/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 10:19:12,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 10:19:12,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 10:19:12,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 10:19:12,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 10:19:12,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 10:19:12,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 10:19:12,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 10:19:12,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 10:19:12,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 10:19:12,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 10:19:12,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 10:19:12,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 10:19:12,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 10:19:12,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 10:19:12,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 10:19:12,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 10:19:12,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 10:19:12,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 10:19:12,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 10:19:12,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 10:19:12,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 10:19:12,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 10:19:12,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 10:19:12,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 10:19:12,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 10:19:12,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 10:19:12,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 10:19:12,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 10:19:12,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 10:19:12,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 10:19:12,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 10:19:12,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 10:19:12,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 10:19:12,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 10:19:12,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 10:19:12,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 10:19:12,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 10:19:12,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 10:19:12,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 10:19:12,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 10:19:12,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 10:19:12,636 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 10:19:12,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 10:19:12,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 10:19:12,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 10:19:12,638 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 10:19:12,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 10:19:12,638 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 10:19:12,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 10:19:12,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 10:19:12,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 10:19:12,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 10:19:12,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 10:19:12,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 10:19:12,640 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 10:19:12,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 10:19:12,640 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 10:19:12,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 10:19:12,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 10:19:12,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 10:19:12,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 10:19:12,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 10:19:12,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 10:19:12,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 10:19:12,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 10:19:12,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 10:19:12,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 10:19:12,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 10:19:12,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 10:19:12,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 10:19:12,643 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 10:19:12,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 10:19:13,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 10:19:13,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 10:19:13,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 10:19:13,011 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 10:19:13,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-10-14 10:19:13,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aaa2e59ae/b7015d74eb804b958bfefa0ef166dc5e/FLAGf36d1be6b [2020-10-14 10:19:13,563 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 10:19:13,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-10-14 10:19:13,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aaa2e59ae/b7015d74eb804b958bfefa0ef166dc5e/FLAGf36d1be6b [2020-10-14 10:19:13,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aaa2e59ae/b7015d74eb804b958bfefa0ef166dc5e [2020-10-14 10:19:13,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 10:19:13,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 10:19:13,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 10:19:13,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 10:19:13,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 10:19:13,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:13" (1/1) ... [2020-10-14 10:19:13,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adf6174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:13, skipping insertion in model container [2020-10-14 10:19:13,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:13" (1/1) ... [2020-10-14 10:19:13,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 10:19:13,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 10:19:14,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 10:19:14,198 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 10:19:14,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 10:19:14,348 INFO L208 MainTranslator]: Completed translation [2020-10-14 10:19:14,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:14 WrapperNode [2020-10-14 10:19:14,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 10:19:14,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 10:19:14,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 10:19:14,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 10:19:14,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:14" (1/1) ... [2020-10-14 10:19:14,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:14" (1/1) ... [2020-10-14 10:19:14,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:14" (1/1) ... [2020-10-14 10:19:14,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:14" (1/1) ... [2020-10-14 10:19:14,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:14" (1/1) ... [2020-10-14 10:19:14,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:14" (1/1) ... [2020-10-14 10:19:14,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:14" (1/1) ... [2020-10-14 10:19:14,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 10:19:14,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 10:19:14,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 10:19:14,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 10:19:14,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 10:19:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 10:19:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 10:19:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-14 10:19:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-10-14 10:19:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-10-14 10:19:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-10-14 10:19:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-10-14 10:19:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-14 10:19:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-14 10:19:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-14 10:19:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-14 10:19:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-14 10:19:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-14 10:19:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-14 10:19:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-14 10:19:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-14 10:19:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-14 10:19:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-14 10:19:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-14 10:19:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-14 10:19:14,470 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 10:19:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 10:19:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 10:19:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-14 10:19:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-10-14 10:19:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-10-14 10:19:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-14 10:19:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-10-14 10:19:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-10-14 10:19:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-14 10:19:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-14 10:19:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-14 10:19:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-14 10:19:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-14 10:19:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-14 10:19:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-14 10:19:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-14 10:19:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-14 10:19:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-14 10:19:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-14 10:19:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-14 10:19:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 10:19:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 10:19:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 10:19:14,957 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 10:19:14,957 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 10:19:14,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:14 BoogieIcfgContainer [2020-10-14 10:19:14,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 10:19:14,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 10:19:14,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 10:19:14,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 10:19:14,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:19:13" (1/3) ... [2020-10-14 10:19:14,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680b5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:14, skipping insertion in model container [2020-10-14 10:19:14,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:14" (2/3) ... [2020-10-14 10:19:14,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680b5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:14, skipping insertion in model container [2020-10-14 10:19:14,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:14" (3/3) ... [2020-10-14 10:19:14,973 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-10-14 10:19:14,985 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 10:19:14,993 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 10:19:15,008 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 10:19:15,034 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 10:19:15,035 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 10:19:15,035 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 10:19:15,035 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 10:19:15,036 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 10:19:15,036 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 10:19:15,036 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 10:19:15,036 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 10:19:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-10-14 10:19:15,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-14 10:19:15,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:19:15,071 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] [2020-10-14 10:19:15,072 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:19:15,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:19:15,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1024647557, now seen corresponding path program 1 times [2020-10-14 10:19:15,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:19:15,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471817295] [2020-10-14 10:19:15,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:19:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:15,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:15,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:15,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:15,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:15,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:16,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:16,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:16,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:16,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:16,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 10:19:20,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 10:19:20,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 10:19:20,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 10:19:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:19:20,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 10:19:20,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:19:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:20,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:20,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:20,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 10:19:20,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 10:19:20,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:19:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:20,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:20,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:20,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:19:20,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:20,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 10:19:20,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 10:19:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:20,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:19:20,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:20,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:20,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:20,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:20,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:20,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:20,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 10:19:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:20,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:19:20,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:20,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:19:20,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:20,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:20,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 10:19:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:20,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:20,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:20,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:19:20,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:20,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:20,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 10:19:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:20,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:19:20,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:20,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:19:20,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:20,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:20,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:19:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:20,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:20,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:20,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:20,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:20,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:19:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:20,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:20,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:20,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:20,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:20,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:20,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 10:19:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:20,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:20,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:20,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:20,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:20,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:20,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:20,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:20,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 10:19:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:20,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:20,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:20,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:20,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:20,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:19:20,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:20,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 10:19:20,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:19:20,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471817295] [2020-10-14 10:19:20,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:19:20,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 10:19:20,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061023433] [2020-10-14 10:19:20,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 10:19:20,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:19:20,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 10:19:20,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 10:19:20,643 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 7 states. [2020-10-14 10:19:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:19:22,433 INFO L93 Difference]: Finished difference Result 493 states and 769 transitions. [2020-10-14 10:19:22,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 10:19:22,435 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2020-10-14 10:19:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:19:22,455 INFO L225 Difference]: With dead ends: 493 [2020-10-14 10:19:22,455 INFO L226 Difference]: Without dead ends: 351 [2020-10-14 10:19:22,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-10-14 10:19:22,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-14 10:19:22,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 240. [2020-10-14 10:19:22,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-10-14 10:19:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 326 transitions. [2020-10-14 10:19:22,579 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 326 transitions. Word has length 75 [2020-10-14 10:19:22,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:19:22,583 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 326 transitions. [2020-10-14 10:19:22,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 10:19:22,583 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 326 transitions. [2020-10-14 10:19:22,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 10:19:22,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:19:22,592 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] [2020-10-14 10:19:22,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 10:19:22,593 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:19:22,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:19:22,594 INFO L82 PathProgramCache]: Analyzing trace with hash 106614370, now seen corresponding path program 1 times [2020-10-14 10:19:22,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:19:22,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833904668] [2020-10-14 10:19:22,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:19:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:22,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:22,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:22,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:22,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:22,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:22,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:22,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:23,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:24,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:25,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 10:19:27,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 10:19:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4701 [2020-10-14 10:19:27,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:19:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-14 10:19:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 10:19:27,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:27,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:19:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:27,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:27,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:27,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:19:27,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:27,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:27,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:19:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:27,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:27,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:27,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:27,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:27,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:27,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 10:19:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:27,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:19:27,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:19:27,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:27,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:27,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:27,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:27,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 10:19:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:27,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:19:27,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:27,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:27,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:27,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:27,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:27,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:27,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 10:19:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:27,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:27,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:27,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:19:27,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 10:19:27,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:27,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 10:19:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:27,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:19:27,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:19:27,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 10:19:27,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:27,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:27,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 10:19:27,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:27,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:19:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:27,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:27,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:27,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:27,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:27,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:27,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:27,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:27,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:19:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:27,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:27,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:27,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:27,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:27,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 10:19:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:27,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 10:19:27,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:19:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 10:19:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 10:19:27,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:27,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 10:19:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:27,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:27,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:27,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:27,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:27,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:27,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:27,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:19:27,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:27,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:27,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:19:27,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833904668] [2020-10-14 10:19:27,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:19:27,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 10:19:27,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322730203] [2020-10-14 10:19:27,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 10:19:27,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:19:27,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 10:19:27,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 10:19:27,534 INFO L87 Difference]: Start difference. First operand 240 states and 326 transitions. Second operand 8 states. [2020-10-14 10:19:30,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:19:30,088 INFO L93 Difference]: Finished difference Result 1000 states and 1596 transitions. [2020-10-14 10:19:30,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 10:19:30,088 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-10-14 10:19:30,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:19:30,111 INFO L225 Difference]: With dead ends: 1000 [2020-10-14 10:19:30,111 INFO L226 Difference]: Without dead ends: 785 [2020-10-14 10:19:30,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-10-14 10:19:30,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2020-10-14 10:19:30,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 631. [2020-10-14 10:19:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2020-10-14 10:19:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 917 transitions. [2020-10-14 10:19:30,258 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 917 transitions. Word has length 76 [2020-10-14 10:19:30,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:19:30,259 INFO L479 AbstractCegarLoop]: Abstraction has 631 states and 917 transitions. [2020-10-14 10:19:30,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 10:19:30,259 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 917 transitions. [2020-10-14 10:19:30,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 10:19:30,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:19:30,266 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] [2020-10-14 10:19:30,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 10:19:30,266 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:19:30,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:19:30,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1816613664, now seen corresponding path program 1 times [2020-10-14 10:19:30,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:19:30,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336638902] [2020-10-14 10:19:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:19:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:30,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:30,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:30,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:30,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:30,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:30,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:30,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:31,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 10:19:32,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:19:32,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2326 [2020-10-14 10:19:32,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 10:19:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 10:19:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 10:19:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:32,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:19:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:32,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:32,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:32,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:19:32,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:32,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:32,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 10:19:32,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:32,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:19:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:32,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:32,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:32,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 10:19:32,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:19:32,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 10:19:32,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 10:19:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:32,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:19:32,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:32,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:32,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:32,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:32,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:19:32,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:32,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 10:19:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:32,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:19:32,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:32,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:32,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:19:32,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:32,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 10:19:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:32,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:32,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:32,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 10:19:32,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:19:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 10:19:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 10:19:32,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:32,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 10:19:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:32,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:19:32,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 10:19:32,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 10:19:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 10:19:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:32,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:19:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:32,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:32,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:32,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:32,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:32,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:19:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:32,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:32,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:32,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:19:32,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:32,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:19:32,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:32,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 10:19:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:32,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:32,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:32,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:32,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:19:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:32,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:32,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 10:19:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:32,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:32,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:32,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:32,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:32,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:32,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:32,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:19:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:32,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:19:32,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336638902] [2020-10-14 10:19:32,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:19:32,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 10:19:32,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648668613] [2020-10-14 10:19:32,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 10:19:32,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:19:32,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 10:19:32,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 10:19:32,937 INFO L87 Difference]: Start difference. First operand 631 states and 917 transitions. Second operand 9 states. [2020-10-14 10:19:34,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:19:34,184 INFO L93 Difference]: Finished difference Result 1460 states and 2278 transitions. [2020-10-14 10:19:34,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 10:19:34,185 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2020-10-14 10:19:34,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:19:34,192 INFO L225 Difference]: With dead ends: 1460 [2020-10-14 10:19:34,192 INFO L226 Difference]: Without dead ends: 854 [2020-10-14 10:19:34,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 10:19:34,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-10-14 10:19:34,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 700. [2020-10-14 10:19:34,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2020-10-14 10:19:34,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 970 transitions. [2020-10-14 10:19:34,273 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 970 transitions. Word has length 76 [2020-10-14 10:19:34,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:19:34,274 INFO L479 AbstractCegarLoop]: Abstraction has 700 states and 970 transitions. [2020-10-14 10:19:34,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 10:19:34,274 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 970 transitions. [2020-10-14 10:19:34,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 10:19:34,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:19:34,278 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] [2020-10-14 10:19:34,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 10:19:34,279 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:19:34,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:19:34,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1711999331, now seen corresponding path program 1 times [2020-10-14 10:19:34,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:19:34,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056242826] [2020-10-14 10:19:34,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:19:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:34,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:34,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:34,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:34,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:34,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:35,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:35,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:35,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 10:19:38,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:19:38,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4404 [2020-10-14 10:19:38,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 10:19:38,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 10:19:38,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 10:19:38,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:38,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:19:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:38,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:38,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:38,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:19:38,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:38,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:38,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 10:19:38,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:38,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:19:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:38,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:38,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:38,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:38,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:38,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:38,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:19:38,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:38,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 10:19:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:38,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:19:38,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:38,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:38,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:38,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:38,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:19:38,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:38,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 10:19:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:38,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:19:38,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:38,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:38,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:19:38,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:38,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 10:19:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:38,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:38,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:38,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:38,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:19:38,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:38,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 10:19:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:38,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:19:38,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:19:38,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 10:19:38,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:19:38,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 10:19:38,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:38,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:19:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:38,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:38,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:38,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:38,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:38,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:38,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 10:19:38,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:38,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:19:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:38,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:38,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:38,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:38,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 10:19:38,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:19:38,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 10:19:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:38,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:38,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:38,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:38,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:19:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:38,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:38,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 10:19:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:38,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:38,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:38,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:38,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:38,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:38,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:38,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:19:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:38,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:38,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:19:38,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056242826] [2020-10-14 10:19:38,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:19:38,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 10:19:38,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966131903] [2020-10-14 10:19:38,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 10:19:38,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:19:38,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 10:19:38,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 10:19:38,884 INFO L87 Difference]: Start difference. First operand 700 states and 970 transitions. Second operand 8 states. [2020-10-14 10:19:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:19:40,380 INFO L93 Difference]: Finished difference Result 1930 states and 2687 transitions. [2020-10-14 10:19:40,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 10:19:40,380 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-10-14 10:19:40,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:19:40,390 INFO L225 Difference]: With dead ends: 1930 [2020-10-14 10:19:40,390 INFO L226 Difference]: Without dead ends: 1261 [2020-10-14 10:19:40,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-10-14 10:19:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2020-10-14 10:19:40,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1051. [2020-10-14 10:19:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2020-10-14 10:19:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1389 transitions. [2020-10-14 10:19:40,485 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1389 transitions. Word has length 76 [2020-10-14 10:19:40,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:19:40,485 INFO L479 AbstractCegarLoop]: Abstraction has 1051 states and 1389 transitions. [2020-10-14 10:19:40,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 10:19:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1389 transitions. [2020-10-14 10:19:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 10:19:40,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:19:40,488 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] [2020-10-14 10:19:40,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 10:19:40,488 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:19:40,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:19:40,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1858809854, now seen corresponding path program 1 times [2020-10-14 10:19:40,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:19:40,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151147921] [2020-10-14 10:19:40,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:19:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:40,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:40,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:40,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:40,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:42,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:42,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:42,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 10:19:45,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 10:19:45,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 10:19:45,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 10:19:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-14 10:19:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 10:19:45,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:19:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:45,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:45,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:45,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:45,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:19:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:45,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:45,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:45,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:45,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 10:19:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:45,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:19:45,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:45,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:19:45,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:45,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:45,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:45,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 10:19:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:45,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:19:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 10:19:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:45,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:45,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:45,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:45,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:45,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:45,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:45,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 10:19:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:45,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:19:45,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:19:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 10:19:45,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 10:19:45,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:19:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:45,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:45,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:45,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:45,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:45,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:45,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:19:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:45,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:45,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:45,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:45,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 10:19:45,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 10:19:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:45,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:45,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:45,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:45,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:45,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:19:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 10:19:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:45,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:45,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:45,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:45,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:45,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:45,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:45,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:45,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:45,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:19:45,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:45,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:19:45,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151147921] [2020-10-14 10:19:45,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:19:45,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 10:19:45,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132429837] [2020-10-14 10:19:45,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 10:19:45,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:19:45,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 10:19:45,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 10:19:45,739 INFO L87 Difference]: Start difference. First operand 1051 states and 1389 transitions. Second operand 7 states. [2020-10-14 10:19:47,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:19:47,253 INFO L93 Difference]: Finished difference Result 3287 states and 4691 transitions. [2020-10-14 10:19:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 10:19:47,253 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-14 10:19:47,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:19:47,273 INFO L225 Difference]: With dead ends: 3287 [2020-10-14 10:19:47,273 INFO L226 Difference]: Without dead ends: 2265 [2020-10-14 10:19:47,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-14 10:19:47,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2020-10-14 10:19:47,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2051. [2020-10-14 10:19:47,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2051 states. [2020-10-14 10:19:47,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 2844 transitions. [2020-10-14 10:19:47,446 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 2844 transitions. Word has length 76 [2020-10-14 10:19:47,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:19:47,449 INFO L479 AbstractCegarLoop]: Abstraction has 2051 states and 2844 transitions. [2020-10-14 10:19:47,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 10:19:47,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 2844 transitions. [2020-10-14 10:19:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 10:19:47,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:19:47,454 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 10:19:47,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 10:19:47,454 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:19:47,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:19:47,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1820610178, now seen corresponding path program 1 times [2020-10-14 10:19:47,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:19:47,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42941660] [2020-10-14 10:19:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:19:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:47,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:47,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:47,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:47,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:47,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:47,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:48,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:50,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:50,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 10:19:52,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 10:19:52,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 10:19:52,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-14 10:19:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 10:19:52,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:19:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:52,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:52,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:52,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:19:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:19:52,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:52,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:52,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:52,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 10:19:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:19:52,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:19:52,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:52,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 10:19:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:19:52,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:19:52,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 10:19:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:52,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:52,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:52,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:52,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 10:19:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:19:52,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:19:52,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 10:19:52,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:52,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:19:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:52,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:52,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:52,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:19:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:19:52,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:52,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:52,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:52,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 10:19:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:52,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:52,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:52,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:52,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 10:19:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:52,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:19:52,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:19:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:19:52,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 10:19:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:52,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:19:52,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:52,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:19:52,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 10:19:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:52,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:52,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:19:52,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:19:52,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:19:52,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:19:52,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:19:52,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:19:52,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:19:52,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:19:52,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:19:52,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:19:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 10:19:52,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42941660] [2020-10-14 10:19:52,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:19:52,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 10:19:52,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994588967] [2020-10-14 10:19:52,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 10:19:52,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:19:52,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 10:19:52,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 10:19:52,626 INFO L87 Difference]: Start difference. First operand 2051 states and 2844 transitions. Second operand 8 states. [2020-10-14 10:19:54,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:19:54,846 INFO L93 Difference]: Finished difference Result 6670 states and 10221 transitions. [2020-10-14 10:19:54,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 10:19:54,847 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2020-10-14 10:19:54,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:19:54,885 INFO L225 Difference]: With dead ends: 6670 [2020-10-14 10:19:54,885 INFO L226 Difference]: Without dead ends: 4654 [2020-10-14 10:19:54,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-14 10:19:54,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4654 states. [2020-10-14 10:19:55,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4654 to 4248. [2020-10-14 10:19:55,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4248 states. [2020-10-14 10:19:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4248 states to 4248 states and 6455 transitions. [2020-10-14 10:19:55,299 INFO L78 Accepts]: Start accepts. Automaton has 4248 states and 6455 transitions. Word has length 95 [2020-10-14 10:19:55,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:19:55,300 INFO L479 AbstractCegarLoop]: Abstraction has 4248 states and 6455 transitions. [2020-10-14 10:19:55,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 10:19:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 4248 states and 6455 transitions. [2020-10-14 10:19:55,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 10:19:55,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:19:55,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:19:55,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 10:19:55,311 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:19:55,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:19:55,312 INFO L82 PathProgramCache]: Analyzing trace with hash -398538727, now seen corresponding path program 1 times [2020-10-14 10:19:55,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:19:55,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044719686] [2020-10-14 10:19:55,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:19:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:19:55,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:55,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:55,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:55,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:19:55,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 10:20:00,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 10:20:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 10:20:00,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:20:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 10:20:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:20:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:00,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:20:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:20:00,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:00,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:00,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:20:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:20:00,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:00,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:00,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 10:20:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:20:00,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:20:00,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:00,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 10:20:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:20:00,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:00,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:00,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 10:20:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:00,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:00,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 10:20:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:20:00,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:20:00,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 10:20:00,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:20:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:00,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:00,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:20:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:00,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:00,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 10:20:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:00,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:00,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 10:20:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:00,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:00,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:00,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 10:20:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:00,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:00,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 10:20:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:00,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:00,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 10:20:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 10:20:00,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 10:20:00,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:20:00,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 10:20:00,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:20:00,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:00,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 10:20:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 10:20:00,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 10:20:00,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:20:00,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 10:20:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:20:00,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:20:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:20:00,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 10:20:00,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:20:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 10:20:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:20:00,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:20:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:00,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:20:00,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:20:00,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:00,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:20:00,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:20:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:00,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:00,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:00,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:00,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:00,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:20:00,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:00,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:00,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:00,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 10:20:00,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:00,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-14 10:20:00,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044719686] [2020-10-14 10:20:00,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:20:00,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 10:20:00,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485904579] [2020-10-14 10:20:00,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 10:20:00,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:20:00,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 10:20:00,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-14 10:20:00,791 INFO L87 Difference]: Start difference. First operand 4248 states and 6455 transitions. Second operand 12 states. [2020-10-14 10:20:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:20:02,599 INFO L93 Difference]: Finished difference Result 7823 states and 12831 transitions. [2020-10-14 10:20:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 10:20:02,600 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 129 [2020-10-14 10:20:02,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:20:02,635 INFO L225 Difference]: With dead ends: 7823 [2020-10-14 10:20:02,635 INFO L226 Difference]: Without dead ends: 4426 [2020-10-14 10:20:02,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 10:20:02,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2020-10-14 10:20:03,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4244. [2020-10-14 10:20:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4244 states. [2020-10-14 10:20:03,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4244 states to 4244 states and 6333 transitions. [2020-10-14 10:20:03,041 INFO L78 Accepts]: Start accepts. Automaton has 4244 states and 6333 transitions. Word has length 129 [2020-10-14 10:20:03,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:20:03,042 INFO L479 AbstractCegarLoop]: Abstraction has 4244 states and 6333 transitions. [2020-10-14 10:20:03,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 10:20:03,042 INFO L276 IsEmpty]: Start isEmpty. Operand 4244 states and 6333 transitions. [2020-10-14 10:20:03,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 10:20:03,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:20:03,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:20:03,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 10:20:03,052 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:20:03,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:20:03,053 INFO L82 PathProgramCache]: Analyzing trace with hash 507136859, now seen corresponding path program 1 times [2020-10-14 10:20:03,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:20:03,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356657481] [2020-10-14 10:20:03,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:20:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:03,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:03,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:03,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:03,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:03,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:03,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:03,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:03,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 10:20:08,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:20:08,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 10:20:08,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:20:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 10:20:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 10:20:08,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:08,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:20:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:20:08,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:20:08,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:08,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:20:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:20:08,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:08,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:20:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 10:20:08,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:08,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 10:20:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:20:08,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:08,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:20:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:20:08,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:08,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 10:20:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:20:08,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:08,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:20:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 10:20:08,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:20:08,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:08,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 10:20:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:08,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:08,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:08,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 10:20:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:20:08,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:20:08,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 10:20:08,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 10:20:08,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:08,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:20:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:08,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:08,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:20:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:08,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:08,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 10:20:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:08,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:20:08,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 10:20:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:08,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:08,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:08,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 10:20:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:08,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:20:08,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 10:20:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:08,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:08,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:08,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 10:20:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 10:20:08,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 10:20:08,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 10:20:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 10:20:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 10:20:08,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:20:08,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:08,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:20:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:20:08,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:20:08,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:20:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:08,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:08,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:20:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:08,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:08,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:08,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:08,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:08,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:08,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:08,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:08,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:08,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:08,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-14 10:20:08,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356657481] [2020-10-14 10:20:08,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:20:08,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 10:20:08,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964833444] [2020-10-14 10:20:08,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 10:20:08,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:20:08,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 10:20:08,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 10:20:08,351 INFO L87 Difference]: Start difference. First operand 4244 states and 6333 transitions. Second operand 10 states. [2020-10-14 10:20:09,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:20:09,940 INFO L93 Difference]: Finished difference Result 7799 states and 11561 transitions. [2020-10-14 10:20:09,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 10:20:09,940 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2020-10-14 10:20:09,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:20:09,966 INFO L225 Difference]: With dead ends: 7799 [2020-10-14 10:20:09,966 INFO L226 Difference]: Without dead ends: 3589 [2020-10-14 10:20:09,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-14 10:20:09,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2020-10-14 10:20:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 3421. [2020-10-14 10:20:10,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3421 states. [2020-10-14 10:20:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 5064 transitions. [2020-10-14 10:20:10,245 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 5064 transitions. Word has length 129 [2020-10-14 10:20:10,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:20:10,246 INFO L479 AbstractCegarLoop]: Abstraction has 3421 states and 5064 transitions. [2020-10-14 10:20:10,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 10:20:10,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 5064 transitions. [2020-10-14 10:20:10,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 10:20:10,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:20:10,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:20:10,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 10:20:10,262 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:20:10,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:20:10,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1220008103, now seen corresponding path program 1 times [2020-10-14 10:20:10,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:20:10,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326298944] [2020-10-14 10:20:10,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:20:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:10,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:10,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:10,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:10,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:10,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 10:20:10,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:20:10,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 663 [2020-10-14 10:20:10,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:10,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:20:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-14 10:20:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:20:10,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:10,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:20:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:10,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:10,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:10,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:20:10,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:10,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:10,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:10,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:10,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:10,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:20:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:10,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:10,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:10,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:20:10,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:10,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:10,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:10,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:10,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:10,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:10,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:10,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:10,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 10:20:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:10,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:10,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:10,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:20:10,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:20:10,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:10,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:10,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:10,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 10:20:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:10,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:10,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:10,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:20:10,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:10,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:10,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:10,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:11,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 10:20:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:11,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:11,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:11,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:11,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 10:20:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:20:11,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:20:11,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 10:20:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 10:20:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:20:11,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:11,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:20:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:11,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:11,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:11,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:11,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:20:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:11,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 10:20:11,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:20:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 10:20:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:11,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 10:20:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:11,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:20:11,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:11,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:11,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 10:20:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:11,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:11,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:11,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 10:20:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:11,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:20:11,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:11,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:11,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 10:20:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:11,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:11,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:11,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 10:20:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 10:20:11,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 10:20:11,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 10:20:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:11,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 10:20:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 10:20:11,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:20:11,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:11,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:11,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:20:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:20:11,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:20:11,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:11,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:20:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:11,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:11,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:11,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:20:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:11,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:11,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:11,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:11,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:11,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:11,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:11,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:11,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:11,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:11,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:11,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:11,268 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-14 10:20:11,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326298944] [2020-10-14 10:20:11,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:20:11,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 10:20:11,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719262209] [2020-10-14 10:20:11,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 10:20:11,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:20:11,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 10:20:11,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-14 10:20:11,276 INFO L87 Difference]: Start difference. First operand 3421 states and 5064 transitions. Second operand 12 states. [2020-10-14 10:20:12,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:20:12,845 INFO L93 Difference]: Finished difference Result 6696 states and 10189 transitions. [2020-10-14 10:20:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 10:20:12,845 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 129 [2020-10-14 10:20:12,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:20:12,863 INFO L225 Difference]: With dead ends: 6696 [2020-10-14 10:20:12,863 INFO L226 Difference]: Without dead ends: 2480 [2020-10-14 10:20:12,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2020-10-14 10:20:12,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2020-10-14 10:20:13,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2335. [2020-10-14 10:20:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2020-10-14 10:20:13,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3196 transitions. [2020-10-14 10:20:13,049 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3196 transitions. Word has length 129 [2020-10-14 10:20:13,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:20:13,050 INFO L479 AbstractCegarLoop]: Abstraction has 2335 states and 3196 transitions. [2020-10-14 10:20:13,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 10:20:13,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3196 transitions. [2020-10-14 10:20:13,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 10:20:13,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:20:13,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:20:13,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 10:20:13,054 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:20:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:20:13,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1195828247, now seen corresponding path program 1 times [2020-10-14 10:20:13,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:20:13,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241533352] [2020-10-14 10:20:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:20:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 10:20:13,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:20:13,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 10:20:13,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 10:20:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 10:20:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 10:20:13,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:20:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:20:13,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:20:13,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:20:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 10:20:13,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 10:20:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:20:13,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:13,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:20:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 10:20:13,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 10:20:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:20:13,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:13,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:20:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 10:20:13,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 10:20:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 10:20:13,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:13,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:20:13,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:13,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 10:20:13,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 10:20:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:13,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:20:13,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:20:13,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 10:20:13,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 10:20:13,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 10:20:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:20:13,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:20:13,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 10:20:13,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:20:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:13,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:13,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:20:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:13,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:20:13,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:13,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 10:20:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:13,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:13,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:13,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 10:20:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:13,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:13,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:13,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:20:13,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 10:20:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:13,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:13,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:13,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 10:20:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 10:20:13,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:13,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 10:20:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 10:20:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 10:20:13,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:20:13,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 10:20:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 10:20:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 10:20:13,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:13,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:13,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:20:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 10:20:13,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:20:13,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:13,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 10:20:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:13,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:20:13,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 10:20:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:20:13,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:20:13,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:20:13,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 10:20:13,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:20:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:20:13,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:20:13,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:20:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:20:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:20:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:20:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:20:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-14 10:20:13,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241533352] [2020-10-14 10:20:13,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:20:13,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 10:20:13,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251251549] [2020-10-14 10:20:13,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 10:20:13,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:20:13,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 10:20:13,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-14 10:20:13,478 INFO L87 Difference]: Start difference. First operand 2335 states and 3196 transitions. Second operand 12 states. [2020-10-14 10:20:16,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:20:16,061 INFO L93 Difference]: Finished difference Result 5896 states and 8693 transitions. [2020-10-14 10:20:16,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 10:20:16,062 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 129 [2020-10-14 10:20:16,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:20:16,085 INFO L225 Difference]: With dead ends: 5896 [2020-10-14 10:20:16,085 INFO L226 Difference]: Without dead ends: 3801 [2020-10-14 10:20:16,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=211, Invalid=545, Unknown=0, NotChecked=0, Total=756 [2020-10-14 10:20:16,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3801 states. [2020-10-14 10:20:16,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3801 to 3369. [2020-10-14 10:20:16,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3369 states. [2020-10-14 10:20:16,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3369 states to 3369 states and 4537 transitions. [2020-10-14 10:20:16,338 INFO L78 Accepts]: Start accepts. Automaton has 3369 states and 4537 transitions. Word has length 129 [2020-10-14 10:20:16,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:20:16,338 INFO L479 AbstractCegarLoop]: Abstraction has 3369 states and 4537 transitions. [2020-10-14 10:20:16,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 10:20:16,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3369 states and 4537 transitions. [2020-10-14 10:20:16,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 10:20:16,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:20:16,341 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:20:16,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 10:20:16,341 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:20:16,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:20:16,341 INFO L82 PathProgramCache]: Analyzing trace with hash 473506967, now seen corresponding path program 1 times [2020-10-14 10:20:16,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:20:16,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234744900] [2020-10-14 10:20:16,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:20:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 10:20:16,357 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 10:20:16,357 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 10:20:16,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 10:20:16,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 10:20:16 BoogieIcfgContainer [2020-10-14 10:20:16,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 10:20:16,415 INFO L168 Benchmark]: Toolchain (without parser) took 62488.41 ms. Allocated memory was 147.3 MB in the beginning and 1.0 GB in the end (delta: 900.2 MB). Free memory was 103.5 MB in the beginning and 754.3 MB in the end (delta: -650.8 MB). Peak memory consumption was 249.4 MB. Max. memory is 7.1 GB. [2020-10-14 10:20:16,416 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 10:20:16,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.60 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 103.5 MB in the beginning and 180.6 MB in the end (delta: -77.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-10-14 10:20:16,423 INFO L168 Benchmark]: Boogie Preprocessor took 47.69 ms. Allocated memory is still 203.9 MB. Free memory was 180.6 MB in the beginning and 178.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-14 10:20:16,423 INFO L168 Benchmark]: RCFGBuilder took 566.54 ms. Allocated memory is still 203.9 MB. Free memory was 178.6 MB in the beginning and 148.2 MB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-10-14 10:20:16,425 INFO L168 Benchmark]: TraceAbstraction took 61446.63 ms. Allocated memory was 203.9 MB in the beginning and 1.0 GB in the end (delta: 843.6 MB). Free memory was 148.2 MB in the beginning and 754.3 MB in the end (delta: -606.1 MB). Peak memory consumption was 237.5 MB. Max. memory is 7.1 GB. [2020-10-14 10:20:16,433 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 421.60 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 103.5 MB in the beginning and 180.6 MB in the end (delta: -77.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.69 ms. Allocated memory is still 203.9 MB. Free memory was 180.6 MB in the beginning and 178.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 566.54 ms. Allocated memory is still 203.9 MB. Free memory was 178.6 MB in the beginning and 148.2 MB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 61446.63 ms. Allocated memory was 203.9 MB in the beginning and 1.0 GB in the end (delta: 843.6 MB). Free memory was 148.2 MB in the beginning and 754.3 MB in the end (delta: -606.1 MB). Peak memory consumption was 237.5 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, 139 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 61.3s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1709 SDtfs, 5349 SDslu, 542 SDs, 0 SdLazy, 10311 SolverSat, 3163 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 490 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4248occurred 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: 2.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 2176 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 39.9s InterpolantComputationTime, 1119 NumberOfCodeBlocks, 1119 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 980 ConstructedInterpolants, 0 QuantifiedInterpolants, 215876 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 148/155 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...