/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:54:47,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:54:47,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:54:47,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:54:47,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:54:47,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:54:47,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:54:47,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:54:47,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:54:47,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:54:47,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:54:47,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:54:47,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:54:47,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:54:47,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:54:47,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:54:47,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:54:47,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:54:47,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:54:47,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:54:47,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:54:47,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:54:47,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:54:47,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:54:47,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:54:47,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:54:47,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:54:47,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:54:47,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:54:47,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:54:47,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:54:47,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:54:47,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:54:47,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:54:47,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:54:47,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:54:47,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:54:47,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:54:47,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:54:47,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:54:47,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:54:47,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:54:47,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:54:47,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:54:47,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:54:47,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:54:47,590 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:54:47,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:54:47,591 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:54:47,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:54:47,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:54:47,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:54:47,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:54:47,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:54:47,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:54:47,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:54:47,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:54:47,592 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:54:47,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:54:47,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:54:47,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:54:47,596 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:54:47,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:54:47,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:54:47,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:54:47,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:54:47,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:54:47,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:54:47,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:54:47,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:54:47,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:54:47,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:54:48,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:54:48,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:54:48,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:54:48,078 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:54:48,079 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:54:48,080 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-09-25 06:54:48,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/017e6eb96/f943c71673dd44b9961f6120d6257bdc/FLAGd0f71e652 [2020-09-25 06:54:48,692 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:54:48,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-09-25 06:54:48,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/017e6eb96/f943c71673dd44b9961f6120d6257bdc/FLAGd0f71e652 [2020-09-25 06:54:49,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/017e6eb96/f943c71673dd44b9961f6120d6257bdc [2020-09-25 06:54:49,039 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:54:49,046 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:54:49,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:54:49,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:54:49,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:54:49,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:54:49" (1/1) ... [2020-09-25 06:54:49,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d022c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49, skipping insertion in model container [2020-09-25 06:54:49,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:54:49" (1/1) ... [2020-09-25 06:54:49,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:54:49,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:54:49,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:54:49,386 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:54:49,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:54:49,465 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:54:49,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49 WrapperNode [2020-09-25 06:54:49,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:54:49,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:54:49,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:54:49,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:54:49,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49" (1/1) ... [2020-09-25 06:54:49,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49" (1/1) ... [2020-09-25 06:54:49,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49" (1/1) ... [2020-09-25 06:54:49,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49" (1/1) ... [2020-09-25 06:54:49,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49" (1/1) ... [2020-09-25 06:54:49,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49" (1/1) ... [2020-09-25 06:54:49,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49" (1/1) ... [2020-09-25 06:54:49,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:54:49,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:54:49,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:54:49,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:54:49,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:54:49,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:54:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:54:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-25 06:54:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-25 06:54:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-25 06:54:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-09-25 06:54:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-25 06:54:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-25 06:54:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-09-25 06:54:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-25 06:54:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-25 06:54:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-25 06:54:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-25 06:54:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-25 06:54:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-25 06:54:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-25 06:54:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-25 06:54:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-25 06:54:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-25 06:54:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-25 06:54:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-25 06:54:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-25 06:54:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:54:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:54:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:54:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-25 06:54:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-25 06:54:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-25 06:54:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-09-25 06:54:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-25 06:54:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-25 06:54:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-25 06:54:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-09-25 06:54:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-25 06:54:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-25 06:54:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-25 06:54:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-25 06:54:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-25 06:54:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-25 06:54:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-25 06:54:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-25 06:54:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-25 06:54:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-25 06:54:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-25 06:54:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-25 06:54:49,751 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:54:49,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:54:49,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:54:50,328 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:54:50,328 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-25 06:54:50,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:54:50 BoogieIcfgContainer [2020-09-25 06:54:50,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:54:50,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:54:50,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:54:50,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:54:50,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:54:49" (1/3) ... [2020-09-25 06:54:50,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb3f5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:54:50, skipping insertion in model container [2020-09-25 06:54:50,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:49" (2/3) ... [2020-09-25 06:54:50,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb3f5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:54:50, skipping insertion in model container [2020-09-25 06:54:50,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:54:50" (3/3) ... [2020-09-25 06:54:50,346 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.02.cil.c [2020-09-25 06:54:50,358 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:54:50,369 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:54:50,391 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:54:50,425 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:54:50,425 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:54:50,426 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:54:50,426 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:54:50,426 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:54:50,426 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:54:50,426 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:54:50,427 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:54:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states. [2020-09-25 06:54:50,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-25 06:54:50,473 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:54:50,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:54:50,478 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:54:50,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:54:50,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1383476838, now seen corresponding path program 1 times [2020-09-25 06:54:50,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:54:50,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766703990] [2020-09-25 06:54:50,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:54:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:50,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:50,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:51,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:52,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:52,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:53,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:55,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:55,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-25 06:54:55,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:54:55,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 06:54:55,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:55,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:54:55,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:54:55,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:54:55,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:54:55,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:54:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:55,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:55,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:55,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:54:55,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:54:55,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:55,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:55,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:55,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 06:54:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:55,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:55,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:55,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:54:55,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:55,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:54:55,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:55,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:55,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:55,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:55,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:54:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:55,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:55,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:55,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:54:55,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:55,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:54:55,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:55,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:55,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:55,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 06:54:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:55,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:55,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:55,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:54:55,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:54:55,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:55,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:55,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 06:54:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:55,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:55,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:55,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:54:55,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:55,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:54:55,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:55,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:55,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:55,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 06:54:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:56,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:56,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:54:56,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:54:56,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:56,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:56,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:56,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:54:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:56,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:56,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:56,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:54:56,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:56,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:54:56,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:56,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:56,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:56,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:56,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:56,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:54:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:56,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:56,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:56,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:54:56,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:56,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:54:56,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:56,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:56,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:56,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:56,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:56,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:56,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:54:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:56,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:56,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:54:56,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:54:56,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:56,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:56,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:56,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:54:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:56,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:56,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:56,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:54:56,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:56,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:54:56,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:56,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:56,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:56,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:56,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:56,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:56,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 06:54:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:56,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:56,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:54:56,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:54:56,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:56,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:54:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:54:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:54:56,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766703990] [2020-09-25 06:54:56,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:54:56,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:54:56,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556757995] [2020-09-25 06:54:56,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:54:56,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:54:56,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:54:56,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:54:56,110 INFO L87 Difference]: Start difference. First operand 257 states. Second operand 7 states. [2020-09-25 06:54:58,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:54:58,708 INFO L93 Difference]: Finished difference Result 946 states and 1320 transitions. [2020-09-25 06:54:58,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 06:54:58,711 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-09-25 06:54:58,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:54:58,738 INFO L225 Difference]: With dead ends: 946 [2020-09-25 06:54:58,739 INFO L226 Difference]: Without dead ends: 707 [2020-09-25 06:54:58,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:54:58,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-09-25 06:54:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 472. [2020-09-25 06:54:58,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-09-25 06:54:58,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 597 transitions. [2020-09-25 06:54:58,887 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 597 transitions. Word has length 127 [2020-09-25 06:54:58,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:54:58,888 INFO L479 AbstractCegarLoop]: Abstraction has 472 states and 597 transitions. [2020-09-25 06:54:58,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:54:58,889 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 597 transitions. [2020-09-25 06:54:58,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-25 06:54:58,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:54:58,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:54:58,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:54:58,899 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:54:58,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:54:58,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1691024482, now seen corresponding path program 1 times [2020-09-25 06:54:58,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:54:58,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726295079] [2020-09-25 06:54:58,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:54:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:58,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:58,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:59,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:59,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:59,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:00,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:03,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:03,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-25 06:55:03,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:55:03,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 06:55:03,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:03,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 06:55:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:55:03,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:04,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:55:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:55:04,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:55:04,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:04,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 06:55:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:55:04,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:55:04,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:04,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:04,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:55:04,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:04,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:55:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:55:04,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:04,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:04,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:04,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:55:04,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:04,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 06:55:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:55:04,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:55:04,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:55:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:55:04,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:04,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 06:55:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:04,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:55:04,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:55:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:04,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 06:55:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:55:04,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:55:04,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:04,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 06:55:04,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:04,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:55:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:04,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:04,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:04,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:04,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:04,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:04,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:55:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:04,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:04,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:04,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:04,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:04,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:04,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:55:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:04,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:04,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:04,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:04,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:55:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:04,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:04,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:04,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:55:04,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:04,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:04,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 06:55:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:04,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:04,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:04,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:04,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:04,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:04,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:04,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:04,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:04,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:55:04,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:04,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:04,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:55:04,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726295079] [2020-09-25 06:55:04,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:55:04,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:55:04,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273600137] [2020-09-25 06:55:04,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:55:04,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:55:04,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:55:04,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:55:04,196 INFO L87 Difference]: Start difference. First operand 472 states and 597 transitions. Second operand 8 states. [2020-09-25 06:55:05,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:55:05,865 INFO L93 Difference]: Finished difference Result 1128 states and 1479 transitions. [2020-09-25 06:55:05,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:55:05,865 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-09-25 06:55:05,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:55:05,872 INFO L225 Difference]: With dead ends: 1128 [2020-09-25 06:55:05,872 INFO L226 Difference]: Without dead ends: 700 [2020-09-25 06:55:05,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 06:55:05,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-09-25 06:55:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 460. [2020-09-25 06:55:05,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-09-25 06:55:05,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 578 transitions. [2020-09-25 06:55:05,972 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 578 transitions. Word has length 128 [2020-09-25 06:55:05,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:55:05,973 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 578 transitions. [2020-09-25 06:55:05,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:55:05,973 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 578 transitions. [2020-09-25 06:55:05,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 06:55:05,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:55:05,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:55:05,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:55:05,984 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:55:05,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:55:05,985 INFO L82 PathProgramCache]: Analyzing trace with hash -2002481605, now seen corresponding path program 1 times [2020-09-25 06:55:05,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:55:05,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684576783] [2020-09-25 06:55:05,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:55:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:06,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:06,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:06,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:06,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 06:55:10,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:55:10,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4549 [2020-09-25 06:55:10,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:55:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 06:55:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 06:55:10,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:10,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:55:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:55:10,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:55:10,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:10,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:10,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:10,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 06:55:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:55:10,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:10,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:10,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:55:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:55:10,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:10,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:10,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:10,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 06:55:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:55:10,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:55:10,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:10,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:55:10,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:10,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 06:55:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:10,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:55:10,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:10,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:55:10,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:10,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 06:55:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:55:10,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:55:10,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:55:10,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:55:10,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 06:55:10,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:10,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:55:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:10,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:10,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:10,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:10,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:55:10,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:10,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:55:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:10,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:10,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:10,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:10,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:55:10,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:10,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:55:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:10,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:10,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:55:10,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:10,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:55:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:10,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:10,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:10,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:55:10,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:10,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 06:55:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:10,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:10,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:10,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:10,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:10,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:55:10,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:10,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:10,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:10,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:10,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:55:10,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:55:10,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684576783] [2020-09-25 06:55:10,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:55:10,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:55:10,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346377989] [2020-09-25 06:55:10,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:55:10,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:55:10,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:55:10,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:55:10,865 INFO L87 Difference]: Start difference. First operand 460 states and 578 transitions. Second operand 8 states. [2020-09-25 06:55:13,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:55:13,503 INFO L93 Difference]: Finished difference Result 1786 states and 2484 transitions. [2020-09-25 06:55:13,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 06:55:13,504 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-09-25 06:55:13,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:55:13,516 INFO L225 Difference]: With dead ends: 1786 [2020-09-25 06:55:13,516 INFO L226 Difference]: Without dead ends: 1371 [2020-09-25 06:55:13,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=251, Unknown=0, NotChecked=0, Total=380 [2020-09-25 06:55:13,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2020-09-25 06:55:13,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 891. [2020-09-25 06:55:13,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-09-25 06:55:13,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1164 transitions. [2020-09-25 06:55:13,612 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1164 transitions. Word has length 132 [2020-09-25 06:55:13,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:55:13,614 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1164 transitions. [2020-09-25 06:55:13,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:55:13,614 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1164 transitions. [2020-09-25 06:55:13,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 06:55:13,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:55:13,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:55:13,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:55:13,617 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:55:13,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:55:13,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1560500581, now seen corresponding path program 1 times [2020-09-25 06:55:13,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:55:13,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32201787] [2020-09-25 06:55:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:55:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:13,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:13,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:13,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:14,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 06:55:15,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:55:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2108 [2020-09-25 06:55:15,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 06:55:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:55:15,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:15,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:55:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:55:15,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:55:15,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:15,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:15,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:15,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:15,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 06:55:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:55:15,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:55:15,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:15,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:15,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:55:15,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:15,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:55:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:55:15,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:15,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:55:15,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:15,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 06:55:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:55:15,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:55:15,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 06:55:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:55:15,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:15,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 06:55:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:15,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:15,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:55:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:15,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:15,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 06:55:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:55:15,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:55:15,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:15,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 06:55:15,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:15,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:15,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:55:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:15,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:15,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:15,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:55:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:15,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:15,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:15,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:55:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:15,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:15,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:15,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:15,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:55:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:15,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:15,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:15,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:55:15,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:15,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:15,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 06:55:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:15,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:15,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:15,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:15,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:15,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:55:15,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:15,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 06:55:15,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:15,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:55:15,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32201787] [2020-09-25 06:55:15,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:55:15,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:55:15,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257615202] [2020-09-25 06:55:15,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:55:15,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:55:15,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:55:15,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:55:15,971 INFO L87 Difference]: Start difference. First operand 891 states and 1164 transitions. Second operand 8 states. [2020-09-25 06:55:17,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:55:17,685 INFO L93 Difference]: Finished difference Result 2198 states and 3002 transitions. [2020-09-25 06:55:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 06:55:17,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-09-25 06:55:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:55:17,697 INFO L225 Difference]: With dead ends: 2198 [2020-09-25 06:55:17,697 INFO L226 Difference]: Without dead ends: 1350 [2020-09-25 06:55:17,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:55:17,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2020-09-25 06:55:17,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 882. [2020-09-25 06:55:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-09-25 06:55:17,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1148 transitions. [2020-09-25 06:55:17,775 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1148 transitions. Word has length 132 [2020-09-25 06:55:17,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:55:17,775 INFO L479 AbstractCegarLoop]: Abstraction has 882 states and 1148 transitions. [2020-09-25 06:55:17,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:55:17,775 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1148 transitions. [2020-09-25 06:55:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-09-25 06:55:17,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:55:17,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:55:17,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:55:17,778 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:55:17,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:55:17,778 INFO L82 PathProgramCache]: Analyzing trace with hash -215676582, now seen corresponding path program 1 times [2020-09-25 06:55:17,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:55:17,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153909372] [2020-09-25 06:55:17,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:55:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:17,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:17,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:18,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:18,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:18,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-09-25 06:55:18,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:55:18,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1141 [2020-09-25 06:55:18,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:18,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:18,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:55:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-25 06:55:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 06:55:18,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:19,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:55:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:55:19,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:55:19,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:19,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 06:55:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:55:19,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:55:19,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:19,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:55:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:55:19,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:19,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:19,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:19,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 06:55:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:55:19,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:55:19,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:19,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 06:55:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:19,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:55:19,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:19,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:19,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 06:55:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:55:19,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:55:19,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 06:55:19,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:55:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:19,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:19,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:19,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:55:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:19,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:19,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:19,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:19,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:55:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:19,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:19,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:19,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:55:19,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:55:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:19,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:55:19,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:19,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:55:19,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 06:55:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:19,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:19,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:19,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:19,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:19,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:55:19,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:19,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:55:19,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:19,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:55:19,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153909372] [2020-09-25 06:55:19,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:55:19,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:55:19,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748803365] [2020-09-25 06:55:19,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:55:19,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:55:19,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:55:19,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:55:19,221 INFO L87 Difference]: Start difference. First operand 882 states and 1148 transitions. Second operand 7 states. [2020-09-25 06:55:21,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:55:21,699 INFO L93 Difference]: Finished difference Result 3462 states and 5177 transitions. [2020-09-25 06:55:21,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:55:21,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-09-25 06:55:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:55:21,719 INFO L225 Difference]: With dead ends: 3462 [2020-09-25 06:55:21,720 INFO L226 Difference]: Without dead ends: 2623 [2020-09-25 06:55:21,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:55:21,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2020-09-25 06:55:21,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 1877. [2020-09-25 06:55:21,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1877 states. [2020-09-25 06:55:21,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2584 transitions. [2020-09-25 06:55:21,870 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2584 transitions. Word has length 137 [2020-09-25 06:55:21,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:55:21,872 INFO L479 AbstractCegarLoop]: Abstraction has 1877 states and 2584 transitions. [2020-09-25 06:55:21,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:55:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2584 transitions. [2020-09-25 06:55:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 06:55:21,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:55:21,878 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:55:21,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:55:21,878 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:55:21,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:55:21,879 INFO L82 PathProgramCache]: Analyzing trace with hash -851834665, now seen corresponding path program 1 times [2020-09-25 06:55:21,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:55:21,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963197012] [2020-09-25 06:55:21,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:55:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:21,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 06:55:22,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 06:55:22,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:22,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 06:55:22,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:55:22,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:22,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:55:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:55:22,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:55:22,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:22,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 06:55:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:55:22,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:22,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:22,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:55:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:55:22,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:22,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:22,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 06:55:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:55:22,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:55:22,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:22,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 06:55:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:22,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:55:22,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:22,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 06:55:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:55:22,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:22,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:22,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:55:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:22,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:22,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:22,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:55:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:22,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:22,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:22,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:55:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:22,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:22,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:22,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:55:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:22,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:22,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:22,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 06:55:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:22,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:22,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:22,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:22,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:22,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:55:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:22,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:55:22,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:22,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:55:22,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:22,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:55:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:22,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:22,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:22,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:22,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:22,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:55:22,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:22,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:22,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:22,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:22,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:55:22,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 06:55:22,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963197012] [2020-09-25 06:55:22,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:55:22,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:55:22,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317279773] [2020-09-25 06:55:22,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:55:22,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:55:22,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:55:22,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:55:22,322 INFO L87 Difference]: Start difference. First operand 1877 states and 2584 transitions. Second operand 8 states. [2020-09-25 06:55:25,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:55:25,395 INFO L93 Difference]: Finished difference Result 7424 states and 12162 transitions. [2020-09-25 06:55:25,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 06:55:25,396 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-09-25 06:55:25,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:55:25,440 INFO L225 Difference]: With dead ends: 7424 [2020-09-25 06:55:25,440 INFO L226 Difference]: Without dead ends: 5591 [2020-09-25 06:55:25,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2020-09-25 06:55:25,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5591 states. [2020-09-25 06:55:25,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5591 to 4246. [2020-09-25 06:55:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4246 states. [2020-09-25 06:55:25,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4246 states to 4246 states and 6487 transitions. [2020-09-25 06:55:25,830 INFO L78 Accepts]: Start accepts. Automaton has 4246 states and 6487 transitions. Word has length 175 [2020-09-25 06:55:25,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:55:25,830 INFO L479 AbstractCegarLoop]: Abstraction has 4246 states and 6487 transitions. [2020-09-25 06:55:25,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:55:25,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4246 states and 6487 transitions. [2020-09-25 06:55:25,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-25 06:55:25,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:55:25,847 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:55:25,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:55:25,848 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:55:25,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:55:25,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1305762809, now seen corresponding path program 1 times [2020-09-25 06:55:25,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:55:25,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539431984] [2020-09-25 06:55:25,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:55:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:25,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:26,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:26,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:26,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:30,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:30,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-25 06:55:30,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:55:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 06:55:30,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:30,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-09-25 06:55:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 06:55:30,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:30,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:55:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:30,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:30,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:30,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:55:30,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:30,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:55:30,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:30,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:30,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:30,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 06:55:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:30,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:30,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:30,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:55:30,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:30,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:55:30,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:30,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:30,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:55:30,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:55:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:30,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:30,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:30,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:55:30,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:30,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:30,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:30,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:30,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:30,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:30,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:30,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 06:55:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:55:31,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:55:31,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 06:55:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:31,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:55:31,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 06:55:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:55:31,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:55:31,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:55:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:31,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:31,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:55:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:31,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:31,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:55:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:31,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:55:31,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:55:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:31,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:31,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 06:55:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:31,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:55:31,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:55:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:31,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:55:31,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:55:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:31,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:55:31,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 06:55:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 06:55:31,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:55:31,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 06:55:31,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:31,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:55:31,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 06:55:31,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:55:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 06:55:31,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:55:31,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 06:55:31,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 06:55:31,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:55:31,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:55:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 06:55:31,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:55:31,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 06:55:31,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:31,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:55:31,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:55:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:31,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:55:31,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:55:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:55:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:55:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:55:31,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:55:31,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:31,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:55:31,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:55:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:31,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:55:31,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:55:31,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:55:31,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:55:31,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:55:31,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:55:31,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:55:31,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:55:31,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:55:31,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:55:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:55:31,835 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-25 06:55:31,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539431984] [2020-09-25 06:55:31,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:55:31,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:55:31,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087067923] [2020-09-25 06:55:31,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:55:31,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:55:31,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:55:31,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:55:31,838 INFO L87 Difference]: Start difference. First operand 4246 states and 6487 transitions. Second operand 10 states. [2020-09-25 06:55:36,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:55:36,089 INFO L93 Difference]: Finished difference Result 12472 states and 22531 transitions. [2020-09-25 06:55:36,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 06:55:36,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 231 [2020-09-25 06:55:36,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:55:36,153 INFO L225 Difference]: With dead ends: 12472 [2020-09-25 06:55:36,153 INFO L226 Difference]: Without dead ends: 8273 [2020-09-25 06:55:36,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 06:55:36,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8273 states. [2020-09-25 06:55:36,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8273 to 6346. [2020-09-25 06:55:36,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6346 states. [2020-09-25 06:55:36,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 9426 transitions. [2020-09-25 06:55:36,884 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 9426 transitions. Word has length 231 [2020-09-25 06:55:36,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:55:36,885 INFO L479 AbstractCegarLoop]: Abstraction has 6346 states and 9426 transitions. [2020-09-25 06:55:36,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:55:36,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 9426 transitions. [2020-09-25 06:55:36,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 06:55:36,904 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:55:36,904 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 06:55:36,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:55:36,905 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:55:36,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:55:36,905 INFO L82 PathProgramCache]: Analyzing trace with hash -561465249, now seen corresponding path program 1 times [2020-09-25 06:55:36,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:55:36,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246561340] [2020-09-25 06:55:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:55:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:55:36,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking...