32,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:32,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:33,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:33,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:33,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:33,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:33,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:33,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:37,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:37,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 06:42:37,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-27 06:42:37,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 06:42:37,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:37,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 06:42:37,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:42:37,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 06:42:37,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:37,798 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:42:37,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:42:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:37,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:37,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:37,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:37,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:37,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 06:42:37,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:37,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:37,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:37,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:42:37,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:37,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:42:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:37,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:37,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:37,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:37,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:37,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 06:42:37,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:37,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:37,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:37,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:42:37,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:37,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:42:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:37,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:37,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:37,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:42:37,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:37,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:37,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:42:37,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:37,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:42:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:37,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:37,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:37,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:42:37,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:37,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:42:37,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:37,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:37,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:37,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:42:37,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:37,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:42:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:37,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:37,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:37,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:37,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:37,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 06:42:37,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:37,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:42:37,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:42:37,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:42:37,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:37,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:42:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:37,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:38,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:38,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:38,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:42:38,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 06:42:38,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 06:42:38,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:38,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 06:42:38,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-27 06:42:38,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:42:38,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:38,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:42:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:38,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:38,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:38,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:38,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:38,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:38,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:38,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:38,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:42:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:38,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:38,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:38,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:38,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:38,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:38,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:38,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:38,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:38,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:42:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:38,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:38,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:38,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:38,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:38,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:38,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:38,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:38,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:38,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:38,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:38,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:42:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:38,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:38,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:38,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:38,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:38,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:38,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:38,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:38,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:38,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:38,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:38,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:42:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:38,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:38,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:38,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:38,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:38,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 06:42:38,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:42:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:38,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:42:38,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:38,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:42:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:38,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:38,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:38,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:38,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:42:38,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:42:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:38,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:42:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:38,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:38,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:38,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:42:38,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:38,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:38,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:38,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:38,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:42:38,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:38,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 06:42:38,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146586719] [2020-10-27 06:42:38,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:42:38,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 06:42:38,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437535939] [2020-10-27 06:42:38,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 06:42:38,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:42:38,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 06:42:38,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-27 06:42:38,240 INFO L87 Difference]: Start difference. First operand 440 states and 597 transitions. Second operand 13 states. [2020-10-27 06:42:38,393 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:42:39,576 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 06:42:39,745 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 06:42:39,985 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 06:42:40,217 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 06:42:42,169 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 06:42:42,342 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 06:42:42,563 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 06:42:42,772 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 06:42:44,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:42:44,139 INFO L93 Difference]: Finished difference Result 1286 states and 1859 transitions. [2020-10-27 06:42:44,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 06:42:44,140 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 121 [2020-10-27 06:42:44,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:42:44,152 INFO L225 Difference]: With dead ends: 1286 [2020-10-27 06:42:44,153 INFO L226 Difference]: Without dead ends: 868 [2020-10-27 06:42:44,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 06:42:44,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-10-27 06:42:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 581. [2020-10-27 06:42:44,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2020-10-27 06:42:44,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 755 transitions. [2020-10-27 06:42:44,240 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 755 transitions. Word has length 121 [2020-10-27 06:42:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:42:44,241 INFO L481 AbstractCegarLoop]: Abstraction has 581 states and 755 transitions. [2020-10-27 06:42:44,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 06:42:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 755 transitions. [2020-10-27 06:42:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 06:42:44,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:42:44,243 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] [2020-10-27 06:42:44,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 06:42:44,243 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:42:44,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:42:44,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1847576200, now seen corresponding path program 1 times [2020-10-27 06:42:44,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:42:44,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565592667] [2020-10-27 06:42:44,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:42:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:44,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:44,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:44,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:44,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:44,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:44,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:44,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:44,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:44,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:44,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 06:42:49,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-27 06:42:49,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-27 06:42:49,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 06:42:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:42:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-27 06:42:49,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,475 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:42:49,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:42:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:49,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 06:42:49,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:49,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:42:49,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:42:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:49,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:42:49,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:42:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:42:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:42:49,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:49,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:42:49,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:42:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:42:49,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 06:42:49,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:49,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:42:49,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:42:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:49,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 06:42:49,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 06:42:49,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:42:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:42:49,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 06:42:49,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 06:42:49,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:42:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:49,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:49,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:49,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:42:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:49,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:42:49,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:49,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:42:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:49,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:49,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:49,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:49,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:42:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:49,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:49,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:49,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:49,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:42:49,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:42:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:49,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:49,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:49,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:42:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:49,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 06:42:49,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:49,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 06:42:49,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:42:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:49,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:49,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:49,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:42:49,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:49,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:42:49,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:49,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:49,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:49,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:42:49,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:49,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 06:42:49,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1565592667] [2020-10-27 06:42:49,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:42:49,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 06:42:49,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161008156] [2020-10-27 06:42:49,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 06:42:49,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:42:49,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 06:42:49,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 06:42:49,773 INFO L87 Difference]: Start difference. First operand 581 states and 755 transitions. Second operand 7 states. [2020-10-27 06:42:49,969 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:42:53,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:42:53,897 INFO L93 Difference]: Finished difference Result 2210 states and 3096 transitions. [2020-10-27 06:42:53,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 06:42:53,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-10-27 06:42:53,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:42:53,912 INFO L225 Difference]: With dead ends: 2210 [2020-10-27 06:42:53,912 INFO L226 Difference]: Without dead ends: 1652 [2020-10-27 06:42:53,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-27 06:42:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2020-10-27 06:42:54,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1116. [2020-10-27 06:42:54,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-27 06:42:54,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1457 transitions. [2020-10-27 06:42:54,069 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1457 transitions. Word has length 121 [2020-10-27 06:42:54,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:42:54,069 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1457 transitions. [2020-10-27 06:42:54,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 06:42:54,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1457 transitions. [2020-10-27 06:42:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 06:42:54,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:42:54,073 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:42:54,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 06:42:54,073 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:42:54,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:42:54,074 INFO L82 PathProgramCache]: Analyzing trace with hash 259272854, now seen corresponding path program 1 times [2020-10-27 06:42:54,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:42:54,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781767550] [2020-10-27 06:42:54,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:42:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:54,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:54,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:55,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 06:42:59,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-27 06:42:59,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 06:42:59,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 06:42:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:42:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 06:42:59,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,221 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:42:59,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:42:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:59,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 06:42:59,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:42:59,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:42:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:42:59,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:42:59,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:42:59,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:42:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:42:59,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:59,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:59,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:59,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:42:59,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:42:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:42:59,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:42:59,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:42:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:42:59,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:42:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:59,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 06:42:59,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:42:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:42:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:42:59,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:42:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:42:59,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 06:42:59,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-27 06:42:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:59,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:42:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:59,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:59,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:59,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:59,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:59,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:42:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:59,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:59,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:59,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:59,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:59,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:42:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:59,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:59,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:59,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:42:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:59,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:59,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:59,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:59,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:59,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:42:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:42:59,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:59,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:59,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:42:59,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:59,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:42:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:42:59,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:42:59,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:42:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:59,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:42:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:42:59,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:59,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:59,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:42:59,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:59,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 06:42:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:42:59,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:59,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:42:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:59,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 06:42:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:42:59,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:42:59,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:42:59,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:42:59,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:42:59,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:42:59,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:42:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:42:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:42:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:42:59,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:42:59,502 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 06:42:59,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781767550] [2020-10-27 06:42:59,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:42:59,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 06:42:59,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693516987] [2020-10-27 06:42:59,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 06:42:59,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:42:59,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 06:42:59,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 06:42:59,504 INFO L87 Difference]: Start difference. First operand 1116 states and 1457 transitions. Second operand 10 states. [2020-10-27 06:42:59,641 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:43:03,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:43:03,481 INFO L93 Difference]: Finished difference Result 3138 states and 4353 transitions. [2020-10-27 06:43:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 06:43:03,485 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2020-10-27 06:43:03,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:43:03,499 INFO L225 Difference]: With dead ends: 3138 [2020-10-27 06:43:03,499 INFO L226 Difference]: Without dead ends: 2044 [2020-10-27 06:43:03,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-27 06:43:03,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2020-10-27 06:43:03,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1388. [2020-10-27 06:43:03,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2020-10-27 06:43:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1773 transitions. [2020-10-27 06:43:03,681 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1773 transitions. Word has length 142 [2020-10-27 06:43:03,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:43:03,681 INFO L481 AbstractCegarLoop]: Abstraction has 1388 states and 1773 transitions. [2020-10-27 06:43:03,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 06:43:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1773 transitions. [2020-10-27 06:43:03,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 06:43:03,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:43:03,684 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:43:03,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 06:43:03,685 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:43:03,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:43:03,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1887596586, now seen corresponding path program 1 times [2020-10-27 06:43:03,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:43:03,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2043042181] [2020-10-27 06:43:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:43:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:03,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:03,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:03,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:03,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:03,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:03,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:03,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:03,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:04,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:04,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:04,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:04,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:08,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:08,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 06:43:08,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-27 06:43:08,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 06:43:08,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:08,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 06:43:08,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:43:08,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 06:43:08,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:08,861 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:43:08,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:43:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:08,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:08,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:08,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:43:08,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:08,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 06:43:08,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:08,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:08,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:43:08,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:08,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:43:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:08,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:08,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:08,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:43:08,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:08,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:43:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:08,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:43:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:08,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:08,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:08,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:43:08,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:08,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:08,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:08,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:08,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:08,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:43:08,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:08,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:43:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:08,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:08,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:08,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:43:08,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:08,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:43:08,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:43:08,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:08,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:43:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:08,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:08,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:08,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:43:08,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:08,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 06:43:08,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 06:43:08,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:08,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:43:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:08,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:09,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:09,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:43:09,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:09,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 06:43:09,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-27 06:43:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 06:43:09,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:09,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:43:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:09,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:09,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:09,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:09,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:09,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:09,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:09,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:09,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:43:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:09,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:09,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:09,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:09,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:09,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:09,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:09,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:09,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:09,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:09,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:09,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:43:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:09,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:09,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:09,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:09,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:09,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:09,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:09,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:09,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:09,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:09,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:09,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:43:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:09,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:09,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:09,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:09,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:09,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:09,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:09,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:09,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:09,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 06:43:09,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:09,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:43:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:09,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:09,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:09,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:09,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:09,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:09,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:43:09,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:09,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:43:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:09,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:09,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:09,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:43:09,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:09,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:43:09,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:43:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:09,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:09,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:43:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:09,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:09,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:09,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:09,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:09,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:09,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:09,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:09,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:09,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 06:43:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:09,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:09,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:09,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:09,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:09,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:09,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:09,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:09,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:09,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:09,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:09,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 06:43:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:09,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:09,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:09,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:09,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:09,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:09,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:09,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 06:43:09,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2043042181] [2020-10-27 06:43:09,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:43:09,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 06:43:09,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324817139] [2020-10-27 06:43:09,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 06:43:09,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:43:09,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 06:43:09,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 06:43:09,112 INFO L87 Difference]: Start difference. First operand 1388 states and 1773 transitions. Second operand 9 states. [2020-10-27 06:43:09,246 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:43:10,958 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:43:15,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:43:15,538 INFO L93 Difference]: Finished difference Result 5023 states and 7042 transitions. [2020-10-27 06:43:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 06:43:15,539 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 142 [2020-10-27 06:43:15,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:43:15,561 INFO L225 Difference]: With dead ends: 5023 [2020-10-27 06:43:15,561 INFO L226 Difference]: Without dead ends: 3658 [2020-10-27 06:43:15,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2020-10-27 06:43:15,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2020-10-27 06:43:15,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 2488. [2020-10-27 06:43:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2020-10-27 06:43:15,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3218 transitions. [2020-10-27 06:43:15,916 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3218 transitions. Word has length 142 [2020-10-27 06:43:15,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:43:15,917 INFO L481 AbstractCegarLoop]: Abstraction has 2488 states and 3218 transitions. [2020-10-27 06:43:15,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 06:43:15,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3218 transitions. [2020-10-27 06:43:15,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 06:43:15,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:43:15,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:43:15,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 06:43:15,921 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:43:15,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:43:15,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1808478731, now seen corresponding path program 1 times [2020-10-27 06:43:15,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:43:15,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829454514] [2020-10-27 06:43:15,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:43:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:15,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:15,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:15,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:16,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:16,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:16,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:16,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:16,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:16,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:16,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:16,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:16,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:20,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:20,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 06:43:20,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-27 06:43:20,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 06:43:20,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:20,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 06:43:20,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:43:20,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 06:43:20,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,073 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:43:21,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:43:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:43:21,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 06:43:21,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:21,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:21,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:43:21,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:43:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:43:21,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:21,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:43:21,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:43:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:43:21,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:43:21,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:21,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:43:21,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:43:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:43:21,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:43:21,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:21,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:21,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:43:21,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:43:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:43:21,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 06:43:21,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:43:21,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:43:21,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:43:21,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:43:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:43:21,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 06:43:21,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 06:43:21,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 06:43:21,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:43:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:21,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:21,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:21,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:43:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:21,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:43:21,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:21,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:43:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:21,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:21,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:21,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:43:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:21,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:21,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:21,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:21,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:21,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:43:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:21,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:21,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:43:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:43:21,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 06:43:21,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:43:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:43:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:43:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:43:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:21,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:21,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:21,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:21,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:21,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 06:43:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:21,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:21,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:21,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:43:21,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 06:43:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:21,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:21,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:21,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:21,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:21,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:21,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:21,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:21,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:21,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:21,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:21,446 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 06:43:21,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829454514] [2020-10-27 06:43:21,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:43:21,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 06:43:21,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759743940] [2020-10-27 06:43:21,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 06:43:21,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:43:21,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 06:43:21,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-27 06:43:21,472 INFO L87 Difference]: Start difference. First operand 2488 states and 3218 transitions. Second operand 11 states. [2020-10-27 06:43:21,631 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:43:23,961 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 06:43:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:43:25,756 INFO L93 Difference]: Finished difference Result 6416 states and 8921 transitions. [2020-10-27 06:43:25,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 06:43:25,756 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 142 [2020-10-27 06:43:25,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:43:25,781 INFO L225 Difference]: With dead ends: 6416 [2020-10-27 06:43:25,781 INFO L226 Difference]: Without dead ends: 3950 [2020-10-27 06:43:25,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-10-27 06:43:25,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3950 states. [2020-10-27 06:43:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3950 to 2628. [2020-10-27 06:43:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2628 states. [2020-10-27 06:43:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 3328 transitions. [2020-10-27 06:43:26,250 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 3328 transitions. Word has length 142 [2020-10-27 06:43:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:43:26,252 INFO L481 AbstractCegarLoop]: Abstraction has 2628 states and 3328 transitions. [2020-10-27 06:43:26,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 06:43:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 3328 transitions. [2020-10-27 06:43:26,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 06:43:26,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:43:26,268 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:43:26,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 06:43:26,268 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:43:26,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:43:26,269 INFO L82 PathProgramCache]: Analyzing trace with hash 457902455, now seen corresponding path program 1 times [2020-10-27 06:43:26,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:43:26,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834925418] [2020-10-27 06:43:26,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:43:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:26,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:26,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:26,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:26,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:26,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:26,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:26,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:26,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:27,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:27,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:27,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 06:43:31,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-27 06:43:31,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 06:43:31,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 06:43:31,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:43:31,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 06:43:31,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,423 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:43:31,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:43:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:43:31,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 06:43:31,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:31,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:31,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:43:31,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:43:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:43:31,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:31,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:43:31,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:43:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:43:31,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:31,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:43:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:43:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:43:31,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:43:31,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:43:31,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:43:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:43:31,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 06:43:31,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:43:31,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:43:31,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:43:31,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:43:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:43:31,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 06:43:31,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 06:43:31,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 06:43:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 06:43:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:43:31,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:43:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:31,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:31,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:31,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:31,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:31,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:43:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:31,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:43:31,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:31,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:43:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:31,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:31,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:31,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:31,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:31,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:43:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:31,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:43:31,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:43:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:43:31,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:43:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:31,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:31,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:43:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:31,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:43:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:43:31,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:31,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:43:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:31,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:43:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:31,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:43:31,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:31,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 06:43:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:31,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:31,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:31,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:31,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:31,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 06:43:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:31,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:31,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:31,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:31,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:31,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:31,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:31,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:31,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:31,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:31,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:31,776 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 06:43:31,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834925418] [2020-10-27 06:43:31,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:43:31,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 06:43:31,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599556793] [2020-10-27 06:43:31,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 06:43:31,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:43:31,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 06:43:31,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-27 06:43:31,779 INFO L87 Difference]: Start difference. First operand 2628 states and 3328 transitions. Second operand 14 states. [2020-10-27 06:43:31,937 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:43:32,987 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 06:43:33,143 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 06:43:33,395 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 06:43:33,613 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 06:43:37,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:43:37,076 INFO L93 Difference]: Finished difference Result 6600 states and 9037 transitions. [2020-10-27 06:43:37,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 06:43:37,076 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 142 [2020-10-27 06:43:37,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:43:37,099 INFO L225 Difference]: With dead ends: 6600 [2020-10-27 06:43:37,099 INFO L226 Difference]: Without dead ends: 3994 [2020-10-27 06:43:37,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=199, Invalid=557, Unknown=0, NotChecked=0, Total=756 [2020-10-27 06:43:37,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2020-10-27 06:43:37,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 2698. [2020-10-27 06:43:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2698 states. [2020-10-27 06:43:37,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3364 transitions. [2020-10-27 06:43:37,571 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3364 transitions. Word has length 142 [2020-10-27 06:43:37,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:43:37,572 INFO L481 AbstractCegarLoop]: Abstraction has 2698 states and 3364 transitions. [2020-10-27 06:43:37,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 06:43:37,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3364 transitions. [2020-10-27 06:43:37,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 06:43:37,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:43:37,575 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:43:37,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 06:43:37,575 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:43:37,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:43:37,576 INFO L82 PathProgramCache]: Analyzing trace with hash 685032309, now seen corresponding path program 1 times [2020-10-27 06:43:37,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:43:37,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804262460] [2020-10-27 06:43:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:43:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:37,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:37,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:37,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:37,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:37,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:37,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:38,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:38,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:38,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:41,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 06:43:42,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 06:43:42,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 06:43:42,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 06:43:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:43:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 06:43:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,740 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:43:42,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:43:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:43:42,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 06:43:42,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:43:42,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:43:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:43:42,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:42,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:43:42,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:43:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:43:42,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:43:42,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:42,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:42,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:43:42,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:43:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:43:42,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:43:42,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:43:42,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:43:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:43:42,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 06:43:42,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:43:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:43:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:43:42,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:43:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:43:42,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 06:43:42,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-27 06:43:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:43:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:42,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:42,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:42,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:42,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:42,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:43:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:42,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:43:42,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:42,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:42,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:42,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:43:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:42,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:43:42,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:42,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:42,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:42,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:43:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:42,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:42,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:42,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:43:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:42,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:43:42,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:43:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:43:42,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:42,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:42,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:43:42,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:42,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:43:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:42,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:42,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:42,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:42,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:42,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 06:43:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:42,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:42,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:42,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:42,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:42,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 06:43:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:42,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:42,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:42,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:42,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:42,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:42,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 06:43:42,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804262460] [2020-10-27 06:43:42,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:43:42,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 06:43:42,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839677177] [2020-10-27 06:43:42,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 06:43:42,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:43:42,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 06:43:42,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-27 06:43:42,954 INFO L87 Difference]: Start difference. First operand 2698 states and 3364 transitions. Second operand 10 states. [2020-10-27 06:43:43,122 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:43:46,590 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 06:43:49,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:43:49,323 INFO L93 Difference]: Finished difference Result 10138 states and 13536 transitions. [2020-10-27 06:43:49,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 06:43:49,324 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2020-10-27 06:43:49,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:43:49,368 INFO L225 Difference]: With dead ends: 10138 [2020-10-27 06:43:49,368 INFO L226 Difference]: Without dead ends: 7462 [2020-10-27 06:43:49,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2020-10-27 06:43:49,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7462 states. [2020-10-27 06:43:50,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7462 to 5392. [2020-10-27 06:43:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5392 states. [2020-10-27 06:43:50,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 6677 transitions. [2020-10-27 06:43:50,281 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 6677 transitions. Word has length 142 [2020-10-27 06:43:50,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:43:50,281 INFO L481 AbstractCegarLoop]: Abstraction has 5392 states and 6677 transitions. [2020-10-27 06:43:50,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 06:43:50,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 6677 transitions. [2020-10-27 06:43:50,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 06:43:50,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:43:50,283 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:43:50,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 06:43:50,284 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:43:50,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:43:50,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1876113098, now seen corresponding path program 1 times [2020-10-27 06:43:50,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:43:50,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600913445] [2020-10-27 06:43:50,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:43:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:50,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:50,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:50,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:50,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:50,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:50,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:50,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:50,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 06:43:55,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 06:43:55,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 06:43:55,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 06:43:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:43:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 06:43:55,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,432 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:43:55,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:43:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:43:55,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 06:43:55,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:55,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:55,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:43:55,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:43:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:43:55,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:55,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:55,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:55,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:43:55,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:43:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:43:55,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:43:55,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:43:55,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:43:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:43:55,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:55,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:43:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:43:55,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:43:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:43:55,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 06:43:55,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:43:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:43:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:43:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:43:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:43:55,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 06:43:55,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 06:43:55,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 06:43:55,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:43:55,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:43:55,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:43:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:55,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:43:55,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:43:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:43:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:43:55,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:43:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:55,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:55,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:43:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:43:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:55,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:55,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:55,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:43:55,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:55,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:43:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:55,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:55,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:43:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:55,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:43:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:43:55,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:43:55,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:55,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 06:43:55,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:55,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:43:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:43:55,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:43:55,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:55,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:43:55,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:55,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:43:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:55,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:55,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:55,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 06:43:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:55,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:55,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:55,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:55,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:55,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 06:43:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:43:55,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:43:55,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:43:55,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:43:55,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:43:55,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:43:55,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:43:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:43:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:43:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:43:55,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:43:55,760 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 06:43:55,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600913445] [2020-10-27 06:43:55,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:43:55,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 06:43:55,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419561875] [2020-10-27 06:43:55,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 06:43:55,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:43:55,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 06:43:55,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-27 06:43:55,762 INFO L87 Difference]: Start difference. First operand 5392 states and 6677 transitions. Second operand 14 states. [2020-10-27 06:43:55,917 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:43:56,661 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 06:43:56,814 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 06:43:56,961 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 06:43:57,132 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 06:44:01,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:44:01,333 INFO L93 Difference]: Finished difference Result 12670 states and 16754 transitions. [2020-10-27 06:44:01,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 06:44:01,334 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 142 [2020-10-27 06:44:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:44:01,369 INFO L225 Difference]: With dead ends: 12670 [2020-10-27 06:44:01,369 INFO L226 Difference]: Without dead ends: 7300 [2020-10-27 06:44:01,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 06:44:01,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7300 states. [2020-10-27 06:44:02,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7300 to 5512. [2020-10-27 06:44:02,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5512 states. [2020-10-27 06:44:02,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5512 states to 5512 states and 6717 transitions. [2020-10-27 06:44:02,235 INFO L78 Accepts]: Start accepts. Automaton has 5512 states and 6717 transitions. Word has length 142 [2020-10-27 06:44:02,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:44:02,236 INFO L481 AbstractCegarLoop]: Abstraction has 5512 states and 6717 transitions. [2020-10-27 06:44:02,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 06:44:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5512 states and 6717 transitions. [2020-10-27 06:44:02,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 06:44:02,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:44:02,239 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:44:02,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 06:44:02,239 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:44:02,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:44:02,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1765058056, now seen corresponding path program 1 times [2020-10-27 06:44:02,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:44:02,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635266237] [2020-10-27 06:44:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:44:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:02,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:02,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:02,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:02,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:02,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:02,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:04,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 06:44:07,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 06:44:07,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 06:44:07,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 06:44:07,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:44:07,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 06:44:07,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,402 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:44:07,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:44:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:44:07,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 06:44:07,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:44:07,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:44:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:44:07,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:07,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:44:07,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:44:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:44:07,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:07,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:07,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:07,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:44:07,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:44:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:44:07,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 06:44:07,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 06:44:07,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:44:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:44:07,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 06:44:07,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:44:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:44:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:44:07,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:44:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:44:07,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 06:44:07,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:07,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-27 06:44:07,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:07,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:44:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:07,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:07,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:07,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:44:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:07,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:07,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:07,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:44:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:07,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:07,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:07,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:07,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:07,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:44:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:07,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:07,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:07,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:44:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:07,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:07,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:07,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:07,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:07,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:44:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:44:07,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:44:07,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:44:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:07,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:44:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:07,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:07,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:07,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 06:44:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:07,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:07,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:07,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:07,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:07,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 06:44:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:07,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:07,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:07,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:07,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:07,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:07,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:07,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:07,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:07,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:07,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 06:44:07,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635266237] [2020-10-27 06:44:07,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:44:07,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 06:44:07,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796470319] [2020-10-27 06:44:07,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 06:44:07,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:44:07,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 06:44:07,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 06:44:07,625 INFO L87 Difference]: Start difference. First operand 5512 states and 6717 transitions. Second operand 10 states. [2020-10-27 06:44:07,770 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:44:11,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:44:11,905 INFO L93 Difference]: Finished difference Result 13334 states and 17028 transitions. [2020-10-27 06:44:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 06:44:11,905 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2020-10-27 06:44:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:44:11,939 INFO L225 Difference]: With dead ends: 13334 [2020-10-27 06:44:11,939 INFO L226 Difference]: Without dead ends: 7844 [2020-10-27 06:44:11,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-10-27 06:44:11,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7844 states. [2020-10-27 06:44:12,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7844 to 6276. [2020-10-27 06:44:12,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6276 states. [2020-10-27 06:44:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6276 states to 6276 states and 7432 transitions. [2020-10-27 06:44:12,910 INFO L78 Accepts]: Start accepts. Automaton has 6276 states and 7432 transitions. Word has length 142 [2020-10-27 06:44:12,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:44:12,910 INFO L481 AbstractCegarLoop]: Abstraction has 6276 states and 7432 transitions. [2020-10-27 06:44:12,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 06:44:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand 6276 states and 7432 transitions. [2020-10-27 06:44:12,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 06:44:12,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:44:12,913 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:44:12,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 06:44:12,914 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:44:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:44:12,914 INFO L82 PathProgramCache]: Analyzing trace with hash 401466040, now seen corresponding path program 1 times [2020-10-27 06:44:12,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:44:12,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462810276] [2020-10-27 06:44:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:44:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:12,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:12,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:12,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:13,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:13,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:13,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:14,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:14,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:14,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:14,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:14,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:14,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 06:44:17,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-27 06:44:17,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4448 [2020-10-27 06:44:17,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:17,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 06:44:17,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 06:44:17,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,514 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:44:17,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:44:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:44:17,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 06:44:17,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:44:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:44:17,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:44:17,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:44:17,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:44:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:44:17,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:17,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:17,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:17,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:44:17,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:44:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:44:17,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:44:17,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 06:44:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:44:17,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:44:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:44:17,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:44:17,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:44:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:44:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:44:17,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:44:17,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-27 06:44:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:44:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:17,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:17,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:44:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:17,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:17,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:44:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:17,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:17,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:17,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:44:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:17,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:17,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:44:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:17,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:17,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:44:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:44:17,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:17,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:44:17,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:44:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:17,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:17,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 06:44:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:17,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:17,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 06:44:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:17,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:17,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:17,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:17,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:17,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:17,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:17,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:17,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 06:44:17,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462810276] [2020-10-27 06:44:17,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:44:17,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 06:44:17,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309662085] [2020-10-27 06:44:17,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 06:44:17,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:44:17,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 06:44:17,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 06:44:17,699 INFO L87 Difference]: Start difference. First operand 6276 states and 7432 transitions. Second operand 9 states. [2020-10-27 06:44:17,843 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 06:44:18,044 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:44:21,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:44:21,858 INFO L93 Difference]: Finished difference Result 14104 states and 17337 transitions. [2020-10-27 06:44:21,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 06:44:21,858 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 142 [2020-10-27 06:44:21,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:44:21,895 INFO L225 Difference]: With dead ends: 14104 [2020-10-27 06:44:21,895 INFO L226 Difference]: Without dead ends: 7844 [2020-10-27 06:44:21,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-10-27 06:44:21,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7844 states. [2020-10-27 06:44:22,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7844 to 6276. [2020-10-27 06:44:22,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6276 states. [2020-10-27 06:44:22,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6276 states to 6276 states and 7431 transitions. [2020-10-27 06:44:22,730 INFO L78 Accepts]: Start accepts. Automaton has 6276 states and 7431 transitions. Word has length 142 [2020-10-27 06:44:22,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:44:22,730 INFO L481 AbstractCegarLoop]: Abstraction has 6276 states and 7431 transitions. [2020-10-27 06:44:22,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 06:44:22,731 INFO L276 IsEmpty]: Start isEmpty. Operand 6276 states and 7431 transitions. [2020-10-27 06:44:22,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 06:44:22,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:44:22,733 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:44:22,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 06:44:22,734 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:44:22,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:44:22,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1108062646, now seen corresponding path program 1 times [2020-10-27 06:44:22,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:44:22,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65303274] [2020-10-27 06:44:22,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:44:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:22,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:22,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:22,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:22,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:22,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:23,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:24,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:24,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:24,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:24,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:24,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:24,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:24,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:27,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:27,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 06:44:27,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-27 06:44:27,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 06:44:27,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 06:44:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-27 06:44:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-27 06:44:27,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:27,914 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:44:27,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:44:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:27,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:27,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:27,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:44:27,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:27,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:44:27,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:27,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:27,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:44:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:27,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:27,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:27,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:44:27,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:27,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:27,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:27,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:27,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:27,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:27,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:27,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:44:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:27,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:27,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:27,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:44:27,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:27,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:27,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:27,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:27,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:27,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:27,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:27,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:44:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:27,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:27,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:27,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:44:27,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:27,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:44:27,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:44:27,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:44:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 06:44:28,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:44:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:44:28,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:28,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 06:44:28,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:44:28,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:44:28,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 06:44:28,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:44:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:28,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:28,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:44:28,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:28,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:28,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:28,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:44:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:28,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:28,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:28,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:28,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:28,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:28,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:44:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:28,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:28,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:28,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:28,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:44:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:28,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:28,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:28,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:28,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:44:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:28,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:28,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:28,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:28,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:28,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:28,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:44:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:44:28,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:28,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:44:28,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:28,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:28,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 06:44:28,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:44:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:28,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 06:44:28,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:44:28,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 06:44:28,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 06:44:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:28,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:28,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:28,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:28,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:28,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:28,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 06:44:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:28,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:28,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:28,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:28,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:28,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:28,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:28,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 06:44:28,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65303274] [2020-10-27 06:44:28,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 06:44:28,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 06:44:28,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646979445] [2020-10-27 06:44:28,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 06:44:28,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:44:28,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 06:44:28,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 06:44:28,145 INFO L87 Difference]: Start difference. First operand 6276 states and 7431 transitions. Second operand 9 states. [2020-10-27 06:44:28,303 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 06:44:36,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:44:36,307 INFO L93 Difference]: Finished difference Result 22667 states and 31954 transitions. [2020-10-27 06:44:36,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 06:44:36,307 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 142 [2020-10-27 06:44:36,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:44:36,380 INFO L225 Difference]: With dead ends: 22667 [2020-10-27 06:44:36,380 INFO L226 Difference]: Without dead ends: 16415 [2020-10-27 06:44:36,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2020-10-27 06:44:36,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16415 states. [2020-10-27 06:44:38,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16415 to 12231. [2020-10-27 06:44:38,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12231 states. [2020-10-27 06:44:38,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12231 states to 12231 states and 15118 transitions. [2020-10-27 06:44:38,045 INFO L78 Accepts]: Start accepts. Automaton has 12231 states and 15118 transitions. Word has length 142 [2020-10-27 06:44:38,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:44:38,045 INFO L481 AbstractCegarLoop]: Abstraction has 12231 states and 15118 transitions. [2020-10-27 06:44:38,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 06:44:38,046 INFO L276 IsEmpty]: Start isEmpty. Operand 12231 states and 15118 transitions. [2020-10-27 06:44:38,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-27 06:44:38,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:44:38,051 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:44:38,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 06:44:38,051 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:44:38,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:44:38,051 INFO L82 PathProgramCache]: Analyzing trace with hash 133657892, now seen corresponding path program 1 times [2020-10-27 06:44:38,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:44:38,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473020323] [2020-10-27 06:44:38,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:44:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:38,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:38,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:38,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:38,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:38,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:38,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:38,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-27 06:44:40,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 06:44:40,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2303 [2020-10-27 06:44:40,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 06:44:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-27 06:44:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 06:44:40,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,510 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:44:40,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:44:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:44:40,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 06:44:40,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:40,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:44:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:44:40,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:40,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:40,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:44:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:44:40,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:40,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:40,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:40,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:44:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:44:40,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:44:40,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:40,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 06:44:40,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:44:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:44:40,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 06:44:40,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 06:44:40,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:44:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:44:40,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 06:44:40,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:44:40,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:44:40,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 06:44:40,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:44:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:40,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:44:40,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:40,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:44:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:40,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:40,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:44:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:40,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:40,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:40,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:40,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:44:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:40,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:40,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:40,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:44:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:40,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:40,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:40,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:40,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:44:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:44:40,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:44:40,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:40,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 06:44:40,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:44:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:40,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:40,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:40,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:40,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:44:40,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 06:44:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:40,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:40,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:40,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 06:44:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:40,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:40,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:40,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:40,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:40,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:40,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:40,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:40,726 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-27 06:44:40,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473020323] [2020-10-27 06:44:40,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:44:40,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 06:44:40,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284397511] [2020-10-27 06:44:40,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 06:44:40,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:44:40,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 06:44:40,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 06:44:40,728 INFO L87 Difference]: Start difference. First operand 12231 states and 15118 transitions. Second operand 9 states. [2020-10-27 06:44:40,931 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:44:49,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:44:49,742 INFO L93 Difference]: Finished difference Result 36950 states and 54806 transitions. [2020-10-27 06:44:49,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 06:44:49,742 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 144 [2020-10-27 06:44:49,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:44:49,854 INFO L225 Difference]: With dead ends: 36950 [2020-10-27 06:44:49,855 INFO L226 Difference]: Without dead ends: 24752 [2020-10-27 06:44:49,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2020-10-27 06:44:49,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24752 states. [2020-10-27 06:44:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24752 to 18828. [2020-10-27 06:44:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18828 states. [2020-10-27 06:44:52,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18828 states to 18828 states and 24530 transitions. [2020-10-27 06:44:52,621 INFO L78 Accepts]: Start accepts. Automaton has 18828 states and 24530 transitions. Word has length 144 [2020-10-27 06:44:52,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:44:52,622 INFO L481 AbstractCegarLoop]: Abstraction has 18828 states and 24530 transitions. [2020-10-27 06:44:52,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 06:44:52,622 INFO L276 IsEmpty]: Start isEmpty. Operand 18828 states and 24530 transitions. [2020-10-27 06:44:52,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-27 06:44:52,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:44:52,628 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:44:52,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 06:44:52,628 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:44:52,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:44:52,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1437830314, now seen corresponding path program 1 times [2020-10-27 06:44:52,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:44:52,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013995653] [2020-10-27 06:44:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:44:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:52,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:52,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:52,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:52,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:52,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:53,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:53,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-27 06:44:53,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 06:44:53,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1119 [2020-10-27 06:44:53,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 06:44:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 06:44:53,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 06:44:53,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:53,906 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:44:53,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:44:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:53,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:53,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:53,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:44:53,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:53,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:44:53,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:53,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:53,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:44:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:53,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:53,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:53,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:44:53,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:53,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:53,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:53,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:53,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:44:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:53,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:53,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:53,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:44:53,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:53,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:53,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:53,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:53,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:44:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:53,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:53,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:53,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:44:53,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:53,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:44:53,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:53,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:53,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:44:53,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:53,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:44:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:53,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:53,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:53,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:44:53,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:53,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:44:53,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 06:44:53,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:53,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:44:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:54,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:54,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:54,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:44:54,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:54,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 06:44:54,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:44:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:44:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 06:44:54,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:54,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:44:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:54,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:54,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:54,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:54,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:54,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:44:54,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:54,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:54,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:44:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:54,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:54,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:54,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:54,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:54,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:54,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:54,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:54,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:54,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:54,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:54,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:44:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:54,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:54,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:54,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:54,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:54,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:54,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:54,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:54,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:44:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:54,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:54,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:54,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:54,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:54,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:54,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:54,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:54,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:54,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:54,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:54,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:44:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:54,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:54,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:54,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:44:54,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:54,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:54,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:54,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:54,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:54,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:44:54,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:54,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:44:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:54,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:54,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:54,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:44:54,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:54,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:44:54,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:54,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:54,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:54,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 06:44:54,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:54,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:44:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:54,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:54,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:54,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:54,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:54,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:54,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:44:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:44:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:44:54,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:54,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 06:44:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:54,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:54,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:54,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:54,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:54,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:44:54,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:54,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:54,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:54,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:54,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:54,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 06:44:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:44:54,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:44:54,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:44:54,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:44:54,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:44:54,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:44:54,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:44:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:44:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:44:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:44:54,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:44:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-27 06:44:54,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013995653] [2020-10-27 06:44:54,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:44:54,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 06:44:54,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3268888] [2020-10-27 06:44:54,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 06:44:54,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:44:54,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 06:44:54,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 06:44:54,104 INFO L87 Difference]: Start difference. First operand 18828 states and 24530 transitions. Second operand 9 states. [2020-10-27 06:44:54,254 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:45:08,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:45:08,819 INFO L93 Difference]: Finished difference Result 75022 states and 148242 transitions. [2020-10-27 06:45:08,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 06:45:08,820 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2020-10-27 06:45:08,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:45:09,736 INFO L225 Difference]: With dead ends: 75022 [2020-10-27 06:45:09,736 INFO L226 Difference]: Without dead ends: 56227 [2020-10-27 06:45:09,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2020-10-27 06:45:09,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56227 states. [2020-10-27 06:45:16,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56227 to 36913. [2020-10-27 06:45:16,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36913 states. [2020-10-27 06:45:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36913 states to 36913 states and 53474 transitions. [2020-10-27 06:45:16,545 INFO L78 Accepts]: Start accepts. Automaton has 36913 states and 53474 transitions. Word has length 146 [2020-10-27 06:45:16,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:45:16,545 INFO L481 AbstractCegarLoop]: Abstraction has 36913 states and 53474 transitions. [2020-10-27 06:45:16,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 06:45:16,545 INFO L276 IsEmpty]: Start isEmpty. Operand 36913 states and 53474 transitions. [2020-10-27 06:45:16,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-27 06:45:16,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:45:16,560 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:45:16,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 06:45:16,560 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:45:16,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:45:16,561 INFO L82 PathProgramCache]: Analyzing trace with hash -2022601964, now seen corresponding path program 1 times [2020-10-27 06:45:16,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:45:16,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979921565] [2020-10-27 06:45:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:45:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:16,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:16,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:16,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:16,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-27 06:45:17,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 06:45:17,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-10-27 06:45:17,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:45:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 06:45:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 06:45:17,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,307 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 06:45:17,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:45:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:45:17,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 06:45:17,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:45:17,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:45:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:45:17,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:45:17,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:45:17,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:45:17,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:45:17,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:45:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:45:17,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:45:17,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:45:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:45:17,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:45:17,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:45:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 06:45:17,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:45:17,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:45:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 06:45:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:45:17,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 06:45:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:45:17,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:45:17,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:45:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 06:45:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 06:45:17,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 06:45:17,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-27 06:45:17,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:45:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:45:17,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:45:17,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:45:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:45:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:45:17,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:45:17,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:45:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 06:45:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:45:17,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:45:17,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:45:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 06:45:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:45:17,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:45:17,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:45:17,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 06:45:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:45:17,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:45:17,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:45:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 06:45:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 06:45:17,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:45:17,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 06:45:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 06:45:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:45:17,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:45:17,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:45:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:45:17,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 06:45:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:45:17,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:45:17,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:45:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 06:45:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:17,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:17,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:45:17,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:45:17,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:45:17,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:45:17,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:45:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:45:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:45:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:45:17,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:45:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-27 06:45:17,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979921565] [2020-10-27 06:45:17,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:45:17,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 06:45:17,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456647373] [2020-10-27 06:45:17,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 06:45:17,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:45:17,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 06:45:17,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 06:45:17,557 INFO L87 Difference]: Start difference. First operand 36913 states and 53474 transitions. Second operand 9 states. [2020-10-27 06:45:17,707 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 06:45:17,905 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 06:45:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:45:27,977 INFO L93 Difference]: Finished difference Result 86305 states and 140643 transitions. [2020-10-27 06:45:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 06:45:27,978 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2020-10-27 06:45:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:45:28,236 INFO L225 Difference]: With dead ends: 86305 [2020-10-27 06:45:28,237 INFO L226 Difference]: Without dead ends: 49425 [2020-10-27 06:45:28,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-10-27 06:45:28,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49425 states. [2020-10-27 06:45:34,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49425 to 36899. [2020-10-27 06:45:34,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36899 states. [2020-10-27 06:45:34,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36899 states to 36899 states and 53448 transitions. [2020-10-27 06:45:34,660 INFO L78 Accepts]: Start accepts. Automaton has 36899 states and 53448 transitions. Word has length 146 [2020-10-27 06:45:34,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:45:34,660 INFO L481 AbstractCegarLoop]: Abstraction has 36899 states and 53448 transitions. [2020-10-27 06:45:34,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 06:45:34,660 INFO L276 IsEmpty]: Start isEmpty. Operand 36899 states and 53448 transitions. [2020-10-27 06:45:34,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 06:45:34,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:45:34,668 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:45:34,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 06:45:34,668 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:45:34,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:45:34,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1849054244, now seen corresponding path program 1 times [2020-10-27 06:45:34,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:45:34,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78985914] [2020-10-27 06:45:34,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:45:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:45:34,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:34,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:34,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:34,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:35,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:45:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking...