/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/Problem04_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 01:05:06,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 01:05:06,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 01:05:06,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 01:05:06,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 01:05:06,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 01:05:06,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 01:05:06,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 01:05:06,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 01:05:06,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 01:05:06,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 01:05:06,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 01:05:06,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 01:05:06,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 01:05:06,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 01:05:06,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 01:05:06,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 01:05:06,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 01:05:06,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 01:05:06,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 01:05:06,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 01:05:06,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 01:05:06,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 01:05:06,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 01:05:06,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 01:05:06,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 01:05:06,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 01:05:06,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 01:05:06,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 01:05:06,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 01:05:06,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 01:05:06,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 01:05:06,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 01:05:06,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 01:05:06,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 01:05:06,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 01:05:06,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 01:05:06,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 01:05:06,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 01:05:06,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 01:05:06,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 01:05:06,332 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 01:05:06,353 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 01:05:06,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 01:05:06,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 01:05:06,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 01:05:06,355 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 01:05:06,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 01:05:06,356 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 01:05:06,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 01:05:06,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 01:05:06,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 01:05:06,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 01:05:06,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 01:05:06,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 01:05:06,357 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 01:05:06,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 01:05:06,357 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 01:05:06,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 01:05:06,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 01:05:06,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 01:05:06,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 01:05:06,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 01:05:06,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:05:06,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 01:05:06,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 01:05:06,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 01:05:06,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 01:05:06,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 01:05:06,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 01:05:06,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 01:05:06,360 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 01:05:06,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 01:05:06,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 01:05:06,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 01:05:06,691 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 01:05:06,692 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 01:05:06,693 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label30.c [2020-10-14 01:05:06,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/586f16620/1df2d18689e1428daa04cea71b99d9c6/FLAG3b98ac16c [2020-10-14 01:05:07,497 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 01:05:07,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label30.c [2020-10-14 01:05:07,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/586f16620/1df2d18689e1428daa04cea71b99d9c6/FLAG3b98ac16c [2020-10-14 01:05:07,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/586f16620/1df2d18689e1428daa04cea71b99d9c6 [2020-10-14 01:05:07,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 01:05:07,604 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 01:05:07,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 01:05:07,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 01:05:07,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 01:05:07,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:05:07" (1/1) ... [2020-10-14 01:05:07,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6317371b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:07, skipping insertion in model container [2020-10-14 01:05:07,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:05:07" (1/1) ... [2020-10-14 01:05:07,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 01:05:07,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 01:05:09,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:05:09,324 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 01:05:10,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:05:10,280 INFO L208 MainTranslator]: Completed translation [2020-10-14 01:05:10,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:10 WrapperNode [2020-10-14 01:05:10,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 01:05:10,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 01:05:10,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 01:05:10,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 01:05:10,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:10" (1/1) ... [2020-10-14 01:05:10,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:10" (1/1) ... [2020-10-14 01:05:10,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:10" (1/1) ... [2020-10-14 01:05:10,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:10" (1/1) ... [2020-10-14 01:05:10,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:10" (1/1) ... [2020-10-14 01:05:10,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:10" (1/1) ... [2020-10-14 01:05:10,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:10" (1/1) ... [2020-10-14 01:05:10,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 01:05:10,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 01:05:10,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 01:05:10,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 01:05:10,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:10" (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 01:05:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 01:05:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 01:05:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 01:05:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 01:05:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 01:05:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 01:05:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 01:05:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 01:05:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 01:05:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 01:05:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 01:05:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 01:05:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 01:05:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 01:05:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 01:05:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 01:05:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 01:05:15,003 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 01:05:15,003 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 01:05:15,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:05:15 BoogieIcfgContainer [2020-10-14 01:05:15,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 01:05:15,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 01:05:15,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 01:05:15,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 01:05:15,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:05:07" (1/3) ... [2020-10-14 01:05:15,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bde9323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:05:15, skipping insertion in model container [2020-10-14 01:05:15,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:10" (2/3) ... [2020-10-14 01:05:15,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bde9323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:05:15, skipping insertion in model container [2020-10-14 01:05:15,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:05:15" (3/3) ... [2020-10-14 01:05:15,035 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label30.c [2020-10-14 01:05:15,045 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 01:05:15,060 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 01:05:15,073 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 01:05:15,108 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 01:05:15,108 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 01:05:15,108 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 01:05:15,108 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 01:05:15,108 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 01:05:15,108 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 01:05:15,108 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 01:05:15,108 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 01:05:15,145 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2020-10-14 01:05:15,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2020-10-14 01:05:15,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:05:15,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:15,186 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:05:15,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:05:15,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1605596670, now seen corresponding path program 1 times [2020-10-14 01:05:15,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:05:15,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356517476] [2020-10-14 01:05:15,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:05:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:16,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:20,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:21,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:21,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 807 [2020-10-14 01:05:21,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:05:21,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5105 [2020-10-14 01:05:21,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:21,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:21,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 01:05:21,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:05:21,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 801 [2020-10-14 01:05:21,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 01:05:21,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:05:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:21,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:21,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:21,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:05:21,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:05:21,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 01:05:21,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:21,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:21,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:05:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:05:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:05:21,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 01:05:23,339 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 01:05:23,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356517476] [2020-10-14 01:05:23,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:05:23,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 01:05:23,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091430613] [2020-10-14 01:05:23,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 01:05:23,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:05:23,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 01:05:23,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 01:05:23,368 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 4 states. [2020-10-14 01:05:31,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:05:31,761 INFO L93 Difference]: Finished difference Result 2672 states and 5138 transitions. [2020-10-14 01:05:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:05:31,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 793 [2020-10-14 01:05:31,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:05:31,819 INFO L225 Difference]: With dead ends: 2672 [2020-10-14 01:05:31,819 INFO L226 Difference]: Without dead ends: 1702 [2020-10-14 01:05:31,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:05:31,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2020-10-14 01:05:31,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1687. [2020-10-14 01:05:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1687 states. [2020-10-14 01:05:31,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 3015 transitions. [2020-10-14 01:05:31,994 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 3015 transitions. Word has length 793 [2020-10-14 01:05:31,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:05:31,998 INFO L479 AbstractCegarLoop]: Abstraction has 1687 states and 3015 transitions. [2020-10-14 01:05:31,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 01:05:31,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 3015 transitions. [2020-10-14 01:05:32,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2020-10-14 01:05:32,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:05:32,024 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:32,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 01:05:32,025 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:05:32,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:05:32,026 INFO L82 PathProgramCache]: Analyzing trace with hash 367548177, now seen corresponding path program 1 times [2020-10-14 01:05:32,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:05:32,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328881663] [2020-10-14 01:05:32,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:05:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:32,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:32,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:36,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:37,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:37,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 828 [2020-10-14 01:05:37,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:05:37,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 01:05:37,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:37,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 01:05:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:05:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 822 [2020-10-14 01:05:37,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:38,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:05:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:38,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:38,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:38,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:05:38,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:05:38,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 01:05:38,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:38,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:38,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:05:38,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:05:38,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:05:38,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 01:05:38,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:05:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:38,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:38,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:38,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:38,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:05:38,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:05:38,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 01:05:38,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:38,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:05:38,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:05:38,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:05:38,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:38,965 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 01:05:38,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328881663] [2020-10-14 01:05:38,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:05:38,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 01:05:38,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725850522] [2020-10-14 01:05:38,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 01:05:38,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:05:38,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 01:05:38,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:05:38,970 INFO L87 Difference]: Start difference. First operand 1687 states and 3015 transitions. Second operand 5 states. [2020-10-14 01:05:47,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:05:47,075 INFO L93 Difference]: Finished difference Result 5073 states and 9123 transitions. [2020-10-14 01:05:47,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:05:47,076 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 812 [2020-10-14 01:05:47,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:05:47,097 INFO L225 Difference]: With dead ends: 5073 [2020-10-14 01:05:47,097 INFO L226 Difference]: Without dead ends: 3392 [2020-10-14 01:05:47,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 01:05:47,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3392 states. [2020-10-14 01:05:47,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3392 to 3388. [2020-10-14 01:05:47,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3388 states. [2020-10-14 01:05:47,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 5273 transitions. [2020-10-14 01:05:47,212 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 5273 transitions. Word has length 812 [2020-10-14 01:05:47,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:05:47,214 INFO L479 AbstractCegarLoop]: Abstraction has 3388 states and 5273 transitions. [2020-10-14 01:05:47,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 01:05:47,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 5273 transitions. [2020-10-14 01:05:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2020-10-14 01:05:47,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:05:47,277 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:47,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 01:05:47,278 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:05:47,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:05:47,279 INFO L82 PathProgramCache]: Analyzing trace with hash 793444563, now seen corresponding path program 1 times [2020-10-14 01:05:47,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:05:47,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890763] [2020-10-14 01:05:47,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:05:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:47,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:47,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:47,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:49,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:52,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:52,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 875 [2020-10-14 01:05:52,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:05:52,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-14 01:05:52,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:52,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:52,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:05:52,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 01:05:52,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 01:05:52,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:52,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:05:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:52,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:52,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:52,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:05:52,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:05:52,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:05:52,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:52,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:05:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:05:52,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:05:52,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:52,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:05:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:52,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:52,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:52,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:05:52,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:05:52,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 01:05:52,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:52,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:05:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:05:52,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:05:52,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:52,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:05:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:52,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:52,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:52,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:05:52,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:05:52,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 01:05:52,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:52,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:05:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:05:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:05:52,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:52,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 01:05:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:52,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:52,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:52,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 01:05:52,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:05:52,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 01:05:52,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:52,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:05:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:05:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 01:05:52,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 01:05:53,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890763] [2020-10-14 01:05:53,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:05:53,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:05:53,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831451345] [2020-10-14 01:05:53,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:05:53,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:05:53,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:05:53,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:05:53,077 INFO L87 Difference]: Start difference. First operand 3388 states and 5273 transitions. Second operand 7 states. [2020-10-14 01:06:03,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:06:03,722 INFO L93 Difference]: Finished difference Result 8613 states and 14061 transitions. [2020-10-14 01:06:03,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:06:03,724 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 855 [2020-10-14 01:06:03,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:06:03,756 INFO L225 Difference]: With dead ends: 8613 [2020-10-14 01:06:03,756 INFO L226 Difference]: Without dead ends: 5231 [2020-10-14 01:06:03,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 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 01:06:03,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2020-10-14 01:06:03,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 5156. [2020-10-14 01:06:03,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5156 states. [2020-10-14 01:06:03,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 7615 transitions. [2020-10-14 01:06:03,942 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 7615 transitions. Word has length 855 [2020-10-14 01:06:03,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:06:03,942 INFO L479 AbstractCegarLoop]: Abstraction has 5156 states and 7615 transitions. [2020-10-14 01:06:03,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:06:03,943 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 7615 transitions. [2020-10-14 01:06:03,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2020-10-14 01:06:03,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:06:03,975 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:03,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 01:06:03,975 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:06:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:06:03,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1273938127, now seen corresponding path program 1 times [2020-10-14 01:06:03,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:06:03,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536206882] [2020-10-14 01:06:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:06:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:04,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:04,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:05,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:05,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:06,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:09,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:09,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 905 [2020-10-14 01:06:09,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:06:09,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 01:06:09,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:09,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:09,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:09,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 01:06:09,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 01:06:09,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:09,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:06:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:09,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:09,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:09,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:06:09,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:09,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:06:09,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:09,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:09,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:09,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:06:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:09,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:09,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:09,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:06:09,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:09,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 01:06:09,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:09,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:09,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:09,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:09,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:09,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:09,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:06:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:09,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:09,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:09,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:06:09,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:09,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 01:06:09,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:09,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:09,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:06:09,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:09,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:06:09,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:09,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 01:06:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:09,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:09,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:09,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:06:09,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 01:06:09,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:09,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:06:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 01:06:09,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 01:06:09,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536206882] [2020-10-14 01:06:09,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:06:09,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:06:09,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962738340] [2020-10-14 01:06:09,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:06:09,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:06:09,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:06:09,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:06:09,693 INFO L87 Difference]: Start difference. First operand 5156 states and 7615 transitions. Second operand 7 states. [2020-10-14 01:06:20,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:06:20,681 INFO L93 Difference]: Finished difference Result 15746 states and 24426 transitions. [2020-10-14 01:06:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:06:20,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 885 [2020-10-14 01:06:20,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:06:20,738 INFO L225 Difference]: With dead ends: 15746 [2020-10-14 01:06:20,739 INFO L226 Difference]: Without dead ends: 10596 [2020-10-14 01:06:20,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:06:20,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10596 states. [2020-10-14 01:06:21,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10596 to 10407. [2020-10-14 01:06:21,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10407 states. [2020-10-14 01:06:21,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10407 states to 10407 states and 13852 transitions. [2020-10-14 01:06:21,050 INFO L78 Accepts]: Start accepts. Automaton has 10407 states and 13852 transitions. Word has length 885 [2020-10-14 01:06:21,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:06:21,051 INFO L479 AbstractCegarLoop]: Abstraction has 10407 states and 13852 transitions. [2020-10-14 01:06:21,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:06:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 10407 states and 13852 transitions. [2020-10-14 01:06:21,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 934 [2020-10-14 01:06:21,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:06:21,090 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:21,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 01:06:21,091 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:06:21,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:06:21,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1151075307, now seen corresponding path program 1 times [2020-10-14 01:06:21,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:06:21,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478319332] [2020-10-14 01:06:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:06:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:21,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:21,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:21,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:24,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:24,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:26,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:26,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 953 [2020-10-14 01:06:26,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:06:26,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 01:06:26,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:26,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:06:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 01:06:26,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:26,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:06:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:26,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:26,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:26,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:06:26,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:26,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:06:26,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:26,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:26,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:26,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:26,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:26,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:26,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:06:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:26,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:26,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:26,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:06:26,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:26,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 01:06:26,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:26,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:26,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:06:26,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:26,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:06:26,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:26,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:06:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:26,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:26,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:26,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 01:06:26,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 01:06:26,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:26,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:26,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:26,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:06:26,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 01:06:26,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:26,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 01:06:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:26,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:26,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:26,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 01:06:26,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:26,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 01:06:26,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:26,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:26,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:26,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 01:06:26,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:26,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:26,931 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 151 proven. 42 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 01:06:26,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478319332] [2020-10-14 01:06:26,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:06:26,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:06:26,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092393725] [2020-10-14 01:06:26,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:06:26,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:06:26,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:06:26,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:06:26,934 INFO L87 Difference]: Start difference. First operand 10407 states and 13852 transitions. Second operand 7 states. [2020-10-14 01:06:37,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:06:37,745 INFO L93 Difference]: Finished difference Result 26024 states and 36396 transitions. [2020-10-14 01:06:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:06:37,746 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 933 [2020-10-14 01:06:37,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:06:37,814 INFO L225 Difference]: With dead ends: 26024 [2020-10-14 01:06:37,814 INFO L226 Difference]: Without dead ends: 15623 [2020-10-14 01:06:37,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:06:37,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15623 states. [2020-10-14 01:06:38,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15623 to 15558. [2020-10-14 01:06:38,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15558 states. [2020-10-14 01:06:38,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15558 states to 15558 states and 21031 transitions. [2020-10-14 01:06:38,182 INFO L78 Accepts]: Start accepts. Automaton has 15558 states and 21031 transitions. Word has length 933 [2020-10-14 01:06:38,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:06:38,183 INFO L479 AbstractCegarLoop]: Abstraction has 15558 states and 21031 transitions. [2020-10-14 01:06:38,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:06:38,183 INFO L276 IsEmpty]: Start isEmpty. Operand 15558 states and 21031 transitions. [2020-10-14 01:06:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 934 [2020-10-14 01:06:38,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:06:38,233 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:38,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 01:06:38,233 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:06:38,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:06:38,234 INFO L82 PathProgramCache]: Analyzing trace with hash 112264219, now seen corresponding path program 1 times [2020-10-14 01:06:38,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:06:38,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113180582] [2020-10-14 01:06:38,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:06:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:38,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:39,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:41,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:43,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:43,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 949 [2020-10-14 01:06:43,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:06:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 01:06:43,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:43,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:06:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:06:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 01:06:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:43,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:06:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:43,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:43,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:43,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:06:43,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:43,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:06:43,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:43,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:43,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:06:43,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:43,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:06:43,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:43,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:06:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:43,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:43,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:43,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 01:06:43,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 01:06:43,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:43,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:06:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 01:06:43,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:06:44,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113180582] [2020-10-14 01:06:44,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:06:44,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 01:06:44,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206932909] [2020-10-14 01:06:44,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 01:06:44,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:06:44,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 01:06:44,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 01:06:44,077 INFO L87 Difference]: Start difference. First operand 15558 states and 21031 transitions. Second operand 8 states. [2020-10-14 01:06:56,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:06:56,094 INFO L93 Difference]: Finished difference Result 46737 states and 66000 transitions. [2020-10-14 01:06:56,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 01:06:56,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 933 [2020-10-14 01:06:56,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:06:56,263 INFO L225 Difference]: With dead ends: 46737 [2020-10-14 01:06:56,264 INFO L226 Difference]: Without dead ends: 31185 [2020-10-14 01:06:56,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:06:56,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31185 states. [2020-10-14 01:06:57,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31185 to 31076. [2020-10-14 01:06:57,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31076 states. [2020-10-14 01:06:57,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31076 states to 31076 states and 42971 transitions. [2020-10-14 01:06:57,098 INFO L78 Accepts]: Start accepts. Automaton has 31076 states and 42971 transitions. Word has length 933 [2020-10-14 01:06:57,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:06:57,099 INFO L479 AbstractCegarLoop]: Abstraction has 31076 states and 42971 transitions. [2020-10-14 01:06:57,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 01:06:57,099 INFO L276 IsEmpty]: Start isEmpty. Operand 31076 states and 42971 transitions. [2020-10-14 01:06:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 937 [2020-10-14 01:06:57,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:06:57,181 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:57,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 01:06:57,182 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:06:57,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:06:57,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1900366283, now seen corresponding path program 1 times [2020-10-14 01:06:57,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:06:57,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227022195] [2020-10-14 01:06:57,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:06:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:57,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:57,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:57,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:02,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:02,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 956 [2020-10-14 01:07:02,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:07:02,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 01:07:02,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:02,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:07:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 01:07:02,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:02,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:07:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:02,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:02,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:02,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:07:02,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:02,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:07:02,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:02,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:02,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:02,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:07:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:02,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:02,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:02,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:07:02,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:02,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 01:07:02,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:02,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:02,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:07:02,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:02,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:07:02,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:02,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:07:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:02,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:02,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:02,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 01:07:02,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:02,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 01:07:02,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:02,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:02,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:02,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:07:02,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 01:07:02,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:02,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 01:07:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:02,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:02,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:02,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:07:02,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:02,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 01:07:02,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:02,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:02,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:02,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 01:07:02,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:02,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 154 proven. 57 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 01:07:03,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227022195] [2020-10-14 01:07:03,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:07:03,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:07:03,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838342483] [2020-10-14 01:07:03,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:07:03,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:07:03,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:07:03,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:07:03,012 INFO L87 Difference]: Start difference. First operand 31076 states and 42971 transitions. Second operand 7 states. [2020-10-14 01:07:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:07:12,169 INFO L93 Difference]: Finished difference Result 62233 states and 86675 transitions. [2020-10-14 01:07:12,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:07:12,170 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 936 [2020-10-14 01:07:12,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:07:12,273 INFO L225 Difference]: With dead ends: 62233 [2020-10-14 01:07:12,273 INFO L226 Difference]: Without dead ends: 31163 [2020-10-14 01:07:12,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:07:12,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31163 states. [2020-10-14 01:07:12,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31163 to 31095. [2020-10-14 01:07:12,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31095 states. [2020-10-14 01:07:12,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31095 states to 31095 states and 40193 transitions. [2020-10-14 01:07:12,889 INFO L78 Accepts]: Start accepts. Automaton has 31095 states and 40193 transitions. Word has length 936 [2020-10-14 01:07:12,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:07:12,889 INFO L479 AbstractCegarLoop]: Abstraction has 31095 states and 40193 transitions. [2020-10-14 01:07:12,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:07:12,890 INFO L276 IsEmpty]: Start isEmpty. Operand 31095 states and 40193 transitions. [2020-10-14 01:07:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2020-10-14 01:07:12,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:07:12,957 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:07:12,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 01:07:12,958 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:07:12,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:07:12,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1993669114, now seen corresponding path program 1 times [2020-10-14 01:07:12,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:07:12,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886308793] [2020-10-14 01:07:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:07:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:13,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:13,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:13,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:14,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:14,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:18,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:18,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 997 [2020-10-14 01:07:18,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:07:18,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 01:07:18,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:18,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:07:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 01:07:18,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:18,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:07:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:18,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:18,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:18,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:07:18,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:18,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:07:18,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:18,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:18,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:18,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:07:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:18,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:18,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:18,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:07:18,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:18,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 01:07:18,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:18,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:18,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:07:18,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:18,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:07:18,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:18,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:07:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:18,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:18,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:18,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 01:07:18,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:18,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 01:07:18,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:18,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:18,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:18,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:07:18,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 01:07:18,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:18,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 01:07:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:18,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:18,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:18,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 01:07:18,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:18,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 01:07:18,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:18,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:07:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:18,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:18,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 01:07:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:18,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:18,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:18,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:07:18,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:18,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 01:07:18,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:18,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 01:07:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 194 proven. 85 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 01:07:19,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886308793] [2020-10-14 01:07:19,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:07:19,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:07:19,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984259025] [2020-10-14 01:07:19,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:07:19,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:07:19,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:07:19,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:07:19,266 INFO L87 Difference]: Start difference. First operand 31095 states and 40193 transitions. Second operand 7 states. [2020-10-14 01:07:30,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:07:30,398 INFO L93 Difference]: Finished difference Result 87633 states and 115589 transitions. [2020-10-14 01:07:30,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 01:07:30,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 975 [2020-10-14 01:07:30,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:07:30,549 INFO L225 Difference]: With dead ends: 87633 [2020-10-14 01:07:30,550 INFO L226 Difference]: Without dead ends: 56544 [2020-10-14 01:07:30,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 01:07:30,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56544 states. [2020-10-14 01:07:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56544 to 56527. [2020-10-14 01:07:31,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56527 states. [2020-10-14 01:07:31,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56527 states to 56527 states and 72853 transitions. [2020-10-14 01:07:31,600 INFO L78 Accepts]: Start accepts. Automaton has 56527 states and 72853 transitions. Word has length 975 [2020-10-14 01:07:31,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:07:31,601 INFO L479 AbstractCegarLoop]: Abstraction has 56527 states and 72853 transitions. [2020-10-14 01:07:31,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:07:31,601 INFO L276 IsEmpty]: Start isEmpty. Operand 56527 states and 72853 transitions. [2020-10-14 01:07:31,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2020-10-14 01:07:31,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:07:31,685 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:07:31,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 01:07:31,686 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:07:31,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:07:31,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1799257011, now seen corresponding path program 1 times [2020-10-14 01:07:31,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:07:31,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812291151] [2020-10-14 01:07:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:07:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:31,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:31,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:32,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:34,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:36,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:36,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1047 [2020-10-14 01:07:36,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:07:36,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-14 01:07:36,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:36,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:36,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:36,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-10-14 01:07:36,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 01:07:36,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:37,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:07:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:37,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:37,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:37,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:07:37,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:37,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:07:37,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:37,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:37,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:37,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:37,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:37,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:37,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:07:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:37,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:37,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:37,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 01:07:37,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:37,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 01:07:37,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:37,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:37,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-14 01:07:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:37,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:37,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:37,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 01:07:37,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:37,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 01:07:37,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:37,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:07:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:37,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 01:07:37,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:37,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 01:07:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:37,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:37,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:37,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:07:37,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:37,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 01:07:37,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:37,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:07:37,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 01:07:37,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 313 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-14 01:07:37,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812291151] [2020-10-14 01:07:37,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:07:37,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:07:37,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073095359] [2020-10-14 01:07:37,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:07:37,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:07:37,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:07:37,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:07:37,608 INFO L87 Difference]: Start difference. First operand 56527 states and 72853 transitions. Second operand 7 states. [2020-10-14 01:07:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:07:49,165 INFO L93 Difference]: Finished difference Result 148367 states and 193965 transitions. [2020-10-14 01:07:49,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:07:49,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1027 [2020-10-14 01:07:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:07:49,425 INFO L225 Difference]: With dead ends: 148367 [2020-10-14 01:07:49,426 INFO L226 Difference]: Without dead ends: 91846 [2020-10-14 01:07:49,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:07:49,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91846 states. [2020-10-14 01:07:52,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91846 to 75793. [2020-10-14 01:07:52,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75793 states. [2020-10-14 01:07:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75793 states to 75793 states and 94627 transitions. [2020-10-14 01:07:53,081 INFO L78 Accepts]: Start accepts. Automaton has 75793 states and 94627 transitions. Word has length 1027 [2020-10-14 01:07:53,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:07:53,082 INFO L479 AbstractCegarLoop]: Abstraction has 75793 states and 94627 transitions. [2020-10-14 01:07:53,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:07:53,082 INFO L276 IsEmpty]: Start isEmpty. Operand 75793 states and 94627 transitions. [2020-10-14 01:07:53,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2020-10-14 01:07:53,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:07:53,200 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:07:53,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 01:07:53,201 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:07:53,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:07:53,202 INFO L82 PathProgramCache]: Analyzing trace with hash -317921343, now seen corresponding path program 1 times [2020-10-14 01:07:53,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:07:53,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659146789] [2020-10-14 01:07:53,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:07:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:53,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:53,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:53,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:54,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:58,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:58,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1318 [2020-10-14 01:07:58,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:07:58,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-14 01:07:58,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:58,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:58,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:58,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 214 [2020-10-14 01:07:58,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 01:07:58,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:58,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:07:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:58,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:58,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:58,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:07:58,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:58,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:07:58,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:58,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:58,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:58,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:07:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:58,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:58,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:58,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:07:58,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:58,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:07:58,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:58,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:58,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:58,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:58,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:07:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:58,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:58,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:58,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 01:07:58,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:58,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 01:07:58,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:58,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:58,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:58,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:58,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:58,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:58,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 01:07:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:58,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:58,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:58,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 01:07:58,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:58,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 01:07:58,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:58,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:58,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:07:58,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:58,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 01:07:58,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:58,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 01:07:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:58,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:59,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:59,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-14 01:07:59,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:59,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 01:07:59,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:59,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:59,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:59,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:07:59,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 01:07:59,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:59,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2020-10-14 01:07:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:59,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:59,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:59,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 01:07:59,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:59,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 01:07:59,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:59,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:59,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:59,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 01:07:59,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:59,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 699 proven. 139 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2020-10-14 01:08:00,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659146789] [2020-10-14 01:08:00,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:08:00,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:08:00,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115020059] [2020-10-14 01:08:00,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:08:00,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:08:00,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:08:00,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:08:00,005 INFO L87 Difference]: Start difference. First operand 75793 states and 94627 transitions. Second operand 7 states. [2020-10-14 01:08:10,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:08:10,622 INFO L93 Difference]: Finished difference Result 174479 states and 219754 transitions. [2020-10-14 01:08:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:08:10,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1294 [2020-10-14 01:08:10,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:08:10,858 INFO L225 Difference]: With dead ends: 174479 [2020-10-14 01:08:10,858 INFO L226 Difference]: Without dead ends: 98692 [2020-10-14 01:08:10,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 01:08:11,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98692 states. [2020-10-14 01:08:12,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98692 to 97727. [2020-10-14 01:08:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97727 states. [2020-10-14 01:08:12,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97727 states to 97727 states and 119189 transitions. [2020-10-14 01:08:12,499 INFO L78 Accepts]: Start accepts. Automaton has 97727 states and 119189 transitions. Word has length 1294 [2020-10-14 01:08:12,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:08:12,501 INFO L479 AbstractCegarLoop]: Abstraction has 97727 states and 119189 transitions. [2020-10-14 01:08:12,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:08:12,501 INFO L276 IsEmpty]: Start isEmpty. Operand 97727 states and 119189 transitions. [2020-10-14 01:08:12,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1831 [2020-10-14 01:08:12,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:08:12,705 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:08:12,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 01:08:12,706 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:08:12,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:08:12,707 INFO L82 PathProgramCache]: Analyzing trace with hash 562410170, now seen corresponding path program 1 times [2020-10-14 01:08:12,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:08:12,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865430495] [2020-10-14 01:08:12,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:08:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:13,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:13,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:13,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:14,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:14,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:18,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:18,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1860 [2020-10-14 01:08:18,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:08:18,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-10-14 01:08:18,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:18,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:08:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 913 [2020-10-14 01:08:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-14 01:08:18,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:19,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:08:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:19,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:19,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:19,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:08:19,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:19,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:08:19,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:19,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:19,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:19,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:19,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:08:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:19,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:19,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:19,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:08:19,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:19,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 01:08:19,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:19,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:19,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:19,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:19,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:19,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:19,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:08:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:19,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:19,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:19,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 01:08:19,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:19,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 01:08:19,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:19,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:19,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:19,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 01:08:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:19,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:19,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:19,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 01:08:19,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 01:08:19,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:19,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:19,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:19,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 01:08:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:19,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:19,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:19,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 01:08:19,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:19,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 01:08:19,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:19,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:08:19,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-14 01:08:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:19,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:19,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:19,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 570 [2020-10-14 01:08:19,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:19,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-14 01:08:19,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:19,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:08:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 558 [2020-10-14 01:08:19,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:19,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 01:08:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:20,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:20,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:20,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-14 01:08:20,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:20,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 01:08:20,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:20,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:20,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:08:20,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 334 [2020-10-14 01:08:20,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:20,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 01:08:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:20,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:20,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:20,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 01:08:20,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:20,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 01:08:20,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:20,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:20,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:08:20,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:20,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 01:08:20,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:20,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 905 [2020-10-14 01:08:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:20,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:20,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:20,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 01:08:20,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:20,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 01:08:20,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:20,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:08:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:08:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 01:08:20,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:24,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2128 backedges. 1490 proven. 2 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2020-10-14 01:08:24,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865430495] [2020-10-14 01:08:24,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:08:24,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:08:24,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719372591] [2020-10-14 01:08:24,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:08:24,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:08:24,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:08:24,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:08:24,087 INFO L87 Difference]: Start difference. First operand 97727 states and 119189 transitions. Second operand 7 states.