/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=BIGGEST --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/Problem16_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:33:14,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:33:14,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:33:14,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:33:14,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:33:14,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:33:14,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:33:14,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:33:14,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:33:14,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:33:14,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:33:14,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:33:14,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:33:14,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:33:14,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:33:14,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:33:14,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:33:14,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:33:14,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:33:14,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:33:14,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:33:14,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:33:14,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:33:14,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:33:14,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:33:14,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:33:14,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:33:14,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:33:14,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:33:14,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:33:14,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:33:14,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:33:14,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:33:14,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:33:14,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:33:14,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:33:14,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:33:14,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:33:14,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:33:14,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:33:14,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:33:14,599 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 [2020-10-12 14:33:14,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:33:14,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:33:14,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:33:14,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:33:14,623 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:33:14,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:33:14,623 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:33:14,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:33:14,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:33:14,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:33:14,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:33:14,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:33:14,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:33:14,624 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:33:14,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:33:14,625 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:33:14,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:33:14,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:33:14,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:33:14,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:33:14,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:33:14,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:33:14,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:33:14,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:33:14,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:33:14,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:33:14,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:33:14,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:33:14,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:33:14,627 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:33:14,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:33:14,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:33:14,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:33:14,991 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:33:14,991 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:33:14,992 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label41.c [2020-10-12 14:33:15,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f9314f71/82c283cea8704529adf16ce710a75062/FLAGd9013df18 [2020-10-12 14:33:15,770 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:33:15,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label41.c [2020-10-12 14:33:15,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f9314f71/82c283cea8704529adf16ce710a75062/FLAGd9013df18 [2020-10-12 14:33:15,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f9314f71/82c283cea8704529adf16ce710a75062 [2020-10-12 14:33:15,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:33:15,960 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:33:15,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:33:15,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:33:15,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:33:15,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:33:15" (1/1) ... [2020-10-12 14:33:15,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177c5926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:15, skipping insertion in model container [2020-10-12 14:33:15,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:33:15" (1/1) ... [2020-10-12 14:33:15,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:33:16,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:33:16,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:33:16,963 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:33:17,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:33:17,366 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:33:17,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:17 WrapperNode [2020-10-12 14:33:17,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:33:17,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:33:17,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:33:17,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:33:17,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:17" (1/1) ... [2020-10-12 14:33:17,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:17" (1/1) ... [2020-10-12 14:33:17,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:17" (1/1) ... [2020-10-12 14:33:17,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:17" (1/1) ... [2020-10-12 14:33:17,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:17" (1/1) ... [2020-10-12 14:33:17,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:17" (1/1) ... [2020-10-12 14:33:17,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:17" (1/1) ... [2020-10-12 14:33:17,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:33:17,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:33:17,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:33:17,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:33:17,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:17" (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 [2020-10-12 14:33:17,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:33:17,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:33:17,667 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:33:17,667 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:33:17,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:33:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:33:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:33:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:33:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:33:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:33:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:33:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:33:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:33:22,239 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:33:22,240 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:33:22,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:33:22 BoogieIcfgContainer [2020-10-12 14:33:22,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:33:22,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:33:22,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:33:22,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:33:22,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:33:15" (1/3) ... [2020-10-12 14:33:22,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556f51f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:33:22, skipping insertion in model container [2020-10-12 14:33:22,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:33:17" (2/3) ... [2020-10-12 14:33:22,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556f51f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:33:22, skipping insertion in model container [2020-10-12 14:33:22,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:33:22" (3/3) ... [2020-10-12 14:33:22,264 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label41.c [2020-10-12 14:33:22,276 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:33:22,290 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:33:22,305 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:33:22,341 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:33:22,341 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:33:22,341 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:33:22,342 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:33:22,342 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:33:22,342 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:33:22,342 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:33:22,342 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:33:22,378 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-12 14:33:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-12 14:33:22,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:22,391 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] [2020-10-12 14:33:22,391 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:22,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:22,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1258061494, now seen corresponding path program 1 times [2020-10-12 14:33:22,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:22,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137358031] [2020-10-12 14:33:22,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:22,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:22,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:22,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 14:33:22,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:22,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-12 14:33:22,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:33:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:33:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 14:33:22,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:33:23,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:23,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:23,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:23,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:23,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:23,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:33:23,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:23,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:23,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:23,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:33:23,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:33:23,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137358031] [2020-10-12 14:33:23,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:33:23,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:33:23,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508073347] [2020-10-12 14:33:23,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:33:23,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:23,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:33:23,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:33:23,116 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-12 14:33:27,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:27,270 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-12 14:33:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:33:27,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-12 14:33:27,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:27,312 INFO L225 Difference]: With dead ends: 1169 [2020-10-12 14:33:27,313 INFO L226 Difference]: Without dead ends: 696 [2020-10-12 14:33:27,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:33:27,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-12 14:33:27,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-12 14:33:27,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-12 14:33:27,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-12 14:33:27,449 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 29 [2020-10-12 14:33:27,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:27,450 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-12 14:33:27,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:33:27,450 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-12 14:33:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 14:33:27,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:27,455 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:33:27,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:33:27,456 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:27,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:27,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1095003254, now seen corresponding path program 1 times [2020-10-12 14:33:27,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:27,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760889895] [2020-10-12 14:33:27,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:27,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:27,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:28,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:28,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-12 14:33:28,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:33:28,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 757 [2020-10-12 14:33:28,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:28,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:33:28,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:33:28,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:33:28,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:33:28,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:28,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:28,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:28,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:28,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:28,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:33:28,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:33:28,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 14:33:28,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:28,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:28,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:28,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:33:28,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:28,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-12 14:33:28,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:33:28,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:33:28,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760889895] [2020-10-12 14:33:28,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:33:28,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:33:28,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546438579] [2020-10-12 14:33:28,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:28,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:28,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:28,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:28,759 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 7 states. [2020-10-12 14:33:33,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:33,382 INFO L93 Difference]: Finished difference Result 2088 states and 3100 transitions. [2020-10-12 14:33:33,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:33:33,383 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-12 14:33:33,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:33,394 INFO L225 Difference]: With dead ends: 2088 [2020-10-12 14:33:33,394 INFO L226 Difference]: Without dead ends: 1402 [2020-10-12 14:33:33,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:33:33,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2020-10-12 14:33:33,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1378. [2020-10-12 14:33:33,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2020-10-12 14:33:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1813 transitions. [2020-10-12 14:33:33,494 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1813 transitions. Word has length 105 [2020-10-12 14:33:33,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:33,495 INFO L479 AbstractCegarLoop]: Abstraction has 1378 states and 1813 transitions. [2020-10-12 14:33:33,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:33,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1813 transitions. [2020-10-12 14:33:33,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-12 14:33:33,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:33,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:33:33,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:33:33,511 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:33,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:33,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1039404189, now seen corresponding path program 1 times [2020-10-12 14:33:33,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:33,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374559601] [2020-10-12 14:33:33,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:33,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:33,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:33,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:33,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:33,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-12 14:33:33,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-12 14:33:33,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 14:33:33,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:33,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:33,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:33,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:33,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:33,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:33,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:33:33,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:33,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:33,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:33,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:33,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:33:33,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:33,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:33,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:33,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:33:33,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:33,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 14:33:33,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:33,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:33,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:33,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:33:33,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:34,043 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:33:34,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374559601] [2020-10-12 14:33:34,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:34,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:33:34,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661165758] [2020-10-12 14:33:34,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:33:34,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:34,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:33:34,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:33:34,047 INFO L87 Difference]: Start difference. First operand 1378 states and 1813 transitions. Second operand 5 states. [2020-10-12 14:33:38,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:38,538 INFO L93 Difference]: Finished difference Result 3450 states and 4710 transitions. [2020-10-12 14:33:38,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:33:38,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-10-12 14:33:38,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:38,554 INFO L225 Difference]: With dead ends: 3450 [2020-10-12 14:33:38,555 INFO L226 Difference]: Without dead ends: 2078 [2020-10-12 14:33:38,559 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 [2020-10-12 14:33:38,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2020-10-12 14:33:38,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 2072. [2020-10-12 14:33:38,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2072 states. [2020-10-12 14:33:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2616 transitions. [2020-10-12 14:33:38,619 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2616 transitions. Word has length 120 [2020-10-12 14:33:38,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:38,620 INFO L479 AbstractCegarLoop]: Abstraction has 2072 states and 2616 transitions. [2020-10-12 14:33:38,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:33:38,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2616 transitions. [2020-10-12 14:33:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-12 14:33:38,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:38,625 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:33:38,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:33:38,625 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:38,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:38,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1547059085, now seen corresponding path program 1 times [2020-10-12 14:33:38,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:38,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517236789] [2020-10-12 14:33:38,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:38,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:38,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:38,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:43,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:43,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-12 14:33:43,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:33:43,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 14:33:43,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:43,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:33:43,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:33:43,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:33:43,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:43,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:43,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:43,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:43,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:43,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:43,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:33:43,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:33:43,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:43,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:43,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:43,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:43,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:33:43,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:43,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-12 14:33:43,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:43,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:33:43,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:33:43,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:43,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 14:33:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:44,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:44,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:44,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:33:44,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:44,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 14:33:44,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:44,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:33:44,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:33:44,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:33:44,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 95 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:33:44,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517236789] [2020-10-12 14:33:44,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:33:44,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:33:44,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906970497] [2020-10-12 14:33:44,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:33:44,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:44,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:33:44,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:33:44,220 INFO L87 Difference]: Start difference. First operand 2072 states and 2616 transitions. Second operand 7 states. [2020-10-12 14:33:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:33:50,489 INFO L93 Difference]: Finished difference Result 6265 states and 8039 transitions. [2020-10-12 14:33:50,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:33:50,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 258 [2020-10-12 14:33:50,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:33:50,516 INFO L225 Difference]: With dead ends: 6265 [2020-10-12 14:33:50,516 INFO L226 Difference]: Without dead ends: 4199 [2020-10-12 14:33:50,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:33:50,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4199 states. [2020-10-12 14:33:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4199 to 4178. [2020-10-12 14:33:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4178 states. [2020-10-12 14:33:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4178 states to 4178 states and 5214 transitions. [2020-10-12 14:33:50,653 INFO L78 Accepts]: Start accepts. Automaton has 4178 states and 5214 transitions. Word has length 258 [2020-10-12 14:33:50,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:33:50,656 INFO L479 AbstractCegarLoop]: Abstraction has 4178 states and 5214 transitions. [2020-10-12 14:33:50,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:33:50,656 INFO L276 IsEmpty]: Start isEmpty. Operand 4178 states and 5214 transitions. [2020-10-12 14:33:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-12 14:33:50,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:33:50,664 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:33:50,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:33:50,664 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:33:50,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:33:50,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1264578241, now seen corresponding path program 1 times [2020-10-12 14:33:50,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:33:50,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033867535] [2020-10-12 14:33:50,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:33:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:50,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:50,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:52,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:54,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:54,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-12 14:33:54,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:33:54,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3333 [2020-10-12 14:33:54,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:33:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:33:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-12 14:33:54,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:54,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:33:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:54,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:54,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:54,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:33:54,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:33:54,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:33:54,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:54,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:33:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:33:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:33:54,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:33:54,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:33:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:33:54,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:54,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:33:55,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:33:55,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:33:55,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:33:55,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1188 [2020-10-12 14:33:55,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:33:55,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:33:55,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:33:55,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:33:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:33:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:33:57,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033867535] [2020-10-12 14:33:57,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:33:57,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 14:33:57,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304926178] [2020-10-12 14:33:57,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:33:57,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:33:57,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:33:57,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:33:57,828 INFO L87 Difference]: Start difference. First operand 4178 states and 5214 transitions. Second operand 13 states. [2020-10-12 14:33:58,701 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-10-12 14:33:59,167 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-10-12 14:33:59,524 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-12 14:33:59,883 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-12 14:34:00,207 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-12 14:34:00,449 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-12 14:34:00,733 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2020-10-12 14:34:01,046 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-12 14:34:01,428 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2020-10-12 14:34:01,611 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-12 14:34:01,854 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2020-10-12 14:34:02,307 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-12 14:34:03,095 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:34:06,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:06,329 INFO L93 Difference]: Finished difference Result 8389 states and 10500 transitions. [2020-10-12 14:34:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 14:34:06,332 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 278 [2020-10-12 14:34:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:06,352 INFO L225 Difference]: With dead ends: 8389 [2020-10-12 14:34:06,353 INFO L226 Difference]: Without dead ends: 4125 [2020-10-12 14:34:06,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:34:06,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4125 states. [2020-10-12 14:34:06,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4125 to 4107. [2020-10-12 14:34:06,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4107 states. [2020-10-12 14:34:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 5156 transitions. [2020-10-12 14:34:06,473 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 5156 transitions. Word has length 278 [2020-10-12 14:34:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:06,476 INFO L479 AbstractCegarLoop]: Abstraction has 4107 states and 5156 transitions. [2020-10-12 14:34:06,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:34:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 5156 transitions. [2020-10-12 14:34:06,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-10-12 14:34:06,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:06,481 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:06,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:34:06,482 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:06,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:06,482 INFO L82 PathProgramCache]: Analyzing trace with hash -2016626990, now seen corresponding path program 1 times [2020-10-12 14:34:06,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:06,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361915980] [2020-10-12 14:34:06,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:06,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:06,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:06,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:07,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:07,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:08,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:08,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:11,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:11,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-12 14:34:11,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 14:34:11,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 14:34:11,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:11,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 14:34:11,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:34:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 282 [2020-10-12 14:34:11,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:11,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:11,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:11,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:11,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:11,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:11,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:34:11,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:11,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:11,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:11,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:34:11,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:11,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:11,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:11,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:11,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:11,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:34:11,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:34:11,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 14:34:11,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:34:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:11,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:34:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:11,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:11,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:12,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:12,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:34:12,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:34:12,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-12 14:34:12,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:34:12,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:12,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-12 14:34:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:12,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:12,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:12,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 14:34:12,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:12,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-12 14:34:12,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:12,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:12,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:12,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-12 14:34:12,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 68 proven. 166 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-12 14:34:12,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361915980] [2020-10-12 14:34:12,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:34:12,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:34:12,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115956613] [2020-10-12 14:34:12,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:34:12,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:12,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:34:12,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:34:12,554 INFO L87 Difference]: Start difference. First operand 4107 states and 5156 transitions. Second operand 9 states. [2020-10-12 14:34:17,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:17,690 INFO L93 Difference]: Finished difference Result 10765 states and 14083 transitions. [2020-10-12 14:34:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:34:17,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 301 [2020-10-12 14:34:17,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:17,724 INFO L225 Difference]: With dead ends: 10765 [2020-10-12 14:34:17,725 INFO L226 Difference]: Without dead ends: 5472 [2020-10-12 14:34:17,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-12 14:34:17,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5472 states. [2020-10-12 14:34:17,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 5442. [2020-10-12 14:34:17,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5442 states. [2020-10-12 14:34:17,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 6011 transitions. [2020-10-12 14:34:17,885 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 6011 transitions. Word has length 301 [2020-10-12 14:34:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:17,886 INFO L479 AbstractCegarLoop]: Abstraction has 5442 states and 6011 transitions. [2020-10-12 14:34:17,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:34:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 6011 transitions. [2020-10-12 14:34:17,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-10-12 14:34:17,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:17,895 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:17,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:34:17,895 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:17,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:17,896 INFO L82 PathProgramCache]: Analyzing trace with hash 125205714, now seen corresponding path program 1 times [2020-10-12 14:34:17,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:17,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551554985] [2020-10-12 14:34:17,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:18,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:19,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:19,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 443 [2020-10-12 14:34:19,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:34:19,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1172 [2020-10-12 14:34:19,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-12 14:34:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 14:34:19,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:19,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:19,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:19,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:19,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:19,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:19,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:34:19,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:19,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:19,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:19,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:19,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:19,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:19,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:19,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:19,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:34:19,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:19,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:34:19,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:19,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:19,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:34:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:19,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:19,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:19,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 14:34:19,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:19,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:34:19,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:19,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:19,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:19,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-12 14:34:19,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-10-12 14:34:19,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551554985] [2020-10-12 14:34:19,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:34:19,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:34:19,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811489115] [2020-10-12 14:34:19,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:34:19,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:19,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:34:19,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:34:19,782 INFO L87 Difference]: Start difference. First operand 5442 states and 6011 transitions. Second operand 5 states. [2020-10-12 14:34:22,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:22,422 INFO L93 Difference]: Finished difference Result 10636 states and 11786 transitions. [2020-10-12 14:34:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:34:22,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 431 [2020-10-12 14:34:22,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:22,446 INFO L225 Difference]: With dead ends: 10636 [2020-10-12 14:34:22,446 INFO L226 Difference]: Without dead ends: 5444 [2020-10-12 14:34:22,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:34:22,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5444 states. [2020-10-12 14:34:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5444 to 5442. [2020-10-12 14:34:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5442 states. [2020-10-12 14:34:22,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 5902 transitions. [2020-10-12 14:34:22,580 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 5902 transitions. Word has length 431 [2020-10-12 14:34:22,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:22,581 INFO L479 AbstractCegarLoop]: Abstraction has 5442 states and 5902 transitions. [2020-10-12 14:34:22,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:34:22,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 5902 transitions. [2020-10-12 14:34:22,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2020-10-12 14:34:22,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:22,596 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:34:22,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:34:22,596 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:22,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:22,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1955934657, now seen corresponding path program 1 times [2020-10-12 14:34:22,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:22,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017480421] [2020-10-12 14:34:22,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:22,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:23,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:23,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:24,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:26,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:26,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 538 [2020-10-12 14:34:26,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:34:26,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4083 [2020-10-12 14:34:26,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:26,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:34:26,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-12 14:34:26,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 14:34:26,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:26,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:26,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:26,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:26,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:26,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:26,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:34:26,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:26,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:26,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:26,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:26,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:26,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:34:26,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:26,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:34:26,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:26,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:26,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:26,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:26,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:27,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:34:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:27,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:27,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:27,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 14:34:27,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:27,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 14:34:27,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:27,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-12 14:34:27,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:27,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-12 14:34:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:27,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:27,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:27,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:27,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-12 14:34:27,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:34:27,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-12 14:34:27,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-12 14:34:27,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 244 proven. 5 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-12 14:34:27,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017480421] [2020-10-12 14:34:27,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:34:27,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:34:27,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531970821] [2020-10-12 14:34:27,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:34:27,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:27,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:34:27,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:34:27,803 INFO L87 Difference]: Start difference. First operand 5442 states and 5902 transitions. Second operand 7 states. [2020-10-12 14:34:31,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:31,779 INFO L93 Difference]: Finished difference Result 14038 states and 15494 transitions. [2020-10-12 14:34:31,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:34:31,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 524 [2020-10-12 14:34:31,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:31,818 INFO L225 Difference]: With dead ends: 14038 [2020-10-12 14:34:31,818 INFO L226 Difference]: Without dead ends: 8846 [2020-10-12 14:34:31,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:34:31,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2020-10-12 14:34:31,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 8166. [2020-10-12 14:34:31,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8166 states. [2020-10-12 14:34:32,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8166 states to 8166 states and 8995 transitions. [2020-10-12 14:34:32,007 INFO L78 Accepts]: Start accepts. Automaton has 8166 states and 8995 transitions. Word has length 524 [2020-10-12 14:34:32,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:32,009 INFO L479 AbstractCegarLoop]: Abstraction has 8166 states and 8995 transitions. [2020-10-12 14:34:32,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:34:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 8166 states and 8995 transitions. [2020-10-12 14:34:32,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2020-10-12 14:34:32,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:32,046 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:32,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:34:32,046 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:32,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:32,047 INFO L82 PathProgramCache]: Analyzing trace with hash 793204790, now seen corresponding path program 1 times [2020-10-12 14:34:32,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:32,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854473998] [2020-10-12 14:34:32,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:32,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:32,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:32,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:37,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:37,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:37,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 895 [2020-10-12 14:34:37,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:34:37,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-12 14:34:37,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:37,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-12 14:34:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:34:37,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:37,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:37,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:37,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:37,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:37,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:37,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:34:37,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:37,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:37,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:37,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:37,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:37,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:34:37,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:37,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:34:37,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:37,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:37,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:34:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:37,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:37,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:37,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:34:37,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:37,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:34:37,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:34:37,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:37,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:34:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:37,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:37,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:37,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:34:37,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:37,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-12 14:34:37,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:37,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:34:37,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:37,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:34:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:37,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:38,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:38,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:34:38,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:38,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:34:38,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:38,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:34:38,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:38,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:38,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 764 [2020-10-12 14:34:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:38,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:38,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:38,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:34:38,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:38,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:34:38,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:38,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:38,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-12 14:34:38,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:38,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 355 proven. 203 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2020-10-12 14:34:38,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854473998] [2020-10-12 14:34:38,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:34:38,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:34:38,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31728955] [2020-10-12 14:34:38,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:34:38,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:38,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:34:38,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:34:38,476 INFO L87 Difference]: Start difference. First operand 8166 states and 8995 transitions. Second operand 8 states. [2020-10-12 14:34:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:42,952 INFO L93 Difference]: Finished difference Result 22536 states and 25113 transitions. [2020-10-12 14:34:42,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 14:34:42,954 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 877 [2020-10-12 14:34:42,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:42,998 INFO L225 Difference]: With dead ends: 22536 [2020-10-12 14:34:42,999 INFO L226 Difference]: Without dead ends: 14620 [2020-10-12 14:34:43,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-12 14:34:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14620 states. [2020-10-12 14:34:43,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14620 to 13593. [2020-10-12 14:34:43,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13593 states. [2020-10-12 14:34:43,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13593 states to 13593 states and 14928 transitions. [2020-10-12 14:34:43,291 INFO L78 Accepts]: Start accepts. Automaton has 13593 states and 14928 transitions. Word has length 877 [2020-10-12 14:34:43,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:43,292 INFO L479 AbstractCegarLoop]: Abstraction has 13593 states and 14928 transitions. [2020-10-12 14:34:43,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:34:43,292 INFO L276 IsEmpty]: Start isEmpty. Operand 13593 states and 14928 transitions. [2020-10-12 14:34:43,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1487 [2020-10-12 14:34:43,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:43,351 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-12 14:34:43,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:34:43,351 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:43,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:43,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1663544099, now seen corresponding path program 1 times [2020-10-12 14:34:43,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:43,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331829374] [2020-10-12 14:34:43,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:43,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:43,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:44,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:45,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:48,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:48,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1510 [2020-10-12 14:34:48,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:34:48,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-12 14:34:48,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:48,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:48,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 964 [2020-10-12 14:34:48,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-12 14:34:48,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:48,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:48,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:48,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:48,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:48,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:48,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:34:48,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:48,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:48,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:48,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:48,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:48,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:34:48,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:48,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:34:48,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:48,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:48,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:48,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:34:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:48,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:49,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:49,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:34:49,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:49,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:34:49,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:49,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:49,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-12 14:34:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:49,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:49,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:49,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:34:49,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:49,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:34:49,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:49,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:49,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:49,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:49,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:49,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2020-10-12 14:34:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:49,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:49,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:49,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:34:49,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:49,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:34:49,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:49,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:49,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 681 [2020-10-12 14:34:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:49,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:49,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:49,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:34:49,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:49,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-12 14:34:49,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:49,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:34:49,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:49,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-12 14:34:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:49,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:49,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:49,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:34:49,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:49,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-12 14:34:49,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-12 14:34:49,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:49,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1208 [2020-10-12 14:34:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:49,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:49,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:49,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 14:34:49,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:49,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:34:49,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:49,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:49,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-12 14:34:49,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:49,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:49,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1373 [2020-10-12 14:34:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:49,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:49,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:49,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:34:49,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:49,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:34:49,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:49,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:49,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-12 14:34:49,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:49,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:51,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3922 backedges. 1148 proven. 253 refuted. 0 times theorem prover too weak. 2521 trivial. 0 not checked. [2020-10-12 14:34:51,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331829374] [2020-10-12 14:34:51,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:34:51,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:34:51,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125969771] [2020-10-12 14:34:51,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:34:51,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:51,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:34:51,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:34:51,385 INFO L87 Difference]: Start difference. First operand 13593 states and 14928 transitions. Second operand 7 states. [2020-10-12 14:34:54,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:54,803 INFO L93 Difference]: Finished difference Result 29658 states and 32654 transitions. [2020-10-12 14:34:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:34:54,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1486 [2020-10-12 14:34:54,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:54,873 INFO L225 Difference]: With dead ends: 29658 [2020-10-12 14:34:54,873 INFO L226 Difference]: Without dead ends: 16315 [2020-10-12 14:34:54,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:34:54,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16315 states. [2020-10-12 14:34:55,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16315 to 15972. [2020-10-12 14:34:55,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15972 states. [2020-10-12 14:34:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15972 states to 15972 states and 17393 transitions. [2020-10-12 14:34:55,297 INFO L78 Accepts]: Start accepts. Automaton has 15972 states and 17393 transitions. Word has length 1486 [2020-10-12 14:34:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:55,299 INFO L479 AbstractCegarLoop]: Abstraction has 15972 states and 17393 transitions. [2020-10-12 14:34:55,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:34:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 15972 states and 17393 transitions. [2020-10-12 14:34:55,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1514 [2020-10-12 14:34:55,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:55,380 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:55,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:34:55,381 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:55,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:55,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1447840251, now seen corresponding path program 1 times [2020-10-12 14:34:55,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:55,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843291320] [2020-10-12 14:34:55,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:55,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:56,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:56,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:56,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:57,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:00,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:00,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1539 [2020-10-12 14:35:00,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:35:00,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5184 [2020-10-12 14:35:00,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:00,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:35:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:35:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-12 14:35:00,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:00,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:00,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:01,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:01,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:01,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:35:01,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:35:01,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:01,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:01,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:01,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:01,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:01,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:35:01,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:35:01,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-12 14:35:01,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-12 14:35:01,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:01,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:35:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:01,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:01,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:01,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:35:01,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:01,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-12 14:35:01,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:01,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:01,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:01,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:35:01,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:01,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-12 14:35:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:01,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:01,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:01,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:35:01,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:01,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:35:01,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-12 14:35:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:01,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:01,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-12 14:35:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:02,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:02,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:02,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:35:02,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:02,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:35:02,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:02,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:02,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:35:02,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:02,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:02,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2020-10-12 14:35:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:02,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:02,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:02,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:35:02,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 14:35:02,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:35:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:02,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 831 [2020-10-12 14:35:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:02,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:02,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:02,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:35:02,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:02,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:35:02,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:35:02,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:02,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:02,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 941 [2020-10-12 14:35:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:02,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:02,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:02,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:35:02,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:02,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:35:02,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:35:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:02,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:02,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1156 [2020-10-12 14:35:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:02,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:02,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:02,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-12 14:35:02,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:02,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:35:02,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:02,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:02,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 336 [2020-10-12 14:35:02,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:02,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:02,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:35:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:02,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:02,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:02,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 14:35:02,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:02,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:35:02,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:02,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:02,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:02,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:02,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3857 backedges. 201 proven. 1742 refuted. 0 times theorem prover too weak. 1914 trivial. 0 not checked. [2020-10-12 14:35:04,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843291320] [2020-10-12 14:35:04,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:04,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:35:04,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037993098] [2020-10-12 14:35:04,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:35:04,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:04,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:35:04,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:35:04,495 INFO L87 Difference]: Start difference. First operand 15972 states and 17393 transitions. Second operand 7 states. [2020-10-12 14:35:07,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:07,748 INFO L93 Difference]: Finished difference Result 31702 states and 34547 transitions. [2020-10-12 14:35:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:35:07,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1513 [2020-10-12 14:35:07,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:07,802 INFO L225 Difference]: With dead ends: 31702 [2020-10-12 14:35:07,802 INFO L226 Difference]: Without dead ends: 15980 [2020-10-12 14:35:07,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:35:07,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15980 states. [2020-10-12 14:35:08,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15980 to 15972. [2020-10-12 14:35:08,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15972 states. [2020-10-12 14:35:08,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15972 states to 15972 states and 17391 transitions. [2020-10-12 14:35:08,092 INFO L78 Accepts]: Start accepts. Automaton has 15972 states and 17391 transitions. Word has length 1513 [2020-10-12 14:35:08,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:08,094 INFO L479 AbstractCegarLoop]: Abstraction has 15972 states and 17391 transitions. [2020-10-12 14:35:08,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:35:08,094 INFO L276 IsEmpty]: Start isEmpty. Operand 15972 states and 17391 transitions. [2020-10-12 14:35:08,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1548 [2020-10-12 14:35:08,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:08,148 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:35:08,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:35:08,148 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:08,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1840160301, now seen corresponding path program 1 times [2020-10-12 14:35:08,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:08,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995960390] [2020-10-12 14:35:08,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:08,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:08,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:08,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:09,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:09,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:13,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:13,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1575 [2020-10-12 14:35:13,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:35:13,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-12 14:35:13,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-12 14:35:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:35:13,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:13,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:13,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:13,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:13,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:13,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:13,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:35:13,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:13,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:13,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:13,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:13,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:13,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:13,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:35:13,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:13,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:35:13,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:13,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:35:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:13,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:13,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:13,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:35:13,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:13,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:35:13,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:13,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:13,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:13,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:13,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:13,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:35:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:13,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:13,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:13,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:35:13,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:13,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:35:13,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:13,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:13,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:13,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:13,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:35:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:13,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:13,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:13,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:35:13,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:13,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:35:13,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:13,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:13,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:13,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 14:35:13,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:13,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:35:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:13,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:13,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:13,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:35:13,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:13,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-12 14:35:13,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:13,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:13,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:13,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:35:13,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:13,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-12 14:35:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:13,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:14,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:14,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:35:14,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:14,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:35:14,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:35:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:14,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:14,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 865 [2020-10-12 14:35:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:14,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:14,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:14,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:35:14,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:14,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:35:14,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:14,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:14,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:35:14,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:14,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:14,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:35:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:14,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:14,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:14,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:35:14,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:14,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-12 14:35:14,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:35:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:14,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:14,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1190 [2020-10-12 14:35:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:14,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:14,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-12 14:35:14,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:14,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-12 14:35:14,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:14,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:14,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 336 [2020-10-12 14:35:14,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:14,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:14,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:35:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:14,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:14,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:14,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 14:35:14,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:14,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 14:35:14,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:14,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:14,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:14,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:14,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4586 backedges. 680 proven. 445 refuted. 0 times theorem prover too weak. 3461 trivial. 0 not checked. [2020-10-12 14:35:15,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995960390] [2020-10-12 14:35:15,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:15,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:35:15,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691149194] [2020-10-12 14:35:15,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:35:15,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:15,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:35:15,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:35:15,727 INFO L87 Difference]: Start difference. First operand 15972 states and 17391 transitions. Second operand 7 states. [2020-10-12 14:35:22,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:22,854 INFO L93 Difference]: Finished difference Result 36454 states and 39760 transitions. [2020-10-12 14:35:22,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:35:22,855 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1547 [2020-10-12 14:35:22,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:22,911 INFO L225 Difference]: With dead ends: 36454 [2020-10-12 14:35:22,912 INFO L226 Difference]: Without dead ends: 20732 [2020-10-12 14:35:22,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:35:22,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20732 states. [2020-10-12 14:35:23,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20732 to 20730. [2020-10-12 14:35:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20730 states. [2020-10-12 14:35:23,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20730 states to 20730 states and 22447 transitions. [2020-10-12 14:35:23,250 INFO L78 Accepts]: Start accepts. Automaton has 20730 states and 22447 transitions. Word has length 1547 [2020-10-12 14:35:23,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:23,251 INFO L479 AbstractCegarLoop]: Abstraction has 20730 states and 22447 transitions. [2020-10-12 14:35:23,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:35:23,252 INFO L276 IsEmpty]: Start isEmpty. Operand 20730 states and 22447 transitions. [2020-10-12 14:35:23,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1610 [2020-10-12 14:35:23,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:23,326 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:35:23,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:35:23,327 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:23,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:23,327 INFO L82 PathProgramCache]: Analyzing trace with hash 714925961, now seen corresponding path program 1 times [2020-10-12 14:35:23,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:23,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369065860] [2020-10-12 14:35:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:24,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:24,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:24,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:25,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:25,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:27,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:28,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:28,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1637 [2020-10-12 14:35:28,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:35:28,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-12 14:35:28,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:28,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:28,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 544 [2020-10-12 14:35:28,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 14:35:28,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:28,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:28,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:28,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:28,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:28,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:28,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:35:28,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:28,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:28,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:28,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:28,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:35:28,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:28,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:28,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:28,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:35:28,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:35:28,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:28,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:35:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:28,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:28,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:28,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:35:28,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:28,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:35:28,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:28,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:35:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:28,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:29,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:29,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:35:29,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:29,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:35:29,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:35:29,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:29,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:35:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:29,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:29,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:29,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 14:35:29,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:29,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 14:35:29,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:29,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:29,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:29,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 14:35:29,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:29,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-12 14:35:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:29,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:29,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:29,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:35:29,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:29,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:35:29,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:35:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:29,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 785 [2020-10-12 14:35:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:29,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:29,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:29,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:35:29,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:29,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:35:29,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:35:29,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:29,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:29,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 927 [2020-10-12 14:35:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:29,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:29,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:29,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:35:29,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:29,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:35:29,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:35:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:29,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:29,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2020-10-12 14:35:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:29,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:29,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:29,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:35:29,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:29,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 14:35:29,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:29,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:29,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:35:29,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:29,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:29,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1252 [2020-10-12 14:35:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:29,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:29,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:29,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-12 14:35:29,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:29,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 14:35:29,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:29,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:29,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 336 [2020-10-12 14:35:29,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:29,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:29,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:35:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:29,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:29,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:29,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 14:35:29,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:29,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:35:29,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:29,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:29,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:29,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:29,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 5040 backedges. 652 proven. 608 refuted. 0 times theorem prover too weak. 3780 trivial. 0 not checked. [2020-10-12 14:35:30,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369065860] [2020-10-12 14:35:30,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:30,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:35:30,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550945849] [2020-10-12 14:35:30,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:35:30,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:30,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:35:30,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:35:30,863 INFO L87 Difference]: Start difference. First operand 20730 states and 22447 transitions. Second operand 7 states. [2020-10-12 14:35:34,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:34,415 INFO L93 Difference]: Finished difference Result 40879 states and 44304 transitions. [2020-10-12 14:35:34,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:35:34,416 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1609 [2020-10-12 14:35:34,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:34,462 INFO L225 Difference]: With dead ends: 40879 [2020-10-12 14:35:34,462 INFO L226 Difference]: Without dead ends: 20744 [2020-10-12 14:35:34,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:35:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20744 states. [2020-10-12 14:35:34,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20744 to 20740. [2020-10-12 14:35:34,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20740 states. [2020-10-12 14:35:34,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20740 states to 20740 states and 22221 transitions. [2020-10-12 14:35:34,797 INFO L78 Accepts]: Start accepts. Automaton has 20740 states and 22221 transitions. Word has length 1609 [2020-10-12 14:35:34,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:34,798 INFO L479 AbstractCegarLoop]: Abstraction has 20740 states and 22221 transitions. [2020-10-12 14:35:34,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:35:34,798 INFO L276 IsEmpty]: Start isEmpty. Operand 20740 states and 22221 transitions. [2020-10-12 14:35:34,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1610 [2020-10-12 14:35:34,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:34,834 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:35:34,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:35:34,834 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:34,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:34,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1688358058, now seen corresponding path program 1 times [2020-10-12 14:35:34,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:34,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068816100] [2020-10-12 14:35:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:35,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:35,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:35,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:40,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:40,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1635 [2020-10-12 14:35:40,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:35:40,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5095 [2020-10-12 14:35:40,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:35:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-12 14:35:40,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:40,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:40,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:40,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:40,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:40,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:40,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:35:40,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:40,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:40,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:40,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:40,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:40,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:40,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:40,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:40,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:35:40,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:40,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 14:35:40,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:40,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:40,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:35:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:40,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:35:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:40,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:40,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:40,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:35:40,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:40,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 14:35:40,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:40,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-12 14:35:40,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:40,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:35:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:40,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:40,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:40,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:35:40,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:40,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:35:40,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:35:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:40,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:40,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:35:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:40,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:40,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:40,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:35:40,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:40,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 14:35:40,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-12 14:35:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:40,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:40,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-12 14:35:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:40,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:41,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:41,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:35:41,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:41,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-12 14:35:41,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:41,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:41,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:35:41,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:41,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:41,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-12 14:35:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:41,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:41,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:41,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:35:41,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:41,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:35:41,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:41,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:41,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 14:35:41,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:41,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:41,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1077 [2020-10-12 14:35:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:41,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:41,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:41,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:35:41,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:41,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 14:35:41,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-12 14:35:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:41,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:41,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1331 [2020-10-12 14:35:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:41,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:41,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:41,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 14:35:41,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:41,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:35:41,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:41,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:41,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-12 14:35:41,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:41,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:41,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1496 [2020-10-12 14:35:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:41,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:41,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:41,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:35:41,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:41,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:35:41,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:41,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:41,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-12 14:35:41,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4971 backedges. 385 proven. 921 refuted. 0 times theorem prover too weak. 3665 trivial. 0 not checked. [2020-10-12 14:35:42,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068816100] [2020-10-12 14:35:42,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:42,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:35:42,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482589589] [2020-10-12 14:35:42,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:35:42,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:42,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:35:42,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:35:42,875 INFO L87 Difference]: Start difference. First operand 20740 states and 22221 transitions. Second operand 7 states. [2020-10-12 14:35:46,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:46,709 INFO L93 Difference]: Finished difference Result 41555 states and 44548 transitions. [2020-10-12 14:35:46,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:35:46,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1609 [2020-10-12 14:35:46,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:46,757 INFO L225 Difference]: With dead ends: 41555 [2020-10-12 14:35:46,757 INFO L226 Difference]: Without dead ends: 21402 [2020-10-12 14:35:46,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:35:46,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21402 states. [2020-10-12 14:35:47,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21402 to 20054. [2020-10-12 14:35:47,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20054 states. [2020-10-12 14:35:47,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20054 states to 20054 states and 21474 transitions. [2020-10-12 14:35:47,153 INFO L78 Accepts]: Start accepts. Automaton has 20054 states and 21474 transitions. Word has length 1609 [2020-10-12 14:35:47,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:47,153 INFO L479 AbstractCegarLoop]: Abstraction has 20054 states and 21474 transitions. [2020-10-12 14:35:47,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:35:47,154 INFO L276 IsEmpty]: Start isEmpty. Operand 20054 states and 21474 transitions. [2020-10-12 14:35:47,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1668 [2020-10-12 14:35:47,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:47,184 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:35:47,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:35:47,184 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:47,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:47,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1810030627, now seen corresponding path program 1 times [2020-10-12 14:35:47,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:47,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638628212] [2020-10-12 14:35:47,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:47,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:47,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:48,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:48,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:48,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:52,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:52,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1695 [2020-10-12 14:35:52,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:35:52,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5093 [2020-10-12 14:35:52,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:52,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1109 [2020-10-12 14:35:52,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 14:35:52,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:52,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:52,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:52,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:52,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:52,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:52,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:35:52,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:52,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:52,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:52,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:52,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:52,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:35:52,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:52,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:35:52,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:52,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:52,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:35:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:52,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:52,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:52,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:35:52,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:52,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:35:52,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:52,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:52,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:52,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:52,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:52,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-12 14:35:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:52,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:52,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:52,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:35:52,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:52,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:35:52,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:52,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:52,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:52,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:52,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:52,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-12 14:35:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:52,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:52,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:52,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:35:52,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:52,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:35:52,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:52,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:52,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2020-10-12 14:35:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:52,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:52,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:52,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:35:52,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:52,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:35:52,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:52,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:53,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 843 [2020-10-12 14:35:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:53,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:53,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:53,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:35:53,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:53,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:35:53,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:53,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:53,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 14:35:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:53,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:53,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:53,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:35:53,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:53,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:35:53,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:53,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:53,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:53,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:35:53,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:53,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1095 [2020-10-12 14:35:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:53,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:53,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:53,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:35:53,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:53,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-12 14:35:53,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-12 14:35:53,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:53,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1310 [2020-10-12 14:35:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:53,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:53,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:53,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-12 14:35:53,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:53,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-12 14:35:53,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:53,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:53,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 336 [2020-10-12 14:35:53,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:53,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:53,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:35:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:53,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:53,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:53,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 14:35:53,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:53,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:35:53,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:53,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:53,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4992 backedges. 1256 proven. 214 refuted. 0 times theorem prover too weak. 3522 trivial. 0 not checked. [2020-10-12 14:35:55,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638628212] [2020-10-12 14:35:55,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:55,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:35:55,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700718096] [2020-10-12 14:35:55,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:35:55,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:55,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:35:55,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:35:55,846 INFO L87 Difference]: Start difference. First operand 20054 states and 21474 transitions. Second operand 7 states. [2020-10-12 14:36:00,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:00,992 INFO L93 Difference]: Finished difference Result 40195 states and 43039 transitions. [2020-10-12 14:36:00,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:36:00,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1667 [2020-10-12 14:36:00,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:01,038 INFO L225 Difference]: With dead ends: 40195 [2020-10-12 14:36:01,039 INFO L226 Difference]: Without dead ends: 19692 [2020-10-12 14:36:01,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:36:01,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19692 states. [2020-10-12 14:36:01,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19692 to 19355. [2020-10-12 14:36:01,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19355 states. [2020-10-12 14:36:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19355 states to 19355 states and 20671 transitions. [2020-10-12 14:36:01,370 INFO L78 Accepts]: Start accepts. Automaton has 19355 states and 20671 transitions. Word has length 1667 [2020-10-12 14:36:01,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:01,372 INFO L479 AbstractCegarLoop]: Abstraction has 19355 states and 20671 transitions. [2020-10-12 14:36:01,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:36:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand 19355 states and 20671 transitions. [2020-10-12 14:36:01,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1783 [2020-10-12 14:36:01,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:01,421 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:36:01,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:36:01,422 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:01,422 INFO L82 PathProgramCache]: Analyzing trace with hash -585434313, now seen corresponding path program 1 times [2020-10-12 14:36:01,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:01,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230712861] [2020-10-12 14:36:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:01,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:01,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:02,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:06,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:06,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1810 [2020-10-12 14:36:06,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:36:06,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 14:36:06,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1191 [2020-10-12 14:36:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:36:06,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:06,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:06,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:06,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:06,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:06,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:06,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:36:06,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:06,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:06,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:06,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:06,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:06,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:36:06,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:06,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:36:06,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:06,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:06,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:36:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:06,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:06,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:06,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:36:06,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:06,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:36:06,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:06,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:07,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:36:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:07,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:07,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:07,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:36:07,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:07,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:07,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:36:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:07,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:36:07,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:07,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:36:07,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:07,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:07,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:36:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:07,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:36:07,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:07,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:36:07,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:07,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:07,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:36:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:07,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:36:07,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:07,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:36:07,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:07,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:07,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 14:36:07,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:07,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-12 14:36:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:07,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:36:07,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:07,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 14:36:07,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:07,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:07,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 14:36:07,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:07,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1250 [2020-10-12 14:36:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:07,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:36:07,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:07,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 14:36:07,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-12 14:36:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:07,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:07,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1504 [2020-10-12 14:36:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:07,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 14:36:07,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:07,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:36:07,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:07,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-12 14:36:07,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:07,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:07,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1669 [2020-10-12 14:36:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:07,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:07,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:07,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:36:07,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:07,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:36:07,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:07,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:07,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-12 14:36:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:07,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:09,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6159 backedges. 725 proven. 206 refuted. 0 times theorem prover too weak. 5228 trivial. 0 not checked. [2020-10-12 14:36:09,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230712861] [2020-10-12 14:36:09,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:09,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:09,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941473226] [2020-10-12 14:36:09,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:09,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:09,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:09,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:09,266 INFO L87 Difference]: Start difference. First operand 19355 states and 20671 transitions. Second operand 7 states. [2020-10-12 14:36:12,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:12,890 INFO L93 Difference]: Finished difference Result 39140 states and 41817 transitions. [2020-10-12 14:36:12,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:36:12,892 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1782 [2020-10-12 14:36:12,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:12,926 INFO L225 Difference]: With dead ends: 39140 [2020-10-12 14:36:12,926 INFO L226 Difference]: Without dead ends: 20035 [2020-10-12 14:36:12,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:36:12,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20035 states. [2020-10-12 14:36:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20035 to 19357. [2020-10-12 14:36:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19357 states. [2020-10-12 14:36:13,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19357 states to 19357 states and 20676 transitions. [2020-10-12 14:36:13,223 INFO L78 Accepts]: Start accepts. Automaton has 19357 states and 20676 transitions. Word has length 1782 [2020-10-12 14:36:13,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:13,225 INFO L479 AbstractCegarLoop]: Abstraction has 19357 states and 20676 transitions. [2020-10-12 14:36:13,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:36:13,225 INFO L276 IsEmpty]: Start isEmpty. Operand 19357 states and 20676 transitions. [2020-10-12 14:36:13,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1884 [2020-10-12 14:36:13,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:13,268 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:36:13,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:36:13,268 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:13,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:13,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1642687078, now seen corresponding path program 1 times [2020-10-12 14:36:13,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:13,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849178968] [2020-10-12 14:36:13,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:13,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:13,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:14,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:14,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:18,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:18,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1909 [2020-10-12 14:36:18,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:36:18,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 14:36:18,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:18,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:36:18,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1077 [2020-10-12 14:36:18,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:36:18,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:18,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:18,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:18,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:18,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:18,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:36:18,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:18,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:18,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:18,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:18,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:36:18,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:18,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:36:18,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:18,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:18,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:36:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:18,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:19,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:19,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:36:19,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:19,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:36:19,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:19,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:19,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:19,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:19,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:36:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:19,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:19,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:19,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:19,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:19,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:36:19,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:19,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:19,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:19,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:19,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:19,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:36:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:19,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:19,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:19,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:36:19,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:19,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:36:19,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:19,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:19,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:36:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:19,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:19,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:19,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:36:19,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:19,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-12 14:36:19,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:19,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:19,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:19,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:36:19,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:19,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:36:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:19,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:19,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:20,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:20,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-12 14:36:20,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:20,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 821 [2020-10-12 14:36:20,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:36:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-12 14:36:20,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:21,450 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-12 14:36:21,784 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2020-10-12 14:36:22,199 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 80 [2020-10-12 14:36:22,608 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 83 [2020-10-12 14:36:23,061 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2020-10-12 14:36:23,700 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2020-10-12 14:36:25,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1351 [2020-10-12 14:36:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:25,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:25,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:25,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:36:25,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:25,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 14:36:25,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:25,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:25,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-12 14:36:25,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:25,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:25,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1605 [2020-10-12 14:36:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:25,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:25,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:25,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 14:36:25,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:25,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:36:25,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-12 14:36:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:25,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:25,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1770 [2020-10-12 14:36:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:25,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:25,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:25,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:36:25,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:36:25,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-12 14:36:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:36,207 INFO L134 CoverageAnalysis]: Checked inductivity of 6192 backedges. 1322 proven. 504 refuted. 0 times theorem prover too weak. 4366 trivial. 0 not checked. [2020-10-12 14:36:36,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849178968] [2020-10-12 14:36:36,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:36,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:36:36,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9049484] [2020-10-12 14:36:36,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:36:36,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:36,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:36:36,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:36:36,210 INFO L87 Difference]: Start difference. First operand 19357 states and 20676 transitions. Second operand 13 states. [2020-10-12 14:36:36,393 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2020-10-12 14:36:37,528 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2020-10-12 14:36:38,491 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 70 [2020-10-12 14:36:38,862 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2020-10-12 14:36:39,596 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 91 [2020-10-12 14:36:39,990 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 75 [2020-10-12 14:36:40,404 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2020-10-12 14:36:40,887 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 98 [2020-10-12 14:36:41,573 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 97 [2020-10-12 14:36:43,265 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-12 14:36:44,545 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 58 [2020-10-12 14:36:45,631 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 65 [2020-10-12 14:36:46,067 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 67 [2020-10-12 14:36:46,771 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 70 [2020-10-12 14:36:47,224 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 73 [2020-10-12 14:36:47,827 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 76 [2020-10-12 14:36:49,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:49,123 INFO L93 Difference]: Finished difference Result 38803 states and 41466 transitions. [2020-10-12 14:36:49,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 14:36:49,124 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1883 [2020-10-12 14:36:49,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:49,153 INFO L225 Difference]: With dead ends: 38803 [2020-10-12 14:36:49,153 INFO L226 Difference]: Without dead ends: 19622 [2020-10-12 14:36:49,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=259, Invalid=671, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:36:49,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19622 states. [2020-10-12 14:36:49,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19622 to 19620. [2020-10-12 14:36:49,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19620 states. [2020-10-12 14:36:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19620 states to 19620 states and 20946 transitions. [2020-10-12 14:36:49,413 INFO L78 Accepts]: Start accepts. Automaton has 19620 states and 20946 transitions. Word has length 1883 [2020-10-12 14:36:49,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:49,415 INFO L479 AbstractCegarLoop]: Abstraction has 19620 states and 20946 transitions. [2020-10-12 14:36:49,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:36:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 19620 states and 20946 transitions. [2020-10-12 14:36:49,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1912 [2020-10-12 14:36:49,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:49,466 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:36:49,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:36:49,467 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:49,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:49,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1748114566, now seen corresponding path program 1 times [2020-10-12 14:36:49,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:49,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606402994] [2020-10-12 14:36:49,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:50,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:50,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:50,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:50,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:54,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:54,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:54,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1941 [2020-10-12 14:36:54,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:36:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 14:36:54,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:36:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1109 [2020-10-12 14:36:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 266 [2020-10-12 14:36:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:55,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:55,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:55,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:55,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:55,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:36:55,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:55,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:55,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:55,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:55,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:55,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:55,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:55,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:36:55,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:55,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:36:55,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:55,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:55,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:36:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:55,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:55,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:36:55,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:55,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:36:55,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:55,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:55,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:55,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:55,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:55,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-12 14:36:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:55,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:55,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:36:55,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:55,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:36:55,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:55,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:55,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-12 14:36:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:55,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:55,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:36:55,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:55,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:36:55,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:55,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:55,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2020-10-12 14:36:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:55,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:55,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:36:55,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:55,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:36:55,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:55,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:55,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 843 [2020-10-12 14:36:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:55,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:55,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:36:55,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:55,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:36:55,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:55,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:55,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:55,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:55,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 14:36:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:55,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:55,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:36:55,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:55,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:36:55,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:36:55,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:55,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1095 [2020-10-12 14:36:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:55,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:55,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:56,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:56,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-12 14:36:56,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:56,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 773 [2020-10-12 14:36:56,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:56,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:36:56,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:56,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-12 14:36:56,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,009 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2020-10-12 14:36:57,280 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2020-10-12 14:36:57,575 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2020-10-12 14:36:57,901 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2020-10-12 14:36:58,234 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2020-10-12 14:36:58,581 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81