/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=0.8 --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.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:03:52,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:03:52,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:03:52,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:03:52,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:03:52,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:03:52,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:03:52,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:03:52,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:03:52,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:03:52,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:03:52,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:03:52,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:03:52,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:03:52,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:03:52,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:03:52,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:03:52,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:03:52,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:03:52,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:03:52,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:03:52,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:03:52,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:03:52,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:03:52,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:03:52,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:03:52,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:03:52,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:03:52,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:03:52,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:03:52,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:03:52,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:03:52,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:03:52,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:03:52,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:03:52,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:03:52,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:03:52,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:03:52,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:03:52,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:03:52,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:03:52,488 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 08:03:52,541 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:03:52,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:03:52,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:03:52,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:03:52,544 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:03:52,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:03:52,545 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:03:52,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:03:52,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:03:52,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:03:52,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:03:52,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:03:52,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:03:52,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:03:52,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:03:52,548 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:03:52,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:03:52,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:03:52,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:03:52,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:03:52,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:03:52,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:03:52,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:03:52,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:03:52,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:03:52,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:03:52,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:03:52,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:03:52,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:03:52,551 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 08:03:53,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:03:53,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:03:53,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:03:53,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:03:53,118 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:03:53,119 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-09-25 08:03:53,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/009ed4a49/f58abad8e5be4a4189fb6201e7dabc72/FLAGcfab94ebf [2020-09-25 08:03:53,771 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:03:53,772 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-09-25 08:03:53,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/009ed4a49/f58abad8e5be4a4189fb6201e7dabc72/FLAGcfab94ebf [2020-09-25 08:03:54,081 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/009ed4a49/f58abad8e5be4a4189fb6201e7dabc72 [2020-09-25 08:03:54,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:03:54,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:03:54,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:03:54,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:03:54,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:03:54,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:03:54" (1/1) ... [2020-09-25 08:03:54,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1265c732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54, skipping insertion in model container [2020-09-25 08:03:54,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:03:54" (1/1) ... [2020-09-25 08:03:54,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:03:54,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:03:54,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:03:54,459 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:03:54,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:03:54,523 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:03:54,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54 WrapperNode [2020-09-25 08:03:54,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:03:54,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:03:54,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:03:54,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:03:54,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54" (1/1) ... [2020-09-25 08:03:54,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54" (1/1) ... [2020-09-25 08:03:54,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54" (1/1) ... [2020-09-25 08:03:54,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54" (1/1) ... [2020-09-25 08:03:54,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54" (1/1) ... [2020-09-25 08:03:54,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54" (1/1) ... [2020-09-25 08:03:54,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54" (1/1) ... [2020-09-25 08:03:54,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:03:54,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:03:54,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:03:54,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:03:54,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54" (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 08:03:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:03:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:03:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-25 08:03:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-25 08:03:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-25 08:03:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-25 08:03:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-25 08:03:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-25 08:03:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-25 08:03:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-25 08:03:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-25 08:03:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-25 08:03:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-25 08:03:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-25 08:03:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-25 08:03:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-25 08:03:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-25 08:03:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-25 08:03:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-25 08:03:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-25 08:03:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:03:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:03:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:03:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-25 08:03:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-25 08:03:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-25 08:03:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-25 08:03:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-25 08:03:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-25 08:03:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-25 08:03:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-25 08:03:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-25 08:03:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-25 08:03:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-25 08:03:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-25 08:03:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-25 08:03:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-25 08:03:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-25 08:03:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-25 08:03:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-25 08:03:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-25 08:03:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:03:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:03:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:03:55,315 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:03:55,315 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:03:55,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:03:55 BoogieIcfgContainer [2020-09-25 08:03:55,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:03:55,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:03:55,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:03:55,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:03:55,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:03:54" (1/3) ... [2020-09-25 08:03:55,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b93ab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:03:55, skipping insertion in model container [2020-09-25 08:03:55,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:54" (2/3) ... [2020-09-25 08:03:55,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b93ab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:03:55, skipping insertion in model container [2020-09-25 08:03:55,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:03:55" (3/3) ... [2020-09-25 08:03:55,335 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-09-25 08:03:55,347 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:03:55,359 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:03:55,382 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:03:55,416 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:03:55,417 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:03:55,417 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:03:55,417 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:03:55,417 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:03:55,417 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:03:55,417 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:03:55,418 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:03:55,446 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2020-09-25 08:03:55,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 08:03:55,460 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:03:55,462 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] [2020-09-25 08:03:55,463 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:03:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:03:55,470 INFO L82 PathProgramCache]: Analyzing trace with hash 486796623, now seen corresponding path program 1 times [2020-09-25 08:03:55,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:03:55,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729386259] [2020-09-25 08:03:55,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:03:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:55,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:56,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:56,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:56,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:57,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:58,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:58,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 08:03:58,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:03:58,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2939 [2020-09-25 08:03:58,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:58,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:03:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-09-25 08:03:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:03:58,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:03:58,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:03:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:58,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:58,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:58,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:03:58,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:03:58,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 08:03:58,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:58,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:58,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:03:58,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:03:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:03:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:03:58,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:03:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:58,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:58,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:58,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:03:58,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:03:58,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:03:58,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:58,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:58,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:03:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:03:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:03:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:03:58,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 08:03:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:58,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:58,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:58,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:03:58,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:03:58,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:03:58,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:58,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:58,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:03:58,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:03:58,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:03:58,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:03:58,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:03:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:58,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:58,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:58,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:03:58,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:03:58,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:03:58,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:58,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:03:58,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:03:58,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:03:58,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 08:03:58,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:03:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:58,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:58,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:58,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:03:58,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:03:58,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:03:58,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:58,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:03:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:03:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:03:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:03:58,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 08:03:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:58,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:58,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:58,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:03:58,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:03:58,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:03:58,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:58,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:03:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:03:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:03:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:03:58,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:03:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:58,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:58,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:58,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:03:58,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:03:58,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:03:58,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:58,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:03:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:03:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:03:58,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:03:58,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 08:03:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:58,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:58,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:58,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:03:58,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:03:58,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:03:58,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:58,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:03:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:03:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:03:58,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:03:58,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:03:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:59,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:59,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:59,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:03:59,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:03:59,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:03:59,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:59,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:03:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:03:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:03:59,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:03:59,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 08:03:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:03:59,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:03:59,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:03:59,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:03:59,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:03:59,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:03:59,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:03:59,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:03:59,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:03:59,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:03:59,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:03:59,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:03:59,051 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 08:03:59,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729386259] [2020-09-25 08:03:59,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:03:59,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:03:59,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646118058] [2020-09-25 08:03:59,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:03:59,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:03:59,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:03:59,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:03:59,100 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 7 states. [2020-09-25 08:04:01,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:04:01,557 INFO L93 Difference]: Finished difference Result 708 states and 984 transitions. [2020-09-25 08:04:01,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 08:04:01,560 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2020-09-25 08:04:01,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:04:01,600 INFO L225 Difference]: With dead ends: 708 [2020-09-25 08:04:01,600 INFO L226 Difference]: Without dead ends: 516 [2020-09-25 08:04:01,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 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 08:04:01,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-25 08:04:01,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 347. [2020-09-25 08:04:01,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-25 08:04:01,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 433 transitions. [2020-09-25 08:04:01,796 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 433 transitions. Word has length 102 [2020-09-25 08:04:01,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:04:01,797 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 433 transitions. [2020-09-25 08:04:01,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:04:01,798 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 433 transitions. [2020-09-25 08:04:01,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-25 08:04:01,804 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:04:01,804 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] [2020-09-25 08:04:01,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:04:01,805 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:04:01,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:04:01,805 INFO L82 PathProgramCache]: Analyzing trace with hash -2043764254, now seen corresponding path program 1 times [2020-09-25 08:04:01,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:04:01,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318038033] [2020-09-25 08:04:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:04:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:01,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:01,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:02,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:02,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-25 08:04:03,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:04:03,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1461 [2020-09-25 08:04:03,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 08:04:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 08:04:03,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:04:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:03,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:04:03,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:03,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:04:03,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:03,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:04:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:03,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:04:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:04:03,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:04:03,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 08:04:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:03,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:04:03,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:03,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:03,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:03,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:04:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:04:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:03,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:03,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:03,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:04:03,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:04:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:04:03,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:04:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:03,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:04:03,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:03,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:04:03,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:03,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:04:03,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:03,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 08:04:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:03,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:04:03,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:03,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:04:03,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:03,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 08:04:03,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:03,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:04:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:03,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:03,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:03,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:04:03,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:03,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:03,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:03,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 08:04:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:03,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:03,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:03,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:03,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:03,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:03,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:03,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:04:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:03,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:04:03,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:03,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:03,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:03,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:04:03,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:03,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 08:04:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:03,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:03,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:03,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 08:04:03,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:03,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:04:03,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:03,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:04:03,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:03,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:03,516 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 08:04:03,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318038033] [2020-09-25 08:04:03,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:04:03,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:04:03,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90453292] [2020-09-25 08:04:03,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:04:03,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:04:03,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:04:03,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:04:03,520 INFO L87 Difference]: Start difference. First operand 347 states and 433 transitions. Second operand 8 states. [2020-09-25 08:04:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:04:04,752 INFO L93 Difference]: Finished difference Result 815 states and 1061 transitions. [2020-09-25 08:04:04,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 08:04:04,757 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-09-25 08:04:04,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:04:04,762 INFO L225 Difference]: With dead ends: 815 [2020-09-25 08:04:04,766 INFO L226 Difference]: Without dead ends: 503 [2020-09-25 08:04:04,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:04:04,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-25 08:04:04,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 338. [2020-09-25 08:04:04,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-09-25 08:04:04,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 418 transitions. [2020-09-25 08:04:04,832 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 418 transitions. Word has length 103 [2020-09-25 08:04:04,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:04:04,834 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 418 transitions. [2020-09-25 08:04:04,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:04:04,834 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 418 transitions. [2020-09-25 08:04:04,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 08:04:04,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:04:04,846 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] [2020-09-25 08:04:04,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:04:04,846 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:04:04,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:04:04,847 INFO L82 PathProgramCache]: Analyzing trace with hash -891577735, now seen corresponding path program 1 times [2020-09-25 08:04:04,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:04:04,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041808646] [2020-09-25 08:04:04,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:04:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:04,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:04,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:05,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:05,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:05,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 08:04:05,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:04:05,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 967 [2020-09-25 08:04:05,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:05,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:05,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:04:05,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:04:05,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 08:04:05,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:05,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:04:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:05,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:05,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:05,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:04:05,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:05,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 08:04:05,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:05,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:05,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:04:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:05,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:04:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:05,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:05,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:05,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:04:05,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:05,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:04:05,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:05,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:05,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:05,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:05,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:04:06,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:06,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 08:04:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:06,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:06,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:06,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:04:06,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:06,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:06,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:06,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:06,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:06,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:06,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:04:06,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:06,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:04:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:06,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:06,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:06,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:06,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:06,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:04:06,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:06,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:06,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:06,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:06,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:04:06,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:06,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:04:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:06,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:06,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:06,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:04:06,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:06,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:04:06,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:06,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:06,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:06,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:06,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:04:06,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:06,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 08:04:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:06,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:06,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:06,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:04:06,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:06,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 08:04:06,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:06,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:06,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:06,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:06,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 08:04:06,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:06,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:04:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:06,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:06,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:06,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:06,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:06,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:06,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:06,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:06,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:06,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:06,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:06,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:06,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 08:04:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:06,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:06,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:06,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:06,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:06,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:04:06,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:06,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:06,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:06,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:06,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:06,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:04:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:06,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:06,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:06,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:04:06,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:06,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:04:06,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:06,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:04:06,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:06,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 08:04:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:06,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:06,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:06,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:06,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:06,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:04:06,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:06,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:06,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:06,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:06,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:04:06,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:06,142 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 08:04:06,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041808646] [2020-09-25 08:04:06,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:04:06,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:04:06,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798428855] [2020-09-25 08:04:06,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:04:06,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:04:06,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:04:06,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:04:06,145 INFO L87 Difference]: Start difference. First operand 338 states and 418 transitions. Second operand 7 states. [2020-09-25 08:04:08,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:04:08,048 INFO L93 Difference]: Finished difference Result 1258 states and 1699 transitions. [2020-09-25 08:04:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:04:08,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-09-25 08:04:08,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:04:08,056 INFO L225 Difference]: With dead ends: 1258 [2020-09-25 08:04:08,057 INFO L226 Difference]: Without dead ends: 955 [2020-09-25 08:04:08,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 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 08:04:08,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-09-25 08:04:08,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 643. [2020-09-25 08:04:08,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-09-25 08:04:08,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 804 transitions. [2020-09-25 08:04:08,121 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 804 transitions. Word has length 107 [2020-09-25 08:04:08,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:04:08,122 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 804 transitions. [2020-09-25 08:04:08,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:04:08,122 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 804 transitions. [2020-09-25 08:04:08,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-25 08:04:08,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:04:08,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:08,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:04:08,127 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:04:08,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:04:08,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1602138582, now seen corresponding path program 1 times [2020-09-25 08:04:08,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:04:08,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409282768] [2020-09-25 08:04:08,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:04:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 08:04:08,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 08:04:08,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:08,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 137 [2020-09-25 08:04:08,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:04:08,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:08,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:04:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:04:08,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:04:08,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:08,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:08,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 08:04:08,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:04:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:04:08,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:04:08,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:08,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:08,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:08,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 08:04:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:04:08,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:04:08,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:08,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:08,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:04:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:08,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:04:08,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:08,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:08,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:08,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:04:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:04:08,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:08,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:08,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:08,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 08:04:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:04:08,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:04:08,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:08,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:08,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:04:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:08,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:04:08,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:08,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:08,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:04:08,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 08:04:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:08,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:04:08,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:08,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:08,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:08,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:04:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:04:08,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:08,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:08,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:08,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 08:04:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:08,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:04:08,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:08,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:08,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:04:08,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 08:04:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:08,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:04:08,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:04:08,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:04:08,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 08:04:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:08,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:08,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:08,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:08,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:08,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:04:08,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:08,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:04:08,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:08,538 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 08:04:08,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409282768] [2020-09-25 08:04:08,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:04:08,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:04:08,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995324884] [2020-09-25 08:04:08,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:04:08,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:04:08,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:04:08,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:04:08,541 INFO L87 Difference]: Start difference. First operand 643 states and 804 transitions. Second operand 8 states. [2020-09-25 08:04:10,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:04:10,826 INFO L93 Difference]: Finished difference Result 2523 states and 3509 transitions. [2020-09-25 08:04:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 08:04:10,827 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2020-09-25 08:04:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:04:10,849 INFO L225 Difference]: With dead ends: 2523 [2020-09-25 08:04:10,849 INFO L226 Difference]: Without dead ends: 1916 [2020-09-25 08:04:10,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 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 08:04:10,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2020-09-25 08:04:11,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1391. [2020-09-25 08:04:11,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1391 states. [2020-09-25 08:04:11,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1814 transitions. [2020-09-25 08:04:11,022 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1814 transitions. Word has length 139 [2020-09-25 08:04:11,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:04:11,024 INFO L479 AbstractCegarLoop]: Abstraction has 1391 states and 1814 transitions. [2020-09-25 08:04:11,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:04:11,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1814 transitions. [2020-09-25 08:04:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 08:04:11,034 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:04:11,034 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:11,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:04:11,035 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:04:11,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:04:11,035 INFO L82 PathProgramCache]: Analyzing trace with hash 407561103, now seen corresponding path program 1 times [2020-09-25 08:04:11,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:04:11,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388276476] [2020-09-25 08:04:11,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:04:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:11,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:11,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:11,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 08:04:12,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:04:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1212 [2020-09-25 08:04:12,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:04:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 08:04:12,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:04:12,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:04:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:04:12,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:04:12,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:04:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:04:12,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:04:12,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 08:04:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:04:12,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:04:12,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:04:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:12,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:04:12,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:04:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:04:12,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:04:12,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 08:04:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:04:12,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:04:12,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:04:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:12,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:04:12,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 08:04:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:12,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:04:12,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:04:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:04:12,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:12,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 08:04:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:12,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:04:12,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 08:04:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:12,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:04:12,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:04:12,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 08:04:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:12,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:04:12,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:04:12,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:04:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:04:12,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:04:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 08:04:12,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 08:04:12,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:04:12,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:04:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 08:04:12,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:04:12,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 08:04:12,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:04:12,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:04:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 08:04:12,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:04:12,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 08:04:12,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:12,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:04:12,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:04:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:12,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:12,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:12,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 08:04:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:12,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:12,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:12,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:12,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:12,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:04:12,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:12,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:12,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:12,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:12,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:04:12,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 08:04:12,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388276476] [2020-09-25 08:04:12,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:04:12,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:04:12,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015487445] [2020-09-25 08:04:12,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:04:12,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:04:12,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:04:12,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:04:12,922 INFO L87 Difference]: Start difference. First operand 1391 states and 1814 transitions. Second operand 10 states. [2020-09-25 08:04:16,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:04:16,089 INFO L93 Difference]: Finished difference Result 2673 states and 3790 transitions. [2020-09-25 08:04:16,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 08:04:16,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-09-25 08:04:16,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:04:16,108 INFO L225 Difference]: With dead ends: 2673 [2020-09-25 08:04:16,108 INFO L226 Difference]: Without dead ends: 1958 [2020-09-25 08:04:16,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2020-09-25 08:04:16,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2020-09-25 08:04:16,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1345. [2020-09-25 08:04:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2020-09-25 08:04:16,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1729 transitions. [2020-09-25 08:04:16,221 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1729 transitions. Word has length 181 [2020-09-25 08:04:16,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:04:16,221 INFO L479 AbstractCegarLoop]: Abstraction has 1345 states and 1729 transitions. [2020-09-25 08:04:16,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:04:16,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1729 transitions. [2020-09-25 08:04:16,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 08:04:16,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:04:16,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:16,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:04:16,229 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:04:16,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:04:16,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1051815898, now seen corresponding path program 1 times [2020-09-25 08:04:16,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:04:16,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953574018] [2020-09-25 08:04:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:04:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:16,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:16,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 08:04:17,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:04:17,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 826 [2020-09-25 08:04:17,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:17,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 08:04:17,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:04:17,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:04:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:04:17,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:04:17,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:04:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:04:17,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:04:17,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 08:04:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:04:17,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:04:17,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:04:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:17,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:04:17,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:04:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:04:17,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:04:17,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 08:04:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:04:17,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:04:17,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:04:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:17,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:04:17,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:04:17,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 08:04:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:17,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:17,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:04:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:04:17,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:17,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 08:04:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:17,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:04:17,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:04:17,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 08:04:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:17,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:04:17,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 08:04:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:17,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:04:17,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:04:17,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:04:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 08:04:17,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:04:17,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 08:04:17,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 08:04:17,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:04:17,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:04:17,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:04:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 08:04:17,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:04:17,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 08:04:17,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:17,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 08:04:17,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:04:17,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:04:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 08:04:17,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:04:17,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 08:04:17,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:17,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:04:17,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:04:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:04:17,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:04:17,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:04:17,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:04:17,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 08:04:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:04:17,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:04:17,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:04:17,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 08:04:17,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:04:17,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:04:17,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:04:17,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:04:17,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:04:17,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:04:17,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:04:17,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:04:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-25 08:04:17,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953574018] [2020-09-25 08:04:17,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:04:17,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:04:17,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763323549] [2020-09-25 08:04:17,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:04:17,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:04:17,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:04:17,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:04:17,835 INFO L87 Difference]: Start difference. First operand 1345 states and 1729 transitions. Second operand 10 states. [2020-09-25 08:04:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:04:19,897 INFO L93 Difference]: Finished difference Result 3608 states and 5003 transitions. [2020-09-25 08:04:19,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 08:04:19,898 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 182 [2020-09-25 08:04:19,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:04:19,916 INFO L225 Difference]: With dead ends: 3608 [2020-09-25 08:04:19,916 INFO L226 Difference]: Without dead ends: 2304 [2020-09-25 08:04:19,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-09-25 08:04:19,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2020-09-25 08:04:20,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 1701. [2020-09-25 08:04:20,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1701 states. [2020-09-25 08:04:20,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2137 transitions. [2020-09-25 08:04:20,053 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2137 transitions. Word has length 182 [2020-09-25 08:04:20,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:04:20,053 INFO L479 AbstractCegarLoop]: Abstraction has 1701 states and 2137 transitions. [2020-09-25 08:04:20,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:04:20,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2137 transitions. [2020-09-25 08:04:20,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 08:04:20,059 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:04:20,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:20,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:04:20,060 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:04:20,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:04:20,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1421271293, now seen corresponding path program 1 times [2020-09-25 08:04:20,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:04:20,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573665548] [2020-09-25 08:04:20,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:04:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:04:20,088 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:04:20,088 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:04:20,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:04:20,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:04:20 BoogieIcfgContainer [2020-09-25 08:04:20,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:04:20,130 INFO L168 Benchmark]: Toolchain (without parser) took 26030.40 ms. Allocated memory was 145.8 MB in the beginning and 424.7 MB in the end (delta: 278.9 MB). Free memory was 102.2 MB in the beginning and 117.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 263.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:04:20,131 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:04:20,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.25 ms. Allocated memory is still 145.8 MB. Free memory was 101.5 MB in the beginning and 88.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-25 08:04:20,133 INFO L168 Benchmark]: Boogie Preprocessor took 147.04 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 88.0 MB in the beginning and 178.5 MB in the end (delta: -90.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-25 08:04:20,133 INFO L168 Benchmark]: RCFGBuilder took 650.44 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 143.7 MB in the end (delta: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:04:20,134 INFO L168 Benchmark]: TraceAbstraction took 24800.24 ms. Allocated memory was 201.3 MB in the beginning and 424.7 MB in the end (delta: 223.3 MB). Free memory was 143.7 MB in the beginning and 117.9 MB in the end (delta: 25.8 MB). Peak memory consumption was 249.1 MB. Max. memory is 7.1 GB. [2020-09-25 08:04:20,138 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 419.25 ms. Allocated memory is still 145.8 MB. Free memory was 101.5 MB in the beginning and 88.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.04 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 88.0 MB in the beginning and 178.5 MB in the end (delta: -90.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 650.44 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 143.7 MB in the end (delta: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24800.24 ms. Allocated memory was 201.3 MB in the beginning and 424.7 MB in the end (delta: 223.3 MB). Free memory was 143.7 MB in the beginning and 117.9 MB in the end (delta: 25.8 MB). Peak memory consumption was 249.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int m_st ; [L18] int t1_st ; [L19] int m_i ; [L20] int t1_i ; [L21] int M_E = 2; [L22] int T1_E = 2; [L23] int E_1 = 2; [L439] int __retres1 ; [L443] CALL init_model() [L354] m_i = 1 [L355] t1_i = 1 [L443] RET init_model() [L444] CALL start_simulation() [L380] int kernel_st ; [L381] int tmp ; [L382] int tmp___0 ; [L386] kernel_st = 0 [L387] FCALL update_channels() [L388] CALL init_threads() [L151] COND TRUE m_i == 1 [L152] m_st = 0 [L156] COND TRUE t1_i == 1 [L157] t1_st = 0 [L388] RET init_threads() [L389] CALL fire_delta_events() [L240] COND FALSE !(M_E == 0) [L245] COND FALSE !(T1_E == 0) [L250] COND FALSE !(E_1 == 0) [L389] RET fire_delta_events() [L390] CALL activate_threads() [L283] int tmp ; [L284] int tmp___0 ; [L288] CALL, EXPR is_master_triggered() [L102] int __retres1 ; [L105] COND FALSE !(m_pc == 1) [L115] __retres1 = 0 [L117] return (__retres1); [L288] RET, EXPR is_master_triggered() [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) [L296] CALL, EXPR is_transmit1_triggered() [L121] int __retres1 ; [L124] COND FALSE !(t1_pc == 1) [L134] __retres1 = 0 [L136] return (__retres1); [L296] RET, EXPR is_transmit1_triggered() [L296] tmp___0 = is_transmit1_triggered() [L298] COND FALSE !(\read(tmp___0)) [L390] RET activate_threads() [L391] CALL reset_delta_events() [L263] COND FALSE !(M_E == 1) [L268] COND FALSE !(T1_E == 1) [L273] COND FALSE !(E_1 == 1) [L391] RET reset_delta_events() [L394] COND TRUE 1 [L397] kernel_st = 1 [L398] CALL eval() [L187] int tmp ; [L191] COND TRUE 1 [L194] CALL, EXPR exists_runnable_thread() [L166] int __retres1 ; [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 [L182] return (__retres1); [L194] RET, EXPR exists_runnable_thread() [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp_ndt_1)) [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 [L221] CALL transmit1() [L72] COND TRUE t1_pc == 0 [L83] COND TRUE 1 [L85] t1_pc = 1 [L86] t1_st = 2 [L221] RET transmit1() [L191] COND TRUE 1 [L194] CALL, EXPR exists_runnable_thread() [L166] int __retres1 ; [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 [L182] return (__retres1); [L194] RET, EXPR exists_runnable_thread() [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp_ndt_1) [L206] m_st = 1 [L207] CALL master() [L31] COND TRUE m_pc == 0 [L42] COND TRUE 1 [L45] E_1 = 1 [L46] CALL immediate_notify() [L312] CALL activate_threads() [L283] int tmp ; [L284] int tmp___0 ; [L288] CALL, EXPR is_master_triggered() [L102] int __retres1 ; [L105] COND FALSE !(m_pc == 1) [L115] __retres1 = 0 [L117] return (__retres1); [L288] RET, EXPR is_master_triggered() [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) [L296] CALL, EXPR is_transmit1_triggered() [L121] int __retres1 ; [L124] COND TRUE t1_pc == 1 [L125] COND TRUE E_1 == 1 [L126] __retres1 = 1 [L136] return (__retres1); [L296] RET, EXPR is_transmit1_triggered() [L296] tmp___0 = is_transmit1_triggered() [L298] COND TRUE \read(tmp___0) [L299] t1_st = 0 [L312] RET activate_threads() [L46] RET immediate_notify() [L47] E_1 = 2 [L50] COND TRUE 1 [L52] m_pc = 1 [L53] m_st = 2 [L207] RET master() [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 [L221] CALL transmit1() [L72] COND FALSE !(t1_pc == 0) [L75] COND TRUE t1_pc == 1 [L91] CALL error() [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.6s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1430 SDtfs, 5277 SDslu, 273 SDs, 0 SdLazy, 6498 SolverSat, 1876 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1701occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 2387 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 996 NumberOfCodeBlocks, 996 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 808 ConstructedInterpolants, 0 QuantifiedInterpolants, 222113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 133/133 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...