/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/Problem18_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:22:49,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:22:49,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:22:49,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:22:49,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:22:49,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:22:49,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:22:49,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:22:49,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:22:49,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:22:49,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:22:49,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:22:49,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:22:49,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:22:49,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:22:49,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:22:49,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:22:49,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:22:49,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:22:49,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:22:49,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:22:49,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:22:49,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:22:49,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:22:49,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:22:49,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:22:49,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:22:49,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:22:49,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:22:49,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:22:49,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:22:49,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:22:49,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:22:49,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:22:49,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:22:49,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:22:49,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:22:49,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:22:49,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:22:49,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:22:49,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:22:49,545 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 04:22:49,592 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:22:49,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:22:49,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:22:49,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:22:49,596 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:22:49,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:22:49,596 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:22:49,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:22:49,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:22:49,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:22:49,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:22:49,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:22:49,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:22:49,597 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:22:49,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:22:49,598 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:22:49,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:22:49,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:22:49,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:22:49,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:22:49,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:22:49,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:22:49,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:22:49,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:22:49,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:22:49,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:22:49,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:22:49,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:22:49,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:22:49,602 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 04:22:49,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:22:49,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:22:49,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:22:49,919 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:22:49,920 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:22:49,921 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label50.c [2020-10-14 04:22:49,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e09d582b/b0fc6d67ebd544cfbda4492f4caf90a4/FLAGa1488e075 [2020-10-14 04:22:50,728 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:22:50,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label50.c [2020-10-14 04:22:50,766 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e09d582b/b0fc6d67ebd544cfbda4492f4caf90a4/FLAGa1488e075 [2020-10-14 04:22:51,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e09d582b/b0fc6d67ebd544cfbda4492f4caf90a4 [2020-10-14 04:22:51,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:22:51,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:22:51,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:22:51,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:22:51,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:22:51,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:22:51" (1/1) ... [2020-10-14 04:22:51,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:51, skipping insertion in model container [2020-10-14 04:22:51,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:22:51" (1/1) ... [2020-10-14 04:22:51,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:22:51,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:22:52,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:22:52,642 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:22:53,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:22:53,171 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:22:53,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:53 WrapperNode [2020-10-14 04:22:53,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:22:53,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:22:53,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:22:53,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:22:53,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:53" (1/1) ... [2020-10-14 04:22:53,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:53" (1/1) ... [2020-10-14 04:22:53,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:53" (1/1) ... [2020-10-14 04:22:53,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:53" (1/1) ... [2020-10-14 04:22:53,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:53" (1/1) ... [2020-10-14 04:22:53,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:53" (1/1) ... [2020-10-14 04:22:53,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:53" (1/1) ... [2020-10-14 04:22:53,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:22:53,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:22:53,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:22:53,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:22:53,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:53" (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 04:22:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:22:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:22:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:22:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:22:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 04:22:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:22:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:22:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:22:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 04:22:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:22:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:22:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:22:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:22:53,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:22:53,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:23:00,023 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:23:00,023 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:23:00,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:23:00 BoogieIcfgContainer [2020-10-14 04:23:00,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:23:00,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:23:00,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:23:00,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:23:00,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:22:51" (1/3) ... [2020-10-14 04:23:00,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5101f746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:23:00, skipping insertion in model container [2020-10-14 04:23:00,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:53" (2/3) ... [2020-10-14 04:23:00,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5101f746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:23:00, skipping insertion in model container [2020-10-14 04:23:00,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:23:00" (3/3) ... [2020-10-14 04:23:00,045 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label50.c [2020-10-14 04:23:00,056 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:23:00,065 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:23:00,082 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:23:00,114 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:23:00,114 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:23:00,114 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:23:00,115 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:23:00,115 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:23:00,115 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:23:00,115 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:23:00,115 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:23:00,153 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 04:23:00,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 04:23:00,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:23:00,167 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] [2020-10-14 04:23:00,168 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:23:00,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:23:00,176 INFO L82 PathProgramCache]: Analyzing trace with hash 118737362, now seen corresponding path program 1 times [2020-10-14 04:23:00,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:23:00,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586474409] [2020-10-14 04:23:00,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:23:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:00,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:00,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:00,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 04:23:00,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:00,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-10-14 04:23:00,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:00,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:23:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:23:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:23:00,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:23:00,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:23:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:00,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:01,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:01,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:23:01,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:23:01,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:01,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:23:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:23:01,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:01,026 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 04:23:01,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586474409] [2020-10-14 04:23:01,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:23:01,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:23:01,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227850727] [2020-10-14 04:23:01,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:23:01,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:23:01,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:23:01,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:23:01,057 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 5 states. [2020-10-14 04:23:12,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:23:12,637 INFO L93 Difference]: Finished difference Result 2984 states and 5767 transitions. [2020-10-14 04:23:12,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:23:12,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-10-14 04:23:12,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:23:12,674 INFO L225 Difference]: With dead ends: 2984 [2020-10-14 04:23:12,675 INFO L226 Difference]: Without dead ends: 2142 [2020-10-14 04:23:12,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:23:12,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-14 04:23:12,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2135. [2020-10-14 04:23:12,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-10-14 04:23:12,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3227 transitions. [2020-10-14 04:23:12,866 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3227 transitions. Word has length 69 [2020-10-14 04:23:12,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:23:12,867 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 3227 transitions. [2020-10-14 04:23:12,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:23:12,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3227 transitions. [2020-10-14 04:23:12,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-14 04:23:12,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:23:12,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:23:12,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:23:12,875 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:23:12,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:23:12,876 INFO L82 PathProgramCache]: Analyzing trace with hash 2115577750, now seen corresponding path program 1 times [2020-10-14 04:23:12,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:23:12,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347929399] [2020-10-14 04:23:12,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:23:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:12,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:13,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:13,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:14,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:14,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 04:23:14,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:23:14,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1700 [2020-10-14 04:23:14,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:14,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:14,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:23:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 04:23:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 04:23:14,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:23:14,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:23:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:14,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:14,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:14,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:23:14,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:14,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:23:14,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:14,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:23:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:23:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:14,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:23:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:14,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:14,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:14,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:23:14,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:14,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 04:23:14,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:14,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:23:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:23:14,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:23:14,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347929399] [2020-10-14 04:23:14,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:23:14,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:23:14,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793587259] [2020-10-14 04:23:14,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:23:14,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:23:14,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:23:14,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:23:14,882 INFO L87 Difference]: Start difference. First operand 2135 states and 3227 transitions. Second operand 5 states. [2020-10-14 04:23:23,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:23:23,245 INFO L93 Difference]: Finished difference Result 6403 states and 9766 transitions. [2020-10-14 04:23:23,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:23:23,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-10-14 04:23:23,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:23:23,274 INFO L225 Difference]: With dead ends: 6403 [2020-10-14 04:23:23,274 INFO L226 Difference]: Without dead ends: 4274 [2020-10-14 04:23:23,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:23:23,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4274 states. [2020-10-14 04:23:23,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4274 to 4270. [2020-10-14 04:23:23,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4270 states. [2020-10-14 04:23:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4270 states to 4270 states and 5887 transitions. [2020-10-14 04:23:23,389 INFO L78 Accepts]: Start accepts. Automaton has 4270 states and 5887 transitions. Word has length 139 [2020-10-14 04:23:23,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:23:23,390 INFO L479 AbstractCegarLoop]: Abstraction has 4270 states and 5887 transitions. [2020-10-14 04:23:23,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:23:23,390 INFO L276 IsEmpty]: Start isEmpty. Operand 4270 states and 5887 transitions. [2020-10-14 04:23:23,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-14 04:23:23,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:23:23,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:23:23,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:23:23,395 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:23:23,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:23:23,395 INFO L82 PathProgramCache]: Analyzing trace with hash -882819362, now seen corresponding path program 1 times [2020-10-14 04:23:23,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:23:23,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537865579] [2020-10-14 04:23:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:23:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:23,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:23,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:24,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:24,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 04:23:24,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:23:24,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 632 [2020-10-14 04:23:24,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:24,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:24,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:23:24,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 04:23:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 04:23:24,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:23:24,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:23:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:24,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:24,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:24,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:23:24,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:24,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:23:24,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:24,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:24,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:23:24,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:23:24,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:23:24,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:23:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:24,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:24,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:24,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:23:24,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:24,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 04:23:24,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:24,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:23:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:24,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 04:23:24,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:24,398 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:23:24,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537865579] [2020-10-14 04:23:24,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:23:24,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:23:24,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107242455] [2020-10-14 04:23:24,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:23:24,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:23:24,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:23:24,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:23:24,402 INFO L87 Difference]: Start difference. First operand 4270 states and 5887 transitions. Second operand 5 states. [2020-10-14 04:23:32,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:23:32,825 INFO L93 Difference]: Finished difference Result 11381 states and 15956 transitions. [2020-10-14 04:23:32,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:23:32,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-14 04:23:32,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:23:32,872 INFO L225 Difference]: With dead ends: 11381 [2020-10-14 04:23:32,872 INFO L226 Difference]: Without dead ends: 7117 [2020-10-14 04:23:32,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:23:32,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7117 states. [2020-10-14 04:23:33,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7117 to 7113. [2020-10-14 04:23:33,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7113 states. [2020-10-14 04:23:33,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7113 states to 7113 states and 9239 transitions. [2020-10-14 04:23:33,081 INFO L78 Accepts]: Start accepts. Automaton has 7113 states and 9239 transitions. Word has length 143 [2020-10-14 04:23:33,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:23:33,082 INFO L479 AbstractCegarLoop]: Abstraction has 7113 states and 9239 transitions. [2020-10-14 04:23:33,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:23:33,082 INFO L276 IsEmpty]: Start isEmpty. Operand 7113 states and 9239 transitions. [2020-10-14 04:23:33,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 04:23:33,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:23:33,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:33,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:23:33,090 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:23:33,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:23:33,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1328569434, now seen corresponding path program 1 times [2020-10-14 04:23:33,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:23:33,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590294404] [2020-10-14 04:23:33,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:23:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:33,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:33,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:33,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:34,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:34,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 04:23:34,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:23:34,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1093 [2020-10-14 04:23:34,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:34,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:34,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:23:34,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 04:23:34,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 04:23:34,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:34,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:23:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:34,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:34,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:34,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:23:34,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:23:34,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:34,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:23:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:23:34,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:34,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:23:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:34,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:34,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:34,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:23:34,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:34,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 04:23:34,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:34,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:34,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:23:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 04:23:34,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:23:34,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590294404] [2020-10-14 04:23:34,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:23:34,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:23:34,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462556351] [2020-10-14 04:23:34,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:23:34,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:23:34,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:23:34,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:23:34,603 INFO L87 Difference]: Start difference. First operand 7113 states and 9239 transitions. Second operand 5 states. [2020-10-14 04:23:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:23:43,550 INFO L93 Difference]: Finished difference Result 17775 states and 23767 transitions. [2020-10-14 04:23:43,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:23:43,557 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-14 04:23:43,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:23:43,604 INFO L225 Difference]: With dead ends: 17775 [2020-10-14 04:23:43,604 INFO L226 Difference]: Without dead ends: 10668 [2020-10-14 04:23:43,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:23:43,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10668 states. [2020-10-14 04:23:43,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10668 to 10660. [2020-10-14 04:23:43,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10660 states. [2020-10-14 04:23:43,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 13863 transitions. [2020-10-14 04:23:43,912 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 13863 transitions. Word has length 157 [2020-10-14 04:23:43,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:23:43,913 INFO L479 AbstractCegarLoop]: Abstraction has 10660 states and 13863 transitions. [2020-10-14 04:23:43,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:23:43,913 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 13863 transitions. [2020-10-14 04:23:43,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-14 04:23:43,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:23:43,920 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:43,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:23:43,921 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:23:43,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:23:43,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1292965438, now seen corresponding path program 1 times [2020-10-14 04:23:43,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:23:43,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949559232] [2020-10-14 04:23:43,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:23:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:43,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:44,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:45,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:45,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 04:23:45,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:23:45,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1294 [2020-10-14 04:23:45,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:45,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:45,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:23:45,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:23:45,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 04:23:45,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:45,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:23:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:45,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:45,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:45,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:23:45,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:45,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:23:45,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:45,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:45,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:23:45,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:45,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:23:45,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:45,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:23:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:45,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:45,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:45,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:23:45,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:45,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 04:23:45,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:45,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:23:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:23:45,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:45,559 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:23:45,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949559232] [2020-10-14 04:23:45,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:23:45,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:23:45,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957632450] [2020-10-14 04:23:45,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:23:45,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:23:45,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:23:45,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:23:45,562 INFO L87 Difference]: Start difference. First operand 10660 states and 13863 transitions. Second operand 5 states. [2020-10-14 04:23:54,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:23:54,915 INFO L93 Difference]: Finished difference Result 27697 states and 36997 transitions. [2020-10-14 04:23:54,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:23:54,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2020-10-14 04:23:54,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:23:54,995 INFO L225 Difference]: With dead ends: 27697 [2020-10-14 04:23:54,995 INFO L226 Difference]: Without dead ends: 17043 [2020-10-14 04:23:55,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:23:55,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17043 states. [2020-10-14 04:23:55,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17043 to 17035. [2020-10-14 04:23:55,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17035 states. [2020-10-14 04:23:55,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17035 states to 17035 states and 21658 transitions. [2020-10-14 04:23:55,491 INFO L78 Accepts]: Start accepts. Automaton has 17035 states and 21658 transitions. Word has length 191 [2020-10-14 04:23:55,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:23:55,491 INFO L479 AbstractCegarLoop]: Abstraction has 17035 states and 21658 transitions. [2020-10-14 04:23:55,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:23:55,492 INFO L276 IsEmpty]: Start isEmpty. Operand 17035 states and 21658 transitions. [2020-10-14 04:23:55,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-14 04:23:55,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:23:55,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:55,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:23:55,499 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:23:55,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:23:55,499 INFO L82 PathProgramCache]: Analyzing trace with hash 222562706, now seen corresponding path program 1 times [2020-10-14 04:23:55,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:23:55,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92693491] [2020-10-14 04:23:55,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:23:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:55,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:55,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:56,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:56,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:56,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-14 04:23:56,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:23:56,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1405 [2020-10-14 04:23:56,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:56,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:56,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:23:56,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 04:23:56,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 04:23:56,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:57,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:23:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:57,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:57,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:57,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:23:57,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:57,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:23:57,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:57,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:57,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:23:57,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:57,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:23:57,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:57,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:23:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:23:57,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:23:57,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:23:57,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 04:23:57,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:23:57,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 04:23:57,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:23:57,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:23:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:23:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:23:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 04:23:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:23:57,282 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:23:57,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92693491] [2020-10-14 04:23:57,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:23:57,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:23:57,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714314834] [2020-10-14 04:23:57,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:23:57,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:23:57,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:23:57,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:23:57,286 INFO L87 Difference]: Start difference. First operand 17035 states and 21658 transitions. Second operand 5 states. [2020-10-14 04:24:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:24:06,988 INFO L93 Difference]: Finished difference Result 38330 states and 49938 transitions. [2020-10-14 04:24:06,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:24:06,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2020-10-14 04:24:06,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:24:07,055 INFO L225 Difference]: With dead ends: 38330 [2020-10-14 04:24:07,055 INFO L226 Difference]: Without dead ends: 21301 [2020-10-14 04:24:07,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:24:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21301 states. [2020-10-14 04:24:07,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21301 to 21293. [2020-10-14 04:24:07,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21293 states. [2020-10-14 04:24:07,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21293 states to 21293 states and 26879 transitions. [2020-10-14 04:24:07,517 INFO L78 Accepts]: Start accepts. Automaton has 21293 states and 26879 transitions. Word has length 217 [2020-10-14 04:24:07,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:24:07,518 INFO L479 AbstractCegarLoop]: Abstraction has 21293 states and 26879 transitions. [2020-10-14 04:24:07,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:24:07,518 INFO L276 IsEmpty]: Start isEmpty. Operand 21293 states and 26879 transitions. [2020-10-14 04:24:07,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2020-10-14 04:24:07,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:24:07,572 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:07,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:24:07,572 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:24:07,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:24:07,573 INFO L82 PathProgramCache]: Analyzing trace with hash -264533799, now seen corresponding path program 1 times [2020-10-14 04:24:07,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:24:07,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757121203] [2020-10-14 04:24:07,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:24:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:07,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:07,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:08,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:12,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:12,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:12,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 563 [2020-10-14 04:24:12,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:24:12,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 04:24:12,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:12,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:24:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 491 [2020-10-14 04:24:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:24:12,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:24:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:12,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:12,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:12,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:24:12,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:12,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:24:12,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:12,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:12,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:12,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:24:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:12,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:12,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:12,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:24:12,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:12,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 04:24:12,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:12,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:12,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:12,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 04:24:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:12,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:13,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:13,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 395 [2020-10-14 04:24:13,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-14 04:24:13,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:13,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 386 [2020-10-14 04:24:13,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:13,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:24:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:13,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:13,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:13,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 04:24:13,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:13,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 04:24:13,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:13,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:13,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 04:24:13,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:14,026 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-14 04:24:14,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757121203] [2020-10-14 04:24:14,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:24:14,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:24:14,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033408071] [2020-10-14 04:24:14,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:24:14,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:24:14,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:24:14,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:24:14,032 INFO L87 Difference]: Start difference. First operand 21293 states and 26879 transitions. Second operand 5 states. [2020-10-14 04:24:23,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:24:23,817 INFO L93 Difference]: Finished difference Result 60294 states and 77788 transitions. [2020-10-14 04:24:23,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:24:23,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 549 [2020-10-14 04:24:23,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:24:23,932 INFO L225 Difference]: With dead ends: 60294 [2020-10-14 04:24:23,933 INFO L226 Difference]: Without dead ends: 39007 [2020-10-14 04:24:23,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:24:24,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39007 states. [2020-10-14 04:24:25,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39007 to 39003. [2020-10-14 04:24:25,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39003 states. [2020-10-14 04:24:25,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39003 states to 39003 states and 48362 transitions. [2020-10-14 04:24:25,630 INFO L78 Accepts]: Start accepts. Automaton has 39003 states and 48362 transitions. Word has length 549 [2020-10-14 04:24:25,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:24:25,631 INFO L479 AbstractCegarLoop]: Abstraction has 39003 states and 48362 transitions. [2020-10-14 04:24:25,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:24:25,631 INFO L276 IsEmpty]: Start isEmpty. Operand 39003 states and 48362 transitions. [2020-10-14 04:24:25,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2020-10-14 04:24:25,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:24:25,700 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:24:25,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:24:25,700 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:24:25,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:24:25,701 INFO L82 PathProgramCache]: Analyzing trace with hash 377618853, now seen corresponding path program 1 times [2020-10-14 04:24:25,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:24:25,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103597351] [2020-10-14 04:24:25,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:24:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:25,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:26,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:28,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:30,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:30,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:30,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 609 [2020-10-14 04:24:30,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:24:30,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 04:24:30,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:30,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:24:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 04:24:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:24:30,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:30,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:24:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:30,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:30,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:30,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:24:30,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:30,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:24:30,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:30,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:30,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:30,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:24:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:31,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:31,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:31,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:24:31,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:31,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 04:24:31,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:31,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:31,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:31,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:31,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:31,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:31,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:24:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:31,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:31,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:31,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 407 [2020-10-14 04:24:31,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:31,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-14 04:24:31,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:31,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:31,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 398 [2020-10-14 04:24:31,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:31,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:24:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:31,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:31,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:31,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 04:24:31,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:31,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 04:24:31,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:31,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:31,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 04:24:31,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:32,226 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-14 04:24:32,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103597351] [2020-10-14 04:24:32,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:24:32,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:24:32,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002497752] [2020-10-14 04:24:32,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:24:32,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:24:32,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:24:32,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:24:32,229 INFO L87 Difference]: Start difference. First operand 39003 states and 48362 transitions. Second operand 5 states. [2020-10-14 04:24:43,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:24:43,086 INFO L93 Difference]: Finished difference Result 92851 states and 118033 transitions. [2020-10-14 04:24:43,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:24:43,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 595 [2020-10-14 04:24:43,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:24:43,268 INFO L225 Difference]: With dead ends: 92851 [2020-10-14 04:24:43,268 INFO L226 Difference]: Without dead ends: 53854 [2020-10-14 04:24:43,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:24:43,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53854 states. [2020-10-14 04:24:44,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53854 to 53850. [2020-10-14 04:24:44,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53850 states. [2020-10-14 04:24:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53850 states to 53850 states and 65093 transitions. [2020-10-14 04:24:44,082 INFO L78 Accepts]: Start accepts. Automaton has 53850 states and 65093 transitions. Word has length 595 [2020-10-14 04:24:44,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:24:44,083 INFO L479 AbstractCegarLoop]: Abstraction has 53850 states and 65093 transitions. [2020-10-14 04:24:44,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:24:44,084 INFO L276 IsEmpty]: Start isEmpty. Operand 53850 states and 65093 transitions. [2020-10-14 04:24:44,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2020-10-14 04:24:44,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:24:44,154 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:24:44,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:24:44,155 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:24:44,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:24:44,155 INFO L82 PathProgramCache]: Analyzing trace with hash 699488097, now seen corresponding path program 1 times [2020-10-14 04:24:44,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:24:44,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496050024] [2020-10-14 04:24:44,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:24:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:44,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:44,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:44,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:49,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:49,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 652 [2020-10-14 04:24:49,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:24:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 04:24:49,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:49,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:24:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 04:24:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 439 [2020-10-14 04:24:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:24:49,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:24:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:49,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:49,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:49,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:24:49,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:49,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:24:49,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:49,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:49,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:49,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:49,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:49,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:24:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:49,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:49,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:49,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 04:24:49,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:49,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 04:24:49,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:49,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:49,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:49,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:49,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 04:24:49,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:49,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 04:24:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:49,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:50,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:50,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 04:24:50,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:50,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 738 [2020-10-14 04:24:50,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:50,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:24:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:24:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 440 [2020-10-14 04:24:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:50,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:24:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:50,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:51,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:51,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 04:24:51,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:51,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-14 04:24:51,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:51,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:51,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:24:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:24:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 04:24:51,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:24:51,494 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 253 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:24:51,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496050024] [2020-10-14 04:24:51,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:24:51,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:24:51,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913893245] [2020-10-14 04:24:51,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:24:51,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:24:51,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:24:51,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:24:51,498 INFO L87 Difference]: Start difference. First operand 53850 states and 65093 transitions. Second operand 8 states. [2020-10-14 04:25:07,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:25:07,715 INFO L93 Difference]: Finished difference Result 120681 states and 149690 transitions. [2020-10-14 04:25:07,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 04:25:07,716 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 638 [2020-10-14 04:25:07,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:25:07,916 INFO L225 Difference]: With dead ends: 120681 [2020-10-14 04:25:07,916 INFO L226 Difference]: Without dead ends: 66837 [2020-10-14 04:25:07,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:25:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66837 states. [2020-10-14 04:25:08,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66837 to 66793. [2020-10-14 04:25:08,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66793 states. [2020-10-14 04:25:09,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66793 states to 66793 states and 81835 transitions. [2020-10-14 04:25:09,019 INFO L78 Accepts]: Start accepts. Automaton has 66793 states and 81835 transitions. Word has length 638 [2020-10-14 04:25:09,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:25:09,020 INFO L479 AbstractCegarLoop]: Abstraction has 66793 states and 81835 transitions. [2020-10-14 04:25:09,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:25:09,021 INFO L276 IsEmpty]: Start isEmpty. Operand 66793 states and 81835 transitions. [2020-10-14 04:25:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2020-10-14 04:25:09,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:25:09,065 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:25:09,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:25:09,066 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:25:09,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:25:09,066 INFO L82 PathProgramCache]: Analyzing trace with hash -929010111, now seen corresponding path program 1 times [2020-10-14 04:25:09,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:25:09,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069244716] [2020-10-14 04:25:09,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:25:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:09,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:09,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:09,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:14,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:14,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 668 [2020-10-14 04:25:14,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:25:14,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 04:25:14,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:14,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:14,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:14,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 04:25:14,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 04:25:14,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:14,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:25:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:14,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:14,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:14,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:25:14,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:14,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:25:14,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:14,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:14,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:14,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:14,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:14,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:14,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:25:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:14,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:14,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:14,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 04:25:14,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:14,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 04:25:14,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:14,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:14,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:14,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:14,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 04:25:14,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:14,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-14 04:25:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:14,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:14,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:15,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:15,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 04:25:15,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:25:15,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 846 [2020-10-14 04:25:15,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:15,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:15,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:15,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 440 [2020-10-14 04:25:15,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:15,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:25:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:15,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:15,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:15,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 04:25:15,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:15,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 04:25:15,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:15,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:15,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:15,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-14 04:25:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:16,820 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 269 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:25:16,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069244716] [2020-10-14 04:25:16,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:25:16,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:25:16,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970349128] [2020-10-14 04:25:16,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:25:16,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:25:16,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:25:16,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:25:16,823 INFO L87 Difference]: Start difference. First operand 66793 states and 81835 transitions. Second operand 6 states. [2020-10-14 04:25:25,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:25:25,835 INFO L93 Difference]: Finished difference Result 133637 states and 163850 transitions. [2020-10-14 04:25:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:25:25,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 654 [2020-10-14 04:25:25,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:25:26,053 INFO L225 Difference]: With dead ends: 133637 [2020-10-14 04:25:26,053 INFO L226 Difference]: Without dead ends: 66822 [2020-10-14 04:25:26,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:25:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66822 states. [2020-10-14 04:25:27,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66822 to 66793. [2020-10-14 04:25:27,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66793 states. [2020-10-14 04:25:27,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66793 states to 66793 states and 81779 transitions. [2020-10-14 04:25:27,256 INFO L78 Accepts]: Start accepts. Automaton has 66793 states and 81779 transitions. Word has length 654 [2020-10-14 04:25:27,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:25:27,257 INFO L479 AbstractCegarLoop]: Abstraction has 66793 states and 81779 transitions. [2020-10-14 04:25:27,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:25:27,257 INFO L276 IsEmpty]: Start isEmpty. Operand 66793 states and 81779 transitions. [2020-10-14 04:25:27,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2020-10-14 04:25:27,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:25:27,327 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 04:25:27,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:25:27,328 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:25:27,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:25:27,328 INFO L82 PathProgramCache]: Analyzing trace with hash 130923973, now seen corresponding path program 1 times [2020-10-14 04:25:27,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:25:27,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289332881] [2020-10-14 04:25:27,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:25:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:27,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:27,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:28,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:28,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:30,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:32,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:32,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 672 [2020-10-14 04:25:32,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:25:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 04:25:32,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:32,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 04:25:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 04:25:32,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:32,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:25:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:32,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:32,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:32,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:25:32,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:32,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:25:32,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:32,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:32,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:32,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:25:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:32,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:32,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 04:25:32,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:32,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 04:25:32,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:32,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:32,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:32,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:32,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:25:32,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:32,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 04:25:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:32,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:32,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:32,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:25:32,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 04:25:32,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:32,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 04:25:32,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:32,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 04:25:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:32,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:32,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:32,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 04:25:32,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:32,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 04:25:32,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:32,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 437 [2020-10-14 04:25:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:32,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:32,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:25:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:32,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:33,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:33,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 04:25:33,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:33,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 04:25:33,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:33,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:33,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:33,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:33,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:33,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:33,492 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 261 proven. 73 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-14 04:25:33,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289332881] [2020-10-14 04:25:33,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:25:33,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:25:33,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366651534] [2020-10-14 04:25:33,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:25:33,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:25:33,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:25:33,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:25:33,495 INFO L87 Difference]: Start difference. First operand 66793 states and 81779 transitions. Second operand 7 states. [2020-10-14 04:25:45,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:25:45,736 INFO L93 Difference]: Finished difference Result 133772 states and 164503 transitions. [2020-10-14 04:25:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:25:45,737 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 656 [2020-10-14 04:25:45,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:25:45,919 INFO L225 Difference]: With dead ends: 133772 [2020-10-14 04:25:45,919 INFO L226 Difference]: Without dead ends: 62728 [2020-10-14 04:25:46,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 04:25:46,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62728 states. [2020-10-14 04:25:46,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62728 to 55654. [2020-10-14 04:25:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55654 states. [2020-10-14 04:25:46,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55654 states to 55654 states and 63266 transitions. [2020-10-14 04:25:46,845 INFO L78 Accepts]: Start accepts. Automaton has 55654 states and 63266 transitions. Word has length 656 [2020-10-14 04:25:46,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:25:46,846 INFO L479 AbstractCegarLoop]: Abstraction has 55654 states and 63266 transitions. [2020-10-14 04:25:46,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:25:46,846 INFO L276 IsEmpty]: Start isEmpty. Operand 55654 states and 63266 transitions. [2020-10-14 04:25:46,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2020-10-14 04:25:46,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:25:46,881 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:25:46,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:25:46,882 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:25:46,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:25:46,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1539891296, now seen corresponding path program 1 times [2020-10-14 04:25:46,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:25:46,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068155534] [2020-10-14 04:25:46,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:25:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:46,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:47,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:49,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:52,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:52,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 717 [2020-10-14 04:25:52,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:25:52,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 04:25:52,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:52,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:52,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:52,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:25:52,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 04:25:52,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:52,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:25:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:52,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:52,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:52,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:25:52,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:52,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:25:52,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:52,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:52,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:52,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:52,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:25:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:52,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:52,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:52,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:25:52,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 04:25:52,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:52,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:25:52,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:52,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:25:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:52,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:52,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:52,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:25:52,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:52,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 04:25:52,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:52,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 04:25:52,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:52,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 04:25:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:52,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:52,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:52,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 04:25:52,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:52,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 04:25:52,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:52,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:52,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:52,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 437 [2020-10-14 04:25:52,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:52,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:52,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:25:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:52,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:52,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:52,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 04:25:52,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:52,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 04:25:52,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:52,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:52,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:52,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:52,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:52,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:25:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 260 proven. 72 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-10-14 04:25:52,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068155534] [2020-10-14 04:25:52,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:25:52,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:25:52,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592520791] [2020-10-14 04:25:52,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:25:52,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:25:52,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:25:52,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:25:52,900 INFO L87 Difference]: Start difference. First operand 55654 states and 63266 transitions. Second operand 7 states. [2020-10-14 04:26:05,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:26:05,767 INFO L93 Difference]: Finished difference Result 116328 states and 132190 transitions. [2020-10-14 04:26:05,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:26:05,769 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 701 [2020-10-14 04:26:05,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:26:05,920 INFO L225 Difference]: With dead ends: 116328 [2020-10-14 04:26:05,920 INFO L226 Difference]: Without dead ends: 55664 [2020-10-14 04:26:05,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:26:06,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55664 states. [2020-10-14 04:26:06,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55664 to 55628. [2020-10-14 04:26:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55628 states. [2020-10-14 04:26:06,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55628 states to 55628 states and 58783 transitions. [2020-10-14 04:26:06,996 INFO L78 Accepts]: Start accepts. Automaton has 55628 states and 58783 transitions. Word has length 701 [2020-10-14 04:26:06,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:26:06,997 INFO L479 AbstractCegarLoop]: Abstraction has 55628 states and 58783 transitions. [2020-10-14 04:26:06,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:26:06,998 INFO L276 IsEmpty]: Start isEmpty. Operand 55628 states and 58783 transitions. [2020-10-14 04:26:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2020-10-14 04:26:07,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:26:07,029 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:26:07,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:26:07,030 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:26:07,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:26:07,031 INFO L82 PathProgramCache]: Analyzing trace with hash 628550177, now seen corresponding path program 1 times [2020-10-14 04:26:07,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:26:07,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402624437] [2020-10-14 04:26:07,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:26:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:07,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:07,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:08,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:08,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:09,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:12,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:12,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 836 [2020-10-14 04:26:12,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:26:12,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 04:26:12,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:12,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:26:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 04:26:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 04:26:12,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:12,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:26:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:12,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:12,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:12,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:26:12,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:12,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:26:12,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:12,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:12,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:12,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:26:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:12,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:12,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:12,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 04:26:12,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:12,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 04:26:12,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:12,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:26:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:26:12,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:12,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 04:26:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:12,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:12,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:12,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 04:26:12,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:12,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 04:26:12,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:12,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:12,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:26:12,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:26:12,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 04:26:12,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:12,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-14 04:26:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:12,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:12,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:12,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:26:12,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:12,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 04:26:12,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:12,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:12,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 04:26:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:12,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:12,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-10-14 04:26:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:12,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:12,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:12,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:26:12,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:12,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 04:26:12,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:12,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 04:26:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:12,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:12,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-14 04:26:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:12,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:12,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:12,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 04:26:12,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:12,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 04:26:12,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:12,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:12,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:12,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 437 [2020-10-14 04:26:12,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:12,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:12,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:26:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:12,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:12,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:12,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 04:26:12,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:12,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 04:26:12,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:12,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:12,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 395 proven. 227 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2020-10-14 04:26:13,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402624437] [2020-10-14 04:26:13,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:26:13,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:26:13,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035428489] [2020-10-14 04:26:13,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:26:13,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:26:13,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:26:13,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:26:13,060 INFO L87 Difference]: Start difference. First operand 55628 states and 58783 transitions. Second operand 7 states.