/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/eca-rers2012/Problem12_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 02:55:07,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 02:55:07,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 02:55:07,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 02:55:07,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 02:55:07,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 02:55:07,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 02:55:07,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 02:55:07,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 02:55:07,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 02:55:07,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 02:55:07,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 02:55:07,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 02:55:07,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 02:55:07,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 02:55:07,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 02:55:07,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 02:55:07,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 02:55:07,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 02:55:07,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 02:55:07,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 02:55:07,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 02:55:07,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 02:55:07,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 02:55:07,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 02:55:07,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 02:55:07,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 02:55:07,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 02:55:07,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 02:55:07,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 02:55:07,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 02:55:07,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 02:55:07,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 02:55:07,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 02:55:07,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 02:55:07,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 02:55:07,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 02:55:07,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 02:55:07,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 02:55:07,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 02:55:07,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 02:55:07,573 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 02:55:07,606 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 02:55:07,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 02:55:07,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 02:55:07,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 02:55:07,608 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 02:55:07,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 02:55:07,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 02:55:07,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 02:55:07,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 02:55:07,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 02:55:07,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 02:55:07,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 02:55:07,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 02:55:07,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 02:55:07,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 02:55:07,613 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 02:55:07,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 02:55:07,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 02:55:07,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 02:55:07,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 02:55:07,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 02:55:07,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:55:07,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 02:55:07,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 02:55:07,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 02:55:07,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 02:55:07,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 02:55:07,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 02:55:07,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 02:55:07,615 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 02:55:07,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 02:55:07,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 02:55:07,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 02:55:07,899 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 02:55:07,900 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 02:55:07,900 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label53.c [2020-10-14 02:55:07,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc5693e31/3ed9a0773e504e42bec9dd90fbd608f0/FLAG825f64435 [2020-10-14 02:55:08,759 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 02:55:08,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem12_label53.c [2020-10-14 02:55:08,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc5693e31/3ed9a0773e504e42bec9dd90fbd608f0/FLAG825f64435 [2020-10-14 02:55:09,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc5693e31/3ed9a0773e504e42bec9dd90fbd608f0 [2020-10-14 02:55:09,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 02:55:09,265 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 02:55:09,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 02:55:09,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 02:55:09,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 02:55:09,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:55:09" (1/1) ... [2020-10-14 02:55:09,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aae5b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:09, skipping insertion in model container [2020-10-14 02:55:09,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:55:09" (1/1) ... [2020-10-14 02:55:09,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 02:55:09,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 02:55:10,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:55:10,911 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 02:55:11,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:55:11,603 INFO L208 MainTranslator]: Completed translation [2020-10-14 02:55:11,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:11 WrapperNode [2020-10-14 02:55:11,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 02:55:11,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 02:55:11,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 02:55:11,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 02:55:11,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:11" (1/1) ... [2020-10-14 02:55:11,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:11" (1/1) ... [2020-10-14 02:55:11,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:11" (1/1) ... [2020-10-14 02:55:11,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:11" (1/1) ... [2020-10-14 02:55:11,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:11" (1/1) ... [2020-10-14 02:55:11,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:11" (1/1) ... [2020-10-14 02:55:11,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:11" (1/1) ... [2020-10-14 02:55:11,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 02:55:11,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 02:55:11,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 02:55:11,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 02:55:11,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:11" (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 02:55:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 02:55:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 02:55:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 02:55:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 02:55:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 02:55:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 02:55:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 02:55:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 02:55:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 02:55:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 02:55:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 02:55:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 02:55:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 02:55:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 02:55:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 02:55:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 02:55:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 02:55:16,383 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 02:55:16,383 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 02:55:16,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:55:16 BoogieIcfgContainer [2020-10-14 02:55:16,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 02:55:16,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 02:55:16,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 02:55:16,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 02:55:16,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:55:09" (1/3) ... [2020-10-14 02:55:16,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d574086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:55:16, skipping insertion in model container [2020-10-14 02:55:16,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:55:11" (2/3) ... [2020-10-14 02:55:16,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d574086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:55:16, skipping insertion in model container [2020-10-14 02:55:16,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:55:16" (3/3) ... [2020-10-14 02:55:16,414 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem12_label53.c [2020-10-14 02:55:16,428 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 02:55:16,438 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 02:55:16,453 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 02:55:16,487 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 02:55:16,487 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 02:55:16,487 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 02:55:16,488 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 02:55:16,488 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 02:55:16,488 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 02:55:16,488 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 02:55:16,488 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 02:55:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states. [2020-10-14 02:55:16,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-14 02:55:16,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:55:16,537 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] [2020-10-14 02:55:16,538 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:55:16,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:55:16,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1583493141, now seen corresponding path program 1 times [2020-10-14 02:55:16,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:55:16,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339054959] [2020-10-14 02:55:16,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:55:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:16,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:17,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:17,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 02:55:17,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:55:17,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-10-14 02:55:17,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:17,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:17,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:55:17,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:55:17,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 02:55:17,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 02:55:17,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:55:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:17,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:17,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:17,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:55:17,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:55:17,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 02:55:17,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:17,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:17,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:55:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:55:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:55:17,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:17,385 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 02:55:17,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339054959] [2020-10-14 02:55:17,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:55:17,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 02:55:17,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438831169] [2020-10-14 02:55:17,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 02:55:17,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:55:17,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 02:55:17,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 02:55:17,411 INFO L87 Difference]: Start difference. First operand 839 states. Second operand 4 states. [2020-10-14 02:55:25,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:55:25,051 INFO L93 Difference]: Finished difference Result 2471 states and 4736 transitions. [2020-10-14 02:55:25,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:55:25,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-10-14 02:55:25,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:55:25,116 INFO L225 Difference]: With dead ends: 2471 [2020-10-14 02:55:25,117 INFO L226 Difference]: Without dead ends: 1568 [2020-10-14 02:55:25,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:55:25,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2020-10-14 02:55:25,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1553. [2020-10-14 02:55:25,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1553 states. [2020-10-14 02:55:25,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2725 transitions. [2020-10-14 02:55:25,340 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2725 transitions. Word has length 38 [2020-10-14 02:55:25,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:55:25,341 INFO L479 AbstractCegarLoop]: Abstraction has 1553 states and 2725 transitions. [2020-10-14 02:55:25,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 02:55:25,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2725 transitions. [2020-10-14 02:55:25,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-14 02:55:25,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:55:25,347 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] [2020-10-14 02:55:25,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 02:55:25,348 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:55:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:55:25,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1077610455, now seen corresponding path program 1 times [2020-10-14 02:55:25,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:55:25,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751715913] [2020-10-14 02:55:25,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:55:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:25,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:25,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:26,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:26,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:26,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:55:26,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:55:26,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1308 [2020-10-14 02:55:26,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:26,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:55:26,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 02:55:26,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 02:55:26,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 02:55:26,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:55:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:26,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:26,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:26,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:55:26,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:55:26,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:55:26,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:26,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:55:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:55:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:55:26,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:26,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:55:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:26,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:26,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:26,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 02:55:26,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:55:26,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 02:55:26,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:26,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:55:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:55:26,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 02:55:26,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:26,937 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:55:26,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751715913] [2020-10-14 02:55:26,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:55:26,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:55:26,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966966181] [2020-10-14 02:55:26,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:55:26,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:55:26,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:55:26,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:55:26,941 INFO L87 Difference]: Start difference. First operand 1553 states and 2725 transitions. Second operand 5 states. [2020-10-14 02:55:36,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:55:36,678 INFO L93 Difference]: Finished difference Result 4675 states and 8270 transitions. [2020-10-14 02:55:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:55:36,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-10-14 02:55:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:55:36,697 INFO L225 Difference]: With dead ends: 4675 [2020-10-14 02:55:36,697 INFO L226 Difference]: Without dead ends: 3128 [2020-10-14 02:55:36,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:55:36,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2020-10-14 02:55:36,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 3111. [2020-10-14 02:55:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3111 states. [2020-10-14 02:55:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 4905 transitions. [2020-10-14 02:55:36,782 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 4905 transitions. Word has length 107 [2020-10-14 02:55:36,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:55:36,783 INFO L479 AbstractCegarLoop]: Abstraction has 3111 states and 4905 transitions. [2020-10-14 02:55:36,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:55:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 4905 transitions. [2020-10-14 02:55:36,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 02:55:36,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:55:36,786 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] [2020-10-14 02:55:36,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 02:55:36,786 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:55:36,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:55:36,787 INFO L82 PathProgramCache]: Analyzing trace with hash 745619404, now seen corresponding path program 1 times [2020-10-14 02:55:36,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:55:36,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98116873] [2020-10-14 02:55:36,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:55:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:36,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:37,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:37,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:37,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:37,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 02:55:37,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:55:37,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 800 [2020-10-14 02:55:37,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:37,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:55:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 02:55:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 02:55:37,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:37,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:55:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:37,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:37,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:37,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:55:37,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:55:37,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:55:37,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:37,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:37,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:55:37,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:55:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:55:37,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:55:37,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:55:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:37,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:37,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:37,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 02:55:37,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:55:37,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 02:55:37,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:37,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:55:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:55:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 02:55:37,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:55:37,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98116873] [2020-10-14 02:55:37,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:55:37,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:55:37,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548536936] [2020-10-14 02:55:37,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:55:37,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:55:37,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:55:37,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:55:37,843 INFO L87 Difference]: Start difference. First operand 3111 states and 4905 transitions. Second operand 5 states. [2020-10-14 02:55:47,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:55:47,460 INFO L93 Difference]: Finished difference Result 9346 states and 14957 transitions. [2020-10-14 02:55:47,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:55:47,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2020-10-14 02:55:47,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:55:47,500 INFO L225 Difference]: With dead ends: 9346 [2020-10-14 02:55:47,500 INFO L226 Difference]: Without dead ends: 6241 [2020-10-14 02:55:47,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:55:47,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2020-10-14 02:55:47,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6229. [2020-10-14 02:55:47,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6229 states. [2020-10-14 02:55:47,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6229 states to 6229 states and 8863 transitions. [2020-10-14 02:55:47,712 INFO L78 Accepts]: Start accepts. Automaton has 6229 states and 8863 transitions. Word has length 108 [2020-10-14 02:55:47,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:55:47,717 INFO L479 AbstractCegarLoop]: Abstraction has 6229 states and 8863 transitions. [2020-10-14 02:55:47,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:55:47,717 INFO L276 IsEmpty]: Start isEmpty. Operand 6229 states and 8863 transitions. [2020-10-14 02:55:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 02:55:47,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:55:47,728 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] [2020-10-14 02:55:47,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 02:55:47,728 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:55:47,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:55:47,729 INFO L82 PathProgramCache]: Analyzing trace with hash 642436613, now seen corresponding path program 1 times [2020-10-14 02:55:47,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:55:47,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165400802] [2020-10-14 02:55:47,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:55:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:47,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:47,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:48,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:48,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:48,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 02:55:48,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:55:48,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-10-14 02:55:48,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:48,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:55:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 02:55:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 02:55:48,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:55:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:48,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:48,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:48,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:55:48,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:55:48,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:55:48,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:48,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:48,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:55:48,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:55:48,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:55:48,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:48,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:55:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:48,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:48,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:48,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 02:55:48,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:55:48,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 02:55:48,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:48,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:55:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:55:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 02:55:48,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:55:48,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165400802] [2020-10-14 02:55:48,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:55:48,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:55:48,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434963165] [2020-10-14 02:55:48,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:55:48,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:55:48,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:55:48,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:55:48,802 INFO L87 Difference]: Start difference. First operand 6229 states and 8863 transitions. Second operand 5 states. [2020-10-14 02:55:58,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:55:58,505 INFO L93 Difference]: Finished difference Result 15571 states and 22849 transitions. [2020-10-14 02:55:58,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:55:58,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-14 02:55:58,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:55:58,547 INFO L225 Difference]: With dead ends: 15571 [2020-10-14 02:55:58,547 INFO L226 Difference]: Without dead ends: 9348 [2020-10-14 02:55:58,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:55:58,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9348 states. [2020-10-14 02:55:58,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9348 to 9332. [2020-10-14 02:55:58,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9332 states. [2020-10-14 02:55:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9332 states to 9332 states and 12407 transitions. [2020-10-14 02:55:58,798 INFO L78 Accepts]: Start accepts. Automaton has 9332 states and 12407 transitions. Word has length 109 [2020-10-14 02:55:58,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:55:58,800 INFO L479 AbstractCegarLoop]: Abstraction has 9332 states and 12407 transitions. [2020-10-14 02:55:58,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:55:58,800 INFO L276 IsEmpty]: Start isEmpty. Operand 9332 states and 12407 transitions. [2020-10-14 02:55:58,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-14 02:55:58,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:55:58,805 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] [2020-10-14 02:55:58,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 02:55:58,805 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:55:58,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:55:58,806 INFO L82 PathProgramCache]: Analyzing trace with hash -2079791956, now seen corresponding path program 1 times [2020-10-14 02:55:58,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:55:58,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327700045] [2020-10-14 02:55:58,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:55:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:58,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:59,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:59,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:59,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:59,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 02:55:59,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:55:59,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-10-14 02:55:59,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:59,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:55:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-14 02:55:59,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 02:55:59,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:59,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:55:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:59,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:59,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:59,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:55:59,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:55:59,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:55:59,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:59,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:55:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:55:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:55:59,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:59,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:55:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:55:59,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:55:59,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:55:59,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:55:59,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:55:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 02:55:59,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:55:59,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:55:59,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:55:59,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:55:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 02:55:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:55:59,829 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:55:59,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327700045] [2020-10-14 02:55:59,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:55:59,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:55:59,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442783385] [2020-10-14 02:55:59,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:55:59,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:55:59,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:55:59,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:55:59,831 INFO L87 Difference]: Start difference. First operand 9332 states and 12407 transitions. Second operand 5 states. [2020-10-14 02:56:11,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:56:11,333 INFO L93 Difference]: Finished difference Result 23337 states and 31745 transitions. [2020-10-14 02:56:11,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:56:11,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-14 02:56:11,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:56:11,387 INFO L225 Difference]: With dead ends: 23337 [2020-10-14 02:56:11,387 INFO L226 Difference]: Without dead ends: 14011 [2020-10-14 02:56:11,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:56:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14011 states. [2020-10-14 02:56:11,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14011 to 13984. [2020-10-14 02:56:11,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13984 states. [2020-10-14 02:56:11,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13984 states to 13984 states and 18586 transitions. [2020-10-14 02:56:11,860 INFO L78 Accepts]: Start accepts. Automaton has 13984 states and 18586 transitions. Word has length 124 [2020-10-14 02:56:11,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:56:11,861 INFO L479 AbstractCegarLoop]: Abstraction has 13984 states and 18586 transitions. [2020-10-14 02:56:11,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:56:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 13984 states and 18586 transitions. [2020-10-14 02:56:11,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-14 02:56:11,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:56:11,865 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] [2020-10-14 02:56:11,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 02:56:11,866 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:56:11,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:56:11,866 INFO L82 PathProgramCache]: Analyzing trace with hash 44354888, now seen corresponding path program 1 times [2020-10-14 02:56:11,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:56:11,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55866003] [2020-10-14 02:56:11,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:56:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:56:11,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:12,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:12,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:56:12,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 02:56:12,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:56:12,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 776 [2020-10-14 02:56:12,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:56:12,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:56:12,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:56:12,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:56:12,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 02:56:12,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:56:12,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:56:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:56:12,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:12,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:56:12,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:56:12,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:56:12,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:56:12,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:56:12,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:56:12,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:56:12,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:56:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:56:12,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:56:12,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:56:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:56:12,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:12,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:56:12,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:56:12,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:56:12,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 02:56:12,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:56:12,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:56:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:56:12,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:56:12,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:56:12,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:56:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:56:12,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55866003] [2020-10-14 02:56:12,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:56:12,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:56:12,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64129099] [2020-10-14 02:56:12,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:56:12,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:56:12,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:56:12,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:56:12,936 INFO L87 Difference]: Start difference. First operand 13984 states and 18586 transitions. Second operand 5 states. [2020-10-14 02:56:23,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:56:23,845 INFO L93 Difference]: Finished difference Result 34964 states and 48346 transitions. [2020-10-14 02:56:23,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:56:23,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-10-14 02:56:23,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:56:23,921 INFO L225 Difference]: With dead ends: 34964 [2020-10-14 02:56:23,921 INFO L226 Difference]: Without dead ends: 20986 [2020-10-14 02:56:23,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:56:23,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20986 states. [2020-10-14 02:56:24,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20986 to 20206. [2020-10-14 02:56:24,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20206 states. [2020-10-14 02:56:24,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20206 states to 20206 states and 26685 transitions. [2020-10-14 02:56:24,457 INFO L78 Accepts]: Start accepts. Automaton has 20206 states and 26685 transitions. Word has length 126 [2020-10-14 02:56:24,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:56:24,458 INFO L479 AbstractCegarLoop]: Abstraction has 20206 states and 26685 transitions. [2020-10-14 02:56:24,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:56:24,458 INFO L276 IsEmpty]: Start isEmpty. Operand 20206 states and 26685 transitions. [2020-10-14 02:56:24,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-14 02:56:24,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:56:24,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:56:24,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 02:56:24,470 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:56:24,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:56:24,470 INFO L82 PathProgramCache]: Analyzing trace with hash 9589852, now seen corresponding path program 1 times [2020-10-14 02:56:24,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:56:24,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139499976] [2020-10-14 02:56:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:56:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:56:24,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:24,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:25,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:26,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:56:26,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 02:56:26,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:56:26,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1472 [2020-10-14 02:56:26,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:56:26,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:56:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:56:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-10-14 02:56:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 02:56:26,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:56:26,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:56:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:56:26,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:26,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:56:26,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:56:26,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:56:26,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:56:26,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:56:26,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:56:26,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:56:26,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:56:26,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:56:26,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:56:26,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:56:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:56:26,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:26,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:56:26,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-14 02:56:26,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:56:26,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 02:56:26,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:56:26,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:56:26,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:56:26,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:56:26,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-10-14 02:56:26,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:56:26,498 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:56:26,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139499976] [2020-10-14 02:56:26,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:56:26,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:56:26,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547919308] [2020-10-14 02:56:26,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:56:26,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:56:26,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:56:26,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:56:26,501 INFO L87 Difference]: Start difference. First operand 20206 states and 26685 transitions. Second operand 5 states. [2020-10-14 02:56:38,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:56:38,191 INFO L93 Difference]: Finished difference Result 59796 states and 81850 transitions. [2020-10-14 02:56:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:56:38,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 228 [2020-10-14 02:56:38,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:56:38,340 INFO L225 Difference]: With dead ends: 59796 [2020-10-14 02:56:38,340 INFO L226 Difference]: Without dead ends: 39596 [2020-10-14 02:56:38,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:56:38,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39596 states. [2020-10-14 02:56:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39596 to 38816. [2020-10-14 02:56:39,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38816 states. [2020-10-14 02:56:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38816 states to 38816 states and 51185 transitions. [2020-10-14 02:56:39,434 INFO L78 Accepts]: Start accepts. Automaton has 38816 states and 51185 transitions. Word has length 228 [2020-10-14 02:56:39,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:56:39,435 INFO L479 AbstractCegarLoop]: Abstraction has 38816 states and 51185 transitions. [2020-10-14 02:56:39,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:56:39,435 INFO L276 IsEmpty]: Start isEmpty. Operand 38816 states and 51185 transitions. [2020-10-14 02:56:39,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-14 02:56:39,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:56:39,463 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:56:39,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 02:56:39,463 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:56:39,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:56:39,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1327752488, now seen corresponding path program 1 times [2020-10-14 02:56:39,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:56:39,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070547545] [2020-10-14 02:56:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:56:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:56:39,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:39,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:40,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:42,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:56:42,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-10-14 02:56:42,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:56:42,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2878 [2020-10-14 02:56:42,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:56:42,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:56:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:56:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-10-14 02:56:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 02:56:42,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:56:42,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:56:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:56:42,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:42,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:56:42,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:56:42,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:56:42,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:56:42,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:56:42,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:56:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:56:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:56:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:56:42,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:56:42,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:56:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:56:42,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:42,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:56:42,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 02:56:42,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:56:42,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 02:56:42,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:56:42,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:56:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:56:42,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:56:42,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 02:56:42,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:56:42,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-14 02:56:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:56:42,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:56:43,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:56:43,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-14 02:56:43,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:56:43,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-14 02:56:43,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:56:43,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:56:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:56:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:56:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 02:56:43,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:56:43,861 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:56:43,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070547545] [2020-10-14 02:56:43,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:56:43,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 02:56:43,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700392108] [2020-10-14 02:56:43,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 02:56:43,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:56:43,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 02:56:43,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:56:43,864 INFO L87 Difference]: Start difference. First operand 38816 states and 51185 transitions. Second operand 8 states. [2020-10-14 02:57:00,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:57:00,092 INFO L93 Difference]: Finished difference Result 102133 states and 143387 transitions. [2020-10-14 02:57:00,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 02:57:00,094 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 341 [2020-10-14 02:57:00,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:57:00,339 INFO L225 Difference]: With dead ends: 102133 [2020-10-14 02:57:00,339 INFO L226 Difference]: Without dead ends: 63323 [2020-10-14 02:57:00,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 02:57:00,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63323 states. [2020-10-14 02:57:03,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63323 to 63185. [2020-10-14 02:57:03,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63185 states. [2020-10-14 02:57:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63185 states to 63185 states and 81754 transitions. [2020-10-14 02:57:03,620 INFO L78 Accepts]: Start accepts. Automaton has 63185 states and 81754 transitions. Word has length 341 [2020-10-14 02:57:03,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:57:03,621 INFO L479 AbstractCegarLoop]: Abstraction has 63185 states and 81754 transitions. [2020-10-14 02:57:03,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 02:57:03,622 INFO L276 IsEmpty]: Start isEmpty. Operand 63185 states and 81754 transitions. [2020-10-14 02:57:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-14 02:57:03,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:57:03,659 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:57:03,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 02:57:03,659 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:57:03,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:57:03,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1790771804, now seen corresponding path program 1 times [2020-10-14 02:57:03,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:57:03,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722868150] [2020-10-14 02:57:03,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:57:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:03,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:03,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:05,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:05,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:05,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:05,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:08,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:08,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 380 [2020-10-14 02:57:08,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 02:57:08,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5113 [2020-10-14 02:57:08,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:08,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:57:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 02:57:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 02:57:08,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:08,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:57:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:08,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:08,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:08,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:57:08,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:08,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:57:08,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:08,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:57:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:57:08,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:08,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:57:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:08,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:09,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:09,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 02:57:09,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:09,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 02:57:09,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:09,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:57:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:57:09,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:09,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 02:57:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:09,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:09,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:09,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 02:57:09,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:09,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 02:57:09,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:09,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:09,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:57:09,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:09,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 02:57:09,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:09,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 02:57:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:09,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:09,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:09,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-14 02:57:09,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:09,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 02:57:09,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:09,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:09,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:57:09,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:57:09,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 02:57:09,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:57:09,596 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-14 02:57:09,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722868150] [2020-10-14 02:57:09,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:57:09,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:57:09,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774726259] [2020-10-14 02:57:09,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:57:09,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:57:09,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:57:09,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:57:09,611 INFO L87 Difference]: Start difference. First operand 63185 states and 81754 transitions. Second operand 7 states. [2020-10-14 02:57:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:57:29,194 INFO L93 Difference]: Finished difference Result 128289 states and 174260 transitions. [2020-10-14 02:57:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:57:29,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 366 [2020-10-14 02:57:29,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:57:29,749 INFO L225 Difference]: With dead ends: 128289 [2020-10-14 02:57:29,750 INFO L226 Difference]: Without dead ends: 65110 [2020-10-14 02:57:29,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:57:29,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65110 states. [2020-10-14 02:57:30,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65110 to 62171. [2020-10-14 02:57:30,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62171 states. [2020-10-14 02:57:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62171 states to 62171 states and 74419 transitions. [2020-10-14 02:57:31,091 INFO L78 Accepts]: Start accepts. Automaton has 62171 states and 74419 transitions. Word has length 366 [2020-10-14 02:57:31,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:57:31,092 INFO L479 AbstractCegarLoop]: Abstraction has 62171 states and 74419 transitions. [2020-10-14 02:57:31,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:57:31,092 INFO L276 IsEmpty]: Start isEmpty. Operand 62171 states and 74419 transitions. [2020-10-14 02:57:31,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-10-14 02:57:31,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:57:31,139 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:57:31,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 02:57:31,139 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:57:31,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:57:31,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1346303304, now seen corresponding path program 1 times [2020-10-14 02:57:31,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:57:31,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373269772] [2020-10-14 02:57:31,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:57:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:31,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:31,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:31,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:32,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:37,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:37,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-14 02:57:37,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:57:37,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6392 [2020-10-14 02:57:37,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:37,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:57:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 431 [2020-10-14 02:57:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 02:57:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:37,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:57:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:37,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:37,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:37,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:57:37,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:37,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:57:37,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:37,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:57:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:57:37,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:57:37,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:57:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:37,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:37,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:37,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 02:57:37,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:37,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 02:57:37,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:37,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:57:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:57:37,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:57:37,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 02:57:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:37,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:38,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:38,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-14 02:57:38,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:38,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-10-14 02:57:38,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:38,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:38,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:57:38,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:38,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 320 [2020-10-14 02:57:38,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:57:38,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:57:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:38,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:38,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:38,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 02:57:38,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:38,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 02:57:38,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:38,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:38,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:57:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 02:57:38,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-14 02:57:38,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373269772] [2020-10-14 02:57:38,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:57:38,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:57:38,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403999464] [2020-10-14 02:57:38,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:57:38,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:57:38,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:57:38,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:57:38,580 INFO L87 Difference]: Start difference. First operand 62171 states and 74419 transitions. Second operand 5 states. [2020-10-14 02:57:51,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:57:51,467 INFO L93 Difference]: Finished difference Result 123585 states and 148313 transitions. [2020-10-14 02:57:51,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:57:51,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 458 [2020-10-14 02:57:51,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:57:51,590 INFO L225 Difference]: With dead ends: 123585 [2020-10-14 02:57:51,590 INFO L226 Difference]: Without dead ends: 62198 [2020-10-14 02:57:51,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:57:51,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62198 states. [2020-10-14 02:57:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62198 to 62171. [2020-10-14 02:57:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62171 states. [2020-10-14 02:57:52,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62171 states to 62171 states and 71184 transitions. [2020-10-14 02:57:52,300 INFO L78 Accepts]: Start accepts. Automaton has 62171 states and 71184 transitions. Word has length 458 [2020-10-14 02:57:52,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:57:52,301 INFO L479 AbstractCegarLoop]: Abstraction has 62171 states and 71184 transitions. [2020-10-14 02:57:52,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:57:52,301 INFO L276 IsEmpty]: Start isEmpty. Operand 62171 states and 71184 transitions. [2020-10-14 02:57:52,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2020-10-14 02:57:52,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:57:52,452 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:57:52,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 02:57:52,452 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:57:52,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:57:52,453 INFO L82 PathProgramCache]: Analyzing trace with hash -531675937, now seen corresponding path program 1 times [2020-10-14 02:57:52,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:57:52,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791576195] [2020-10-14 02:57:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:57:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:52,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:52,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:53,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:57,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:57,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 945 [2020-10-14 02:57:57,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:57:57,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5113 [2020-10-14 02:57:57,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:57,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:57:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-14 02:57:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 02:57:57,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:57,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:57:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:57,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:57,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:57:57,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:57,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:57:57,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:57,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:57:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:57:57,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:57:57,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:57:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:57,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:57,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:57,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 02:57:57,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:57,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 02:57:57,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:57,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:57,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:57:57,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:57,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 02:57:57,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:58,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 02:57:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:58,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:58,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:58,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:57:58,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:58,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-14 02:57:58,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:58,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:57:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:57:58,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:57:58,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:58,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-14 02:57:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:58,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:59,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:59,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 696 [2020-10-14 02:57:59,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:59,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-10-14 02:57:59,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:59,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:59,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:57:59,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 693 [2020-10-14 02:57:59,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:57:59,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:59,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:57:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:59,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:59,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:59,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 408 [2020-10-14 02:57:59,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:59,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 02:57:59,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:59,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:59,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:57:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:57:59,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:57:59,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:57:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:57:59,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:57:59,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:57:59,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 02:57:59,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:57:59,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 02:57:59,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:57:59,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:57:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:57:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:57:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:57:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:58:00,341 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 188 proven. 103 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 02:58:00,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791576195] [2020-10-14 02:58:00,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:58:00,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:58:00,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376912205] [2020-10-14 02:58:00,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:58:00,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:58:00,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:58:00,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:58:00,345 INFO L87 Difference]: Start difference. First operand 62171 states and 71184 transitions. Second operand 7 states. [2020-10-14 02:58:24,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:58:24,370 INFO L93 Difference]: Finished difference Result 137261 states and 164133 transitions. [2020-10-14 02:58:24,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:58:24,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 927 [2020-10-14 02:58:24,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:58:24,590 INFO L225 Difference]: With dead ends: 137261 [2020-10-14 02:58:24,591 INFO L226 Difference]: Without dead ends: 75874 [2020-10-14 02:58:24,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:58:24,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75874 states. [2020-10-14 02:58:25,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75874 to 73595. [2020-10-14 02:58:25,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73595 states. [2020-10-14 02:58:25,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73595 states to 73595 states and 84026 transitions. [2020-10-14 02:58:25,577 INFO L78 Accepts]: Start accepts. Automaton has 73595 states and 84026 transitions. Word has length 927 [2020-10-14 02:58:25,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:58:25,578 INFO L479 AbstractCegarLoop]: Abstraction has 73595 states and 84026 transitions. [2020-10-14 02:58:25,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:58:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand 73595 states and 84026 transitions. [2020-10-14 02:58:25,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2020-10-14 02:58:25,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:58:25,712 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:25,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 02:58:25,712 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:58:25,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:58:25,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1216119921, now seen corresponding path program 1 times [2020-10-14 02:58:25,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:58:25,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068304735] [2020-10-14 02:58:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:58:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:58:25,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:58:25,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:58:26,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:58:30,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:58:30,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 969 [2020-10-14 02:58:30,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:58:30,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-14 02:58:30,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:58:30,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:58:30,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:58:30,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-14 02:58:30,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 02:58:30,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:58:31,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:58:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:58:31,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:58:31,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:58:31,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:58:31,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:58:31,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:58:31,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:58:31,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:58:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:58:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:58:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:58:31,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:58:31,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:58:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:58:31,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:58:31,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:58:31,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 02:58:31,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:58:31,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 02:58:31,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:58:31,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:58:31,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:58:31,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:58:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:58:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:58:31,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 02:58:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:58:31,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:58:31,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:58:31,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:58:31,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:58:31,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 02:58:31,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:58:31,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:58:31,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:58:31,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:58:31,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:58:31,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:58:32,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-14 02:58:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:58:32,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:58:33,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:58:33,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 696 [2020-10-14 02:58:33,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:58:33,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-14 02:58:33,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:58:33,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:58:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:58:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 693 [2020-10-14 02:58:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:58:33,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:58:33,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:58:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:58:33,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:58:33,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:58:33,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 408 [2020-10-14 02:58:33,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:58:33,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 02:58:33,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:58:33,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:58:33,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:58:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:58:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:58:33,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:58:33,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:58:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:58:33,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:58:33,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:58:33,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 02:58:33,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:58:33,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 02:58:33,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:58:33,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:58:33,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:58:33,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:58:33,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:58:33,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:58:33,995 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 198 proven. 103 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-14 02:58:33,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068304735] [2020-10-14 02:58:33,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:58:33,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 02:58:33,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605302528] [2020-10-14 02:58:33,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 02:58:33,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:58:33,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 02:58:33,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:58:33,998 INFO L87 Difference]: Start difference. First operand 73595 states and 84026 transitions. Second operand 8 states.