/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:08:46,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:08:46,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:08:46,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:08:46,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:08:46,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:08:46,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:08:46,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:08:46,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:08:46,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:08:46,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:08:46,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:08:46,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:08:46,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:08:46,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:08:46,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:08:46,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:08:46,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:08:46,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:08:46,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:08:46,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:08:46,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:08:46,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:08:46,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:08:46,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:08:46,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:08:46,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:08:46,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:08:46,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:08:46,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:08:46,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:08:46,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:08:46,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:08:46,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:08:46,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:08:46,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:08:46,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:08:46,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:08:46,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:08:46,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:08:46,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:08:46,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 22:08:46,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:08:46,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:08:46,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:08:46,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:08:46,422 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:08:46,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:08:46,422 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:08:46,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:08:46,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:08:46,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:08:46,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:08:46,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:08:46,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:08:46,424 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:08:46,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:08:46,426 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:08:46,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:08:46,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:08:46,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:08:46,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:08:46,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:08:46,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:08:46,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:08:46,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:08:46,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:08:46,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:08:46,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:08:46,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:08:46,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:08:46,429 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:08:46,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:08:46,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:08:46,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:08:46,795 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:08:46,795 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:08:46,796 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label05.c [2020-10-14 22:08:46,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75571af19/4b8ffd0740364ff2a92e44249275841d/FLAGf5bc9d89e [2020-10-14 22:08:47,614 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:08:47,614 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label05.c [2020-10-14 22:08:47,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75571af19/4b8ffd0740364ff2a92e44249275841d/FLAGf5bc9d89e [2020-10-14 22:08:47,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75571af19/4b8ffd0740364ff2a92e44249275841d [2020-10-14 22:08:47,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:08:47,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:08:47,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:08:47,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:08:47,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:08:47,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:08:47" (1/1) ... [2020-10-14 22:08:47,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ab3a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:47, skipping insertion in model container [2020-10-14 22:08:47,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:08:47" (1/1) ... [2020-10-14 22:08:47,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:08:47,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:08:48,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:08:48,757 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:08:49,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:08:49,114 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:08:49,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:49 WrapperNode [2020-10-14 22:08:49,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:08:49,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:08:49,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:08:49,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:08:49,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:49" (1/1) ... [2020-10-14 22:08:49,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:49" (1/1) ... [2020-10-14 22:08:49,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:49" (1/1) ... [2020-10-14 22:08:49,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:49" (1/1) ... [2020-10-14 22:08:49,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:49" (1/1) ... [2020-10-14 22:08:49,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:49" (1/1) ... [2020-10-14 22:08:49,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:49" (1/1) ... [2020-10-14 22:08:49,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:08:49,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:08:49,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:08:49,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:08:49,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:08:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:08:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:08:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:08:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:08:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:08:49,426 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:08:49,426 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:08:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:08:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:08:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:08:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:08:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:08:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:08:53,888 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:08:53,888 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:08:53,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:08:53 BoogieIcfgContainer [2020-10-14 22:08:53,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:08:53,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:08:53,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:08:53,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:08:53,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:08:47" (1/3) ... [2020-10-14 22:08:53,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425b5c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:08:53, skipping insertion in model container [2020-10-14 22:08:53,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:49" (2/3) ... [2020-10-14 22:08:53,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425b5c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:08:53, skipping insertion in model container [2020-10-14 22:08:53,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:08:53" (3/3) ... [2020-10-14 22:08:53,904 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label05.c [2020-10-14 22:08:53,915 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:08:53,923 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:08:53,938 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:08:53,965 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:08:53,965 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:08:53,965 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:08:53,965 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:08:53,966 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:08:53,966 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:08:53,966 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:08:53,966 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:08:54,001 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:08:54,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 22:08:54,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:08:54,009 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] [2020-10-14 22:08:54,010 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:08:54,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:08:54,016 INFO L82 PathProgramCache]: Analyzing trace with hash 521251962, now seen corresponding path program 1 times [2020-10-14 22:08:54,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:08:54,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177808610] [2020-10-14 22:08:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:08:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:54,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:54,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:54,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 22:08:54,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:54,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-10-14 22:08:54,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:54,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:54,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:08:54,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:08:54,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 22:08:54,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:08:54,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:08:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:54,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:54,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:54,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:08:54,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:54,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:08:54,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:54,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:08:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:08:54,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:08:54,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:08:54,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177808610] [2020-10-14 22:08:54,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:08:54,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:08:54,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717177221] [2020-10-14 22:08:54,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:08:54,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:08:54,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:08:54,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:08:54,780 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:08:58,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:08:58,727 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 22:08:58,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:08:58,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-14 22:08:58,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:08:58,749 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:08:58,749 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:08:58,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:08:58,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:08:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 22:08:58,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 22:08:58,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-14 22:08:58,872 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 25 [2020-10-14 22:08:58,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:08:58,874 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-14 22:08:58,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:08:58,875 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-14 22:08:58,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 22:08:58,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:08:58,883 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:08:58,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:08:58,884 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:08:58,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:08:58,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1195239347, now seen corresponding path program 1 times [2020-10-14 22:08:58,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:08:58,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090604117] [2020-10-14 22:08:58,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:08:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:59,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:59,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:59,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:59,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 22:08:59,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:08:59,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 797 [2020-10-14 22:08:59,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:59,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:59,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:08:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:08:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:08:59,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:08:59,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:08:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:59,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:59,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:59,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:08:59,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:59,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:08:59,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:59,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:08:59,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:08:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:08:59,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:08:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:59,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:00,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:00,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:09:00,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:00,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 22:09:00,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:00,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:00,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:09:00,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 22:09:00,216 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:09:00,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090604117] [2020-10-14 22:09:00,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:09:00,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:09:00,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461789521] [2020-10-14 22:09:00,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:00,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:00,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:00,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:00,221 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 7 states. [2020-10-14 22:09:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:04,294 INFO L93 Difference]: Finished difference Result 1742 states and 2659 transitions. [2020-10-14 22:09:04,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:09:04,295 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 100 [2020-10-14 22:09:04,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:04,303 INFO L225 Difference]: With dead ends: 1742 [2020-10-14 22:09:04,303 INFO L226 Difference]: Without dead ends: 1059 [2020-10-14 22:09:04,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:09:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2020-10-14 22:09:04,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1046. [2020-10-14 22:09:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1046 states. [2020-10-14 22:09:04,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1499 transitions. [2020-10-14 22:09:04,356 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1499 transitions. Word has length 100 [2020-10-14 22:09:04,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:04,357 INFO L479 AbstractCegarLoop]: Abstraction has 1046 states and 1499 transitions. [2020-10-14 22:09:04,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:04,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1499 transitions. [2020-10-14 22:09:04,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 22:09:04,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:04,360 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:09:04,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:09:04,360 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:04,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:04,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1611937254, now seen corresponding path program 1 times [2020-10-14 22:09:04,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:04,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963279508] [2020-10-14 22:09:04,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:04,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:04,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:05,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:05,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:09:05,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:09:05,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 779 [2020-10-14 22:09:05,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:05,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:09:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:09:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:05,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:05,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:05,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:05,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:05,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:05,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:09:05,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:05,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:05,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:05,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:05,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:05,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:05,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:05,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:05,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:05,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:09:05,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:05,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 22:09:05,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:05,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:05,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:09:05,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:05,548 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:09:05,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963279508] [2020-10-14 22:09:05,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:09:05,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:09:05,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944690167] [2020-10-14 22:09:05,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:05,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:05,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:05,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:05,551 INFO L87 Difference]: Start difference. First operand 1046 states and 1499 transitions. Second operand 7 states. [2020-10-14 22:09:10,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:10,528 INFO L93 Difference]: Finished difference Result 3182 states and 4658 transitions. [2020-10-14 22:09:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:09:10,529 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 101 [2020-10-14 22:09:10,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:10,542 INFO L225 Difference]: With dead ends: 3182 [2020-10-14 22:09:10,542 INFO L226 Difference]: Without dead ends: 2142 [2020-10-14 22:09:10,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:09:10,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-14 22:09:10,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2095. [2020-10-14 22:09:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2020-10-14 22:09:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2719 transitions. [2020-10-14 22:09:10,618 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2719 transitions. Word has length 101 [2020-10-14 22:09:10,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:10,619 INFO L479 AbstractCegarLoop]: Abstraction has 2095 states and 2719 transitions. [2020-10-14 22:09:10,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:10,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2719 transitions. [2020-10-14 22:09:10,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-14 22:09:10,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:10,625 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:09:10,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:09:10,625 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:10,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:10,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1611973385, now seen corresponding path program 1 times [2020-10-14 22:09:10,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:10,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993985096] [2020-10-14 22:09:10,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:10,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:10,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:10,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:11,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:11,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:13,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:13,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-14 22:09:13,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:09:13,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2592 [2020-10-14 22:09:13,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:13,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:13,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:09:13,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:13,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 22:09:13,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:13,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:13,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:13,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:13,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:13,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:13,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:09:13,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:13,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:13,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:13,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:13,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:09:13,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:13,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:13,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:13,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:13,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:09:13,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:09:13,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 22:09:13,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:13,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:09:13,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:13,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:09:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:13,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:13,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:13,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:09:13,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:13,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 22:09:13,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:13,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:13,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 22:09:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:09:13,798 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 102 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:09:13,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993985096] [2020-10-14 22:09:13,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:13,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:09:13,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717210001] [2020-10-14 22:09:13,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:13,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:13,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:13,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:13,805 INFO L87 Difference]: Start difference. First operand 2095 states and 2719 transitions. Second operand 7 states. [2020-10-14 22:09:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:18,365 INFO L93 Difference]: Finished difference Result 4931 states and 6641 transitions. [2020-10-14 22:09:18,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:09:18,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 188 [2020-10-14 22:09:18,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:18,387 INFO L225 Difference]: With dead ends: 4931 [2020-10-14 22:09:18,387 INFO L226 Difference]: Without dead ends: 2842 [2020-10-14 22:09:18,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:09:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2020-10-14 22:09:18,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2437. [2020-10-14 22:09:18,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2437 states. [2020-10-14 22:09:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3190 transitions. [2020-10-14 22:09:18,478 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3190 transitions. Word has length 188 [2020-10-14 22:09:18,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:18,478 INFO L479 AbstractCegarLoop]: Abstraction has 2437 states and 3190 transitions. [2020-10-14 22:09:18,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3190 transitions. [2020-10-14 22:09:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-14 22:09:18,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:18,488 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:09:18,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:09:18,488 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:18,489 INFO L82 PathProgramCache]: Analyzing trace with hash -2017948661, now seen corresponding path program 1 times [2020-10-14 22:09:18,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:18,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399049172] [2020-10-14 22:09:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:18,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:18,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:19,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:19,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:21,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:22,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:22,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 380 [2020-10-14 22:09:22,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:09:22,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3767 [2020-10-14 22:09:22,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:22,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:22,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:09:22,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:09:22,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:09:22,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:22,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:22,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:22,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:22,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:22,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:22,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:09:22,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:22,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:22,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:22,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 22:09:22,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:22,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:22,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:22,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:09:22,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:22,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:09:22,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:22,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:09:22,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:09:22,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:09:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:22,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:22,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:23,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:23,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:09:23,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:09:23,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-14 22:09:23,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:23,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:09:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:23,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 22:09:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:23,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:23,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:23,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:09:23,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:23,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 22:09:23,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:23,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:09:23,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 230 proven. 4 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-14 22:09:23,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399049172] [2020-10-14 22:09:23,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:23,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:09:23,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435412175] [2020-10-14 22:09:23,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:23,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:23,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:23,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:23,695 INFO L87 Difference]: Start difference. First operand 2437 states and 3190 transitions. Second operand 7 states. [2020-10-14 22:09:28,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:28,630 INFO L93 Difference]: Finished difference Result 6296 states and 8427 transitions. [2020-10-14 22:09:28,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:09:28,631 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 366 [2020-10-14 22:09:28,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:28,648 INFO L225 Difference]: With dead ends: 6296 [2020-10-14 22:09:28,648 INFO L226 Difference]: Without dead ends: 3488 [2020-10-14 22:09:28,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:09:28,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2020-10-14 22:09:28,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3466. [2020-10-14 22:09:28,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3466 states. [2020-10-14 22:09:28,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3466 states to 3466 states and 3803 transitions. [2020-10-14 22:09:28,747 INFO L78 Accepts]: Start accepts. Automaton has 3466 states and 3803 transitions. Word has length 366 [2020-10-14 22:09:28,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:28,747 INFO L479 AbstractCegarLoop]: Abstraction has 3466 states and 3803 transitions. [2020-10-14 22:09:28,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:28,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3466 states and 3803 transitions. [2020-10-14 22:09:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-14 22:09:28,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:28,755 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:09:28,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:09:28,756 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:28,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:28,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1869831750, now seen corresponding path program 1 times [2020-10-14 22:09:28,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:28,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864321700] [2020-10-14 22:09:28,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:28,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:28,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:29,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:32,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:33,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:33,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 383 [2020-10-14 22:09:33,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:09:33,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 22:09:33,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:33,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:33,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:33,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:09:33,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:09:33,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:33,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:33,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:33,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:33,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:33,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:33,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:09:33,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:33,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:33,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:33,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:34,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:34,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:09:34,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:09:34,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:34,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:34,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:34,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:34,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:09:34,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:34,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:09:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:34,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:34,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:34,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:09:34,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:34,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 22:09:34,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:34,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:09:34,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:34,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:09:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:34,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:34,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:34,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:09:34,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:34,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:09:34,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:34,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:34,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:34,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:09:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:34,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:09:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 155 proven. 114 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 22:09:34,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864321700] [2020-10-14 22:09:34,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:34,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:09:34,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660173311] [2020-10-14 22:09:34,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:09:34,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:34,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:09:34,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:09:34,575 INFO L87 Difference]: Start difference. First operand 3466 states and 3803 transitions. Second operand 8 states. [2020-10-14 22:09:38,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:38,143 INFO L93 Difference]: Finished difference Result 9007 states and 10025 transitions. [2020-10-14 22:09:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:09:38,147 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 369 [2020-10-14 22:09:38,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:38,170 INFO L225 Difference]: With dead ends: 9007 [2020-10-14 22:09:38,171 INFO L226 Difference]: Without dead ends: 5547 [2020-10-14 22:09:38,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:09:38,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2020-10-14 22:09:38,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 5188. [2020-10-14 22:09:38,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5188 states. [2020-10-14 22:09:38,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5188 states to 5188 states and 5772 transitions. [2020-10-14 22:09:38,294 INFO L78 Accepts]: Start accepts. Automaton has 5188 states and 5772 transitions. Word has length 369 [2020-10-14 22:09:38,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:38,295 INFO L479 AbstractCegarLoop]: Abstraction has 5188 states and 5772 transitions. [2020-10-14 22:09:38,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:09:38,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5188 states and 5772 transitions. [2020-10-14 22:09:38,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-10-14 22:09:38,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:38,306 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:09:38,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:09:38,307 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:38,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:38,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1125683339, now seen corresponding path program 1 times [2020-10-14 22:09:38,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:38,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940790912] [2020-10-14 22:09:38,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:38,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:38,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:38,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:39,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:43,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:43,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-14 22:09:43,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:09:43,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 22:09:43,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:43,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:09:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:09:43,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:43,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:43,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:43,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:43,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:43,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:43,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:09:43,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:43,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:43,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:43,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:43,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:43,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:09:43,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:43,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:43,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:43,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:09:43,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-14 22:09:43,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:43,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:43,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:43,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:09:43,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:44,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:09:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:44,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:44,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:44,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:09:44,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:44,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:09:44,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:44,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:09:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:44,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:44,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:09:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:44,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:44,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:44,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:09:44,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:44,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:09:44,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:44,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:09:44,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:44,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:09:44,803 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 54 proven. 174 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 22:09:44,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940790912] [2020-10-14 22:09:44,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:44,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:09:44,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051925651] [2020-10-14 22:09:44,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:44,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:44,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:44,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:44,807 INFO L87 Difference]: Start difference. First operand 5188 states and 5772 transitions. Second operand 7 states. [2020-10-14 22:09:48,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:48,453 INFO L93 Difference]: Finished difference Result 11099 states and 12350 transitions. [2020-10-14 22:09:48,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:09:48,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 458 [2020-10-14 22:09:48,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:48,485 INFO L225 Difference]: With dead ends: 11099 [2020-10-14 22:09:48,485 INFO L226 Difference]: Without dead ends: 5917 [2020-10-14 22:09:48,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:09:48,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5917 states. [2020-10-14 22:09:48,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5917 to 5879. [2020-10-14 22:09:48,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5879 states. [2020-10-14 22:09:48,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 6491 transitions. [2020-10-14 22:09:48,637 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 6491 transitions. Word has length 458 [2020-10-14 22:09:48,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:48,638 INFO L479 AbstractCegarLoop]: Abstraction has 5879 states and 6491 transitions. [2020-10-14 22:09:48,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:48,639 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 6491 transitions. [2020-10-14 22:09:48,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2020-10-14 22:09:48,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:48,669 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:09:48,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:09:48,670 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:48,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:48,671 INFO L82 PathProgramCache]: Analyzing trace with hash -567309862, now seen corresponding path program 1 times [2020-10-14 22:09:48,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:48,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197619800] [2020-10-14 22:09:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:48,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:49,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:49,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:49,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:53,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:53,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 721 [2020-10-14 22:09:53,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:09:53,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-14 22:09:53,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:53,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:09:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:09:53,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:54,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:54,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:54,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:54,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:54,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:54,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:09:54,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:54,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:54,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:54,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:54,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:54,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:54,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:54,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:54,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:54,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:54,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:09:54,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:09:54,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-14 22:09:54,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:54,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:09:54,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:54,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:09:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:54,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:54,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:54,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:09:54,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:54,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 22:09:54,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:54,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:54,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:54,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:54,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:09:54,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:55,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:09:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:55,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:55,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:55,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:09:55,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:55,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:09:55,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:55,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:55,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:55,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:09:55,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:55,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:55,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 22:09:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:55,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:55,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:55,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:09:55,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:55,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:09:55,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:55,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:09:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:55,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:56,034 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 321 proven. 180 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-14 22:09:56,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197619800] [2020-10-14 22:09:56,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:56,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:09:56,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023097997] [2020-10-14 22:09:56,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:56,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:56,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:56,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:56,037 INFO L87 Difference]: Start difference. First operand 5879 states and 6491 transitions. Second operand 7 states. [2020-10-14 22:09:58,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:58,987 INFO L93 Difference]: Finished difference Result 11086 states and 12297 transitions. [2020-10-14 22:09:58,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:09:58,988 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 705 [2020-10-14 22:09:58,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:59,012 INFO L225 Difference]: With dead ends: 11086 [2020-10-14 22:09:59,012 INFO L226 Difference]: Without dead ends: 5889 [2020-10-14 22:09:59,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:09:59,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5889 states. [2020-10-14 22:09:59,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5889 to 5879. [2020-10-14 22:09:59,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5879 states. [2020-10-14 22:09:59,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 6489 transitions. [2020-10-14 22:09:59,139 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 6489 transitions. Word has length 705 [2020-10-14 22:09:59,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:59,141 INFO L479 AbstractCegarLoop]: Abstraction has 5879 states and 6489 transitions. [2020-10-14 22:09:59,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:59,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 6489 transitions. [2020-10-14 22:09:59,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2020-10-14 22:09:59,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:59,171 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:09:59,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:09:59,172 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:59,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:59,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1769326142, now seen corresponding path program 1 times [2020-10-14 22:09:59,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:59,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501580481] [2020-10-14 22:09:59,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:59,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:59,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:59,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:04,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:04,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 757 [2020-10-14 22:10:04,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:10:04,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 22:10:04,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:04,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:10:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:10:04,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:04,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:04,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:04,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:04,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:04,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:04,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:10:04,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:04,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:04,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:04,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:04,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:04,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:04,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:04,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:04,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:10:04,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:04,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:04,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:04,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:04,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:10:04,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:04,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:04,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:04,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:04,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:10:04,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:04,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:10:04,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:04,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:04,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:10:04,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:04,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:10:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:04,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:05,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:05,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:05,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:05,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:10:05,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:05,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:10:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:10:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:05,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:05,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:05,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:10:05,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:05,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:10:05,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:05,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:05,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:05,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:10:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:05,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:10:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:05,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:05,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:05,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:05,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:05,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:10:05,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:05,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:05,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:05,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:10:05,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:05,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:05,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 261 proven. 306 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2020-10-14 22:10:05,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501580481] [2020-10-14 22:10:05,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:05,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:05,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140981240] [2020-10-14 22:10:05,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:05,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:05,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:05,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:05,652 INFO L87 Difference]: Start difference. First operand 5879 states and 6489 transitions. Second operand 7 states. [2020-10-14 22:10:11,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:11,345 INFO L93 Difference]: Finished difference Result 13820 states and 15408 transitions. [2020-10-14 22:10:11,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:10:11,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 739 [2020-10-14 22:10:11,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:11,371 INFO L225 Difference]: With dead ends: 13820 [2020-10-14 22:10:11,371 INFO L226 Difference]: Without dead ends: 8279 [2020-10-14 22:10:11,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:10:11,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8279 states. [2020-10-14 22:10:11,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8279 to 7932. [2020-10-14 22:10:11,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7932 states. [2020-10-14 22:10:11,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7932 states to 7932 states and 8769 transitions. [2020-10-14 22:10:11,519 INFO L78 Accepts]: Start accepts. Automaton has 7932 states and 8769 transitions. Word has length 739 [2020-10-14 22:10:11,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:11,520 INFO L479 AbstractCegarLoop]: Abstraction has 7932 states and 8769 transitions. [2020-10-14 22:10:11,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 7932 states and 8769 transitions. [2020-10-14 22:10:11,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2020-10-14 22:10:11,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:11,534 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:10:11,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:10:11,535 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:11,536 INFO L82 PathProgramCache]: Analyzing trace with hash -518616997, now seen corresponding path program 1 times [2020-10-14 22:10:11,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:11,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549695390] [2020-10-14 22:10:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:11,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:11,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:12,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:16,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:16,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:16,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 818 [2020-10-14 22:10:16,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:16,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-14 22:10:16,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:16,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:16,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:16,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 22:10:16,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:10:16,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:16,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:16,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:16,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:16,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:16,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:16,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:10:16,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:16,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:16,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:16,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:16,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:16,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:16,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:16,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:16,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:16,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:16,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:16,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:10:16,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:16,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:16,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:17,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:17,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:17,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:17,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:10:17,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:17,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:10:17,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:17,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:17,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:17,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:10:17,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:17,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:10:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:17,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:17,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:17,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:17,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:17,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:10:17,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:17,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:10:17,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:17,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:10:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:17,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:17,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:17,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:10:17,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:17,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 22:10:17,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:17,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:17,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:10:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:17,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:17,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:10:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:17,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:17,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:17,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:17,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:17,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 22:10:17,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:17,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:17,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:17,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:10:17,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:17,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:18,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 363 proven. 180 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-10-14 22:10:18,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549695390] [2020-10-14 22:10:18,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:18,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:18,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436619514] [2020-10-14 22:10:18,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:18,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:18,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:18,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:18,914 INFO L87 Difference]: Start difference. First operand 7932 states and 8769 transitions. Second operand 7 states. [2020-10-14 22:10:22,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:22,615 INFO L93 Difference]: Finished difference Result 15535 states and 17250 transitions. [2020-10-14 22:10:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:10:22,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 800 [2020-10-14 22:10:22,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:22,643 INFO L225 Difference]: With dead ends: 15535 [2020-10-14 22:10:22,643 INFO L226 Difference]: Without dead ends: 8285 [2020-10-14 22:10:22,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:10:22,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8285 states. [2020-10-14 22:10:22,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8285 to 8273. [2020-10-14 22:10:22,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8273 states. [2020-10-14 22:10:22,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8273 states to 8273 states and 9126 transitions. [2020-10-14 22:10:22,805 INFO L78 Accepts]: Start accepts. Automaton has 8273 states and 9126 transitions. Word has length 800 [2020-10-14 22:10:22,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:22,806 INFO L479 AbstractCegarLoop]: Abstraction has 8273 states and 9126 transitions. [2020-10-14 22:10:22,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 8273 states and 9126 transitions. [2020-10-14 22:10:22,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2020-10-14 22:10:22,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:22,828 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:10:22,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:10:22,828 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:22,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:22,829 INFO L82 PathProgramCache]: Analyzing trace with hash 68159799, now seen corresponding path program 1 times [2020-10-14 22:10:22,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:22,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520796075] [2020-10-14 22:10:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:23,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:23,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:23,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:26,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:28,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:28,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 820 [2020-10-14 22:10:28,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:28,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 22:10:28,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:28,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-14 22:10:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:10:28,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:28,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:28,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:28,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:28,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:28,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:28,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:10:28,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:28,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:28,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:28,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:28,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:28,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:28,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:28,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:28,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:28,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:28,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:28,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:10:28,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:28,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:28,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:28,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:28,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:28,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:28,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:28,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:28,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:28,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:10:28,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:28,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:10:28,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:28,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:28,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:28,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:28,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 22:10:28,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:28,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:10:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:28,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:28,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:28,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:28,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:28,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 22:10:28,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:28,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:10:28,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:28,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:10:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:28,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:28,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:28,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:10:28,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:28,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:10:28,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:28,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:10:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:28,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:28,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-14 22:10:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:28,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:28,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:28,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:28,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:28,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:10:28,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:28,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:10:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:28,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1194 backedges. 363 proven. 180 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2020-10-14 22:10:28,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520796075] [2020-10-14 22:10:28,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:28,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:28,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681040012] [2020-10-14 22:10:28,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:28,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:28,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:28,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:28,962 INFO L87 Difference]: Start difference. First operand 8273 states and 9126 transitions. Second operand 7 states. [2020-10-14 22:10:34,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:34,135 INFO L93 Difference]: Finished difference Result 19278 states and 21618 transitions. [2020-10-14 22:10:34,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:10:34,136 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 802 [2020-10-14 22:10:34,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:34,170 INFO L225 Difference]: With dead ends: 19278 [2020-10-14 22:10:34,170 INFO L226 Difference]: Without dead ends: 11687 [2020-10-14 22:10:34,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:10:34,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11687 states. [2020-10-14 22:10:34,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11687 to 11342. [2020-10-14 22:10:34,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11342 states. [2020-10-14 22:10:34,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11342 states to 11342 states and 12525 transitions. [2020-10-14 22:10:34,388 INFO L78 Accepts]: Start accepts. Automaton has 11342 states and 12525 transitions. Word has length 802 [2020-10-14 22:10:34,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:34,389 INFO L479 AbstractCegarLoop]: Abstraction has 11342 states and 12525 transitions. [2020-10-14 22:10:34,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 11342 states and 12525 transitions. [2020-10-14 22:10:34,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2020-10-14 22:10:34,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:34,408 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:10:34,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:10:34,409 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:34,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:34,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1257689051, now seen corresponding path program 1 times [2020-10-14 22:10:34,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:34,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322109548] [2020-10-14 22:10:34,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:34,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:35,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:39,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:39,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 854 [2020-10-14 22:10:39,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:10:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 22:10:39,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:39,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 712 [2020-10-14 22:10:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:10:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:39,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:39,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:39,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:39,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:39,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:39,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:10:39,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:39,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:39,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:39,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:39,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:39,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:39,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:39,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:39,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:10:39,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:39,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:39,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:39,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:39,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:39,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:39,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:10:39,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:39,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:10:39,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:39,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:39,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:39,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:39,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:39,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:39,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:10:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:39,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:39,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:39,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:10:39,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:39,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:10:39,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:39,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:39,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:39,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:39,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:39,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:39,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:10:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:40,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:40,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:40,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:10:40,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:40,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:10:40,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:40,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:40,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:40,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:40,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:10:40,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:40,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2020-10-14 22:10:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:40,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:40,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:40,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:40,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:40,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:10:40,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:40,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:10:40,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:40,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 507 proven. 2 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2020-10-14 22:10:40,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322109548] [2020-10-14 22:10:40,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:40,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:40,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747553135] [2020-10-14 22:10:40,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:40,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:40,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:40,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:40,536 INFO L87 Difference]: Start difference. First operand 11342 states and 12525 transitions. Second operand 7 states. [2020-10-14 22:10:43,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:43,634 INFO L93 Difference]: Finished difference Result 24378 states and 27177 transitions. [2020-10-14 22:10:43,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:10:43,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 836 [2020-10-14 22:10:43,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:43,676 INFO L225 Difference]: With dead ends: 24378 [2020-10-14 22:10:43,676 INFO L226 Difference]: Without dead ends: 13722 [2020-10-14 22:10:43,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:10:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13722 states. [2020-10-14 22:10:43,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13722 to 13042. [2020-10-14 22:10:43,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13042 states. [2020-10-14 22:10:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13042 states to 13042 states and 14595 transitions. [2020-10-14 22:10:43,957 INFO L78 Accepts]: Start accepts. Automaton has 13042 states and 14595 transitions. Word has length 836 [2020-10-14 22:10:43,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:43,958 INFO L479 AbstractCegarLoop]: Abstraction has 13042 states and 14595 transitions. [2020-10-14 22:10:43,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:43,959 INFO L276 IsEmpty]: Start isEmpty. Operand 13042 states and 14595 transitions. [2020-10-14 22:10:43,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2020-10-14 22:10:43,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:43,982 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:10:43,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:10:43,982 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:43,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:43,983 INFO L82 PathProgramCache]: Analyzing trace with hash 150451614, now seen corresponding path program 1 times [2020-10-14 22:10:43,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:43,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588074217] [2020-10-14 22:10:43,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:44,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:45,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:45,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:49,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:49,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 855 [2020-10-14 22:10:49,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:10:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4914 [2020-10-14 22:10:49,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:49,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 713 [2020-10-14 22:10:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:10:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:49,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:49,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:49,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:49,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:49,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:49,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:10:49,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:49,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:49,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:49,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:49,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:49,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:49,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:49,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:49,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:49,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:49,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:49,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:10:49,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:49,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:49,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:49,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:49,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:49,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:49,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:10:49,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:49,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:10:49,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:49,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:49,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:49,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:49,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:10:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:49,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:49,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:49,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:10:49,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:49,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:10:49,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:49,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:49,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:49,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:10:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:49,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:49,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:10:49,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:49,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:10:49,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:49,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:10:49,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2020-10-14 22:10:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:49,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:49,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:49,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:49,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:49,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 22:10:49,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:49,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:10:49,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:49,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 508 proven. 2 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2020-10-14 22:10:49,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588074217] [2020-10-14 22:10:49,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:49,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:49,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341338126] [2020-10-14 22:10:49,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:49,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:49,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:49,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:49,994 INFO L87 Difference]: Start difference. First operand 13042 states and 14595 transitions. Second operand 7 states. [2020-10-14 22:10:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:53,998 INFO L93 Difference]: Finished difference Result 28798 states and 32381 transitions. [2020-10-14 22:10:53,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:10:53,999 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 837 [2020-10-14 22:10:54,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:54,042 INFO L225 Difference]: With dead ends: 28798 [2020-10-14 22:10:54,042 INFO L226 Difference]: Without dead ends: 16099 [2020-10-14 22:10:54,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:10:54,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16099 states. [2020-10-14 22:10:54,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16099 to 15417. [2020-10-14 22:10:54,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15417 states. [2020-10-14 22:10:54,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15417 states to 15417 states and 17067 transitions. [2020-10-14 22:10:54,339 INFO L78 Accepts]: Start accepts. Automaton has 15417 states and 17067 transitions. Word has length 837 [2020-10-14 22:10:54,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:54,340 INFO L479 AbstractCegarLoop]: Abstraction has 15417 states and 17067 transitions. [2020-10-14 22:10:54,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:54,341 INFO L276 IsEmpty]: Start isEmpty. Operand 15417 states and 17067 transitions. [2020-10-14 22:10:54,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2020-10-14 22:10:54,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:54,365 INFO L422 BasicCegarLoop]: trace histogram [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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:54,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:10:54,366 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:54,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:54,366 INFO L82 PathProgramCache]: Analyzing trace with hash -80124353, now seen corresponding path program 1 times [2020-10-14 22:10:54,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:54,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479474985] [2020-10-14 22:10:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:54,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:54,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:56,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:56,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:59,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 886 [2020-10-14 22:10:59,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:59,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 22:10:59,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:59,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:59,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:59,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-14 22:10:59,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:10:59,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:59,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:59,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:59,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:59,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:59,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:10:59,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:59,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:59,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:59,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:59,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:59,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:59,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:10:59,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:59,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:10:59,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:59,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:59,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:59,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:10:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:59,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:59,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:10:59,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:59,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:10:59,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:59,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:59,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:59,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:10:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:59,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:10:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:59,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:00,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:00,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:11:00,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:00,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 22:11:00,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:00,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:11:00,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:00,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-14 22:11:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:00,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:00,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:00,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:11:00,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:00,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:11:00,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:00,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-14 22:11:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:00,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:00,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 736 [2020-10-14 22:11:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:00,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:00,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:00,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:11:00,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:00,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:11:00,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:00,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:00,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:00,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:11:00,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:00,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1346 backedges. 452 proven. 243 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2020-10-14 22:11:00,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479474985] [2020-10-14 22:11:00,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:00,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:00,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274603262] [2020-10-14 22:11:00,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:00,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:00,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:00,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:00,811 INFO L87 Difference]: Start difference. First operand 15417 states and 17067 transitions. Second operand 7 states. [2020-10-14 22:11:04,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:04,777 INFO L93 Difference]: Finished difference Result 33873 states and 37780 transitions. [2020-10-14 22:11:04,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:11:04,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 868 [2020-10-14 22:11:04,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:04,830 INFO L225 Difference]: With dead ends: 33873 [2020-10-14 22:11:04,830 INFO L226 Difference]: Without dead ends: 18800 [2020-10-14 22:11:04,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:11:04,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18800 states. [2020-10-14 22:11:05,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18800 to 18124. [2020-10-14 22:11:05,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18124 states. [2020-10-14 22:11:05,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18124 states to 18124 states and 19993 transitions. [2020-10-14 22:11:05,149 INFO L78 Accepts]: Start accepts. Automaton has 18124 states and 19993 transitions. Word has length 868 [2020-10-14 22:11:05,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:05,149 INFO L479 AbstractCegarLoop]: Abstraction has 18124 states and 19993 transitions. [2020-10-14 22:11:05,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:05,150 INFO L276 IsEmpty]: Start isEmpty. Operand 18124 states and 19993 transitions. [2020-10-14 22:11:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2020-10-14 22:11:05,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:05,180 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:05,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:11:05,181 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:05,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:05,182 INFO L82 PathProgramCache]: Analyzing trace with hash -739196953, now seen corresponding path program 1 times [2020-10-14 22:11:05,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:05,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611817943] [2020-10-14 22:11:05,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:05,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:06,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:06,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:10,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:10,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 930 [2020-10-14 22:11:10,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:11:10,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5105 [2020-10-14 22:11:10,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:10,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 654 [2020-10-14 22:11:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 22:11:10,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:10,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:10,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:10,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:10,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:10,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:10,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:11:10,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:10,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:10,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:10,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:10,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:10,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:10,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:10,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:10,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:11:10,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:10,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:11:10,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:10,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:10,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:10,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:10,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:10,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:10,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:11:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:10,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:10,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:10,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:11:10,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:10,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:11:10,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:10,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:10,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:10,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:11:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:10,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:10,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:10,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:11:10,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:10,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:11:10,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:10,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:10,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:10,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 22:11:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:10,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:10,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:10,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:11:10,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:10,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:11:10,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:10,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:10,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:10,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:10,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 22:11:10,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:10,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 22:11:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:11,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:11,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:11,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:11:11,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:11,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 22:11:11,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:11,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:11,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:11,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:11,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 22:11:11,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:11,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 778 [2020-10-14 22:11:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:11,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:11,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:11,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:11:11,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:11,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:11:11,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:11,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:11:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:11,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1881 backedges. 620 proven. 114 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2020-10-14 22:11:11,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611817943] [2020-10-14 22:11:11,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:11,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:11:11,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164781655] [2020-10-14 22:11:11,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:11:11,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:11,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:11:11,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:11:11,650 INFO L87 Difference]: Start difference. First operand 18124 states and 19993 transitions. Second operand 8 states. [2020-10-14 22:11:16,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:16,920 INFO L93 Difference]: Finished difference Result 37596 states and 41659 transitions. [2020-10-14 22:11:16,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:11:16,921 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 910 [2020-10-14 22:11:16,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:16,966 INFO L225 Difference]: With dead ends: 37596 [2020-10-14 22:11:16,966 INFO L226 Difference]: Without dead ends: 19817 [2020-10-14 22:11:16,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 22:11:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19817 states. [2020-10-14 22:11:17,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19817 to 19139. [2020-10-14 22:11:17,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19139 states. [2020-10-14 22:11:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19139 states to 19139 states and 20573 transitions. [2020-10-14 22:11:17,310 INFO L78 Accepts]: Start accepts. Automaton has 19139 states and 20573 transitions. Word has length 910 [2020-10-14 22:11:17,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:17,311 INFO L479 AbstractCegarLoop]: Abstraction has 19139 states and 20573 transitions. [2020-10-14 22:11:17,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:11:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 19139 states and 20573 transitions. [2020-10-14 22:11:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2020-10-14 22:11:17,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:17,344 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:11:17,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:11:17,345 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:17,345 INFO L82 PathProgramCache]: Analyzing trace with hash 693448354, now seen corresponding path program 1 times [2020-10-14 22:11:17,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:17,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353088660] [2020-10-14 22:11:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:17,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:17,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:17,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:22,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:22,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1001 [2020-10-14 22:11:22,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:11:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-14 22:11:22,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:22,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 712 [2020-10-14 22:11:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:11:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:22,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:22,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:22,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:22,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:22,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:22,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:11:22,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:22,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:22,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:22,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:22,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:22,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:22,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:22,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:22,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:11:22,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:22,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:22,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:22,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:22,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:22,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:22,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:22,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:22,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:22,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:11:22,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:22,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:11:22,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:22,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:22,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:22,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:22,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:22,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:11:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:22,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:22,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:22,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:11:22,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:22,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:11:22,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:22,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:22,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:22,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:22,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:22,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:23,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:11:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:23,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:23,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:23,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:11:23,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:23,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:11:23,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:23,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:23,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:23,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:23,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:11:23,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:23,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2020-10-14 22:11:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:23,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:23,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:23,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:11:23,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:23,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 22:11:23,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:23,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:23,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:23,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:23,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:11:23,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 789 proven. 2 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2020-10-14 22:11:24,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353088660] [2020-10-14 22:11:24,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:24,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:24,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370685554] [2020-10-14 22:11:24,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:24,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:24,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:24,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:24,564 INFO L87 Difference]: Start difference. First operand 19139 states and 20573 transitions. Second operand 7 states. [2020-10-14 22:11:29,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:29,036 INFO L93 Difference]: Finished difference Result 39625 states and 42686 transitions. [2020-10-14 22:11:29,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:11:29,037 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 983 [2020-10-14 22:11:29,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:29,085 INFO L225 Difference]: With dead ends: 39625 [2020-10-14 22:11:29,086 INFO L226 Difference]: Without dead ends: 21172 [2020-10-14 22:11:29,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:11:29,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21172 states. [2020-10-14 22:11:29,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21172 to 20833. [2020-10-14 22:11:29,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20833 states. [2020-10-14 22:11:29,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20833 states to 20833 states and 22348 transitions. [2020-10-14 22:11:29,426 INFO L78 Accepts]: Start accepts. Automaton has 20833 states and 22348 transitions. Word has length 983 [2020-10-14 22:11:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:29,428 INFO L479 AbstractCegarLoop]: Abstraction has 20833 states and 22348 transitions. [2020-10-14 22:11:29,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:29,428 INFO L276 IsEmpty]: Start isEmpty. Operand 20833 states and 22348 transitions. [2020-10-14 22:11:29,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2020-10-14 22:11:29,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:29,457 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:11:29,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:11:29,458 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:29,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:29,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1158928058, now seen corresponding path program 1 times [2020-10-14 22:11:29,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:29,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323418386] [2020-10-14 22:11:29,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:29,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:30,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:32,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:32,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1015 [2020-10-14 22:11:32,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:11:32,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2806 [2020-10-14 22:11:32,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:32,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 726 [2020-10-14 22:11:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:11:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:32,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:32,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:32,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:32,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:32,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:32,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:11:32,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:32,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:32,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:32,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:32,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:32,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:32,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:11:32,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:11:32,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:32,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:32,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:11:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:32,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:32,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:32,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:11:32,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:32,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:11:32,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:32,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:32,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:32,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:32,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:32,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:32,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:11:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:32,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:32,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:32,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:11:32,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:32,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:11:32,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:32,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:32,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:32,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:32,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:32,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:32,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 22:11:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:32,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:32,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:32,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:11:32,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:32,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:11:32,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:32,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:32,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:32,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 22:11:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:32,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:32,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:32,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:11:32,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:32,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:11:32,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:32,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:11:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:32,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2020-10-14 22:11:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:32,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:33,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:33,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:11:33,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:33,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-14 22:11:33,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:33,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:33,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:33,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:33,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:11:33,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:34,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 821 proven. 2 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2020-10-14 22:11:34,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323418386] [2020-10-14 22:11:34,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:34,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:34,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147829264] [2020-10-14 22:11:34,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:34,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:34,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:34,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:34,302 INFO L87 Difference]: Start difference. First operand 20833 states and 22348 transitions. Second operand 7 states. [2020-10-14 22:11:38,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:38,051 INFO L93 Difference]: Finished difference Result 41321 states and 44373 transitions. [2020-10-14 22:11:38,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:11:38,052 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 995 [2020-10-14 22:11:38,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:38,088 INFO L225 Difference]: With dead ends: 41321 [2020-10-14 22:11:38,088 INFO L226 Difference]: Without dead ends: 21174 [2020-10-14 22:11:38,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:11:38,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21174 states. [2020-10-14 22:11:38,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21174 to 21174. [2020-10-14 22:11:38,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21174 states. [2020-10-14 22:11:38,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21174 states to 21174 states and 22692 transitions. [2020-10-14 22:11:38,426 INFO L78 Accepts]: Start accepts. Automaton has 21174 states and 22692 transitions. Word has length 995 [2020-10-14 22:11:38,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:38,427 INFO L479 AbstractCegarLoop]: Abstraction has 21174 states and 22692 transitions. [2020-10-14 22:11:38,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:38,427 INFO L276 IsEmpty]: Start isEmpty. Operand 21174 states and 22692 transitions. [2020-10-14 22:11:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1069 [2020-10-14 22:11:38,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:38,456 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:38,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:11:38,457 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:38,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:38,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1104154769, now seen corresponding path program 1 times [2020-10-14 22:11:38,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:38,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430959487] [2020-10-14 22:11:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:38,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:39,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:39,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1086 [2020-10-14 22:11:39,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:39,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1209 [2020-10-14 22:11:39,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:39,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1061 [2020-10-14 22:11:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 22:11:39,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:40,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:11:40,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:40,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:11:40,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:11:40,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:11:40,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:11:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 22:11:40,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:11:40,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-10-14 22:11:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:11:40,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:11:40,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:40,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2020-10-14 22:11:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:11:40,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 22:11:40,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 22:11:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1864 backedges. 97 proven. 5 refuted. 0 times theorem prover too weak. 1762 trivial. 0 not checked. [2020-10-14 22:11:41,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430959487] [2020-10-14 22:11:41,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:41,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:11:41,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333797048] [2020-10-14 22:11:41,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:11:41,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:41,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:11:41,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:11:41,665 INFO L87 Difference]: Start difference. First operand 21174 states and 22692 transitions. Second operand 5 states. [2020-10-14 22:11:44,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:44,858 INFO L93 Difference]: Finished difference Result 41662 states and 44689 transitions. [2020-10-14 22:11:44,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:11:44,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1068 [2020-10-14 22:11:44,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:44,887 INFO L225 Difference]: With dead ends: 41662 [2020-10-14 22:11:44,887 INFO L226 Difference]: Without dead ends: 21174 [2020-10-14 22:11:44,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:11:44,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21174 states. [2020-10-14 22:11:45,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21174 to 21172. [2020-10-14 22:11:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21172 states. [2020-10-14 22:11:45,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21172 states to 21172 states and 22348 transitions. [2020-10-14 22:11:45,142 INFO L78 Accepts]: Start accepts. Automaton has 21172 states and 22348 transitions. Word has length 1068 [2020-10-14 22:11:45,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:45,142 INFO L479 AbstractCegarLoop]: Abstraction has 21172 states and 22348 transitions. [2020-10-14 22:11:45,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:11:45,142 INFO L276 IsEmpty]: Start isEmpty. Operand 21172 states and 22348 transitions. [2020-10-14 22:11:45,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1302 [2020-10-14 22:11:45,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:45,166 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:45,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:11:45,166 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:45,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:45,167 INFO L82 PathProgramCache]: Analyzing trace with hash 527462046, now seen corresponding path program 1 times [2020-10-14 22:11:45,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:45,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248841606] [2020-10-14 22:11:45,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:45,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:45,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:50,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:50,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1323 [2020-10-14 22:11:50,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:11:50,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-14 22:11:50,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:50,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 851 [2020-10-14 22:11:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:11:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:50,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:50,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:50,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:50,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:50,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:50,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:11:50,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:50,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:50,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:50,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:50,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:50,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:50,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:50,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:50,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:11:50,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:50,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:11:50,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:50,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:50,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:50,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:11:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:50,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:50,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:50,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:11:50,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:50,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:11:50,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:50,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:50,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:50,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:50,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:50,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:50,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:11:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:50,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:50,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:50,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:11:50,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:50,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:11:50,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:50,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:50,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:50,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:50,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:50,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:50,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 22:11:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:50,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:50,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:50,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:11:50,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:50,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:11:50,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:50,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:50,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:51,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 22:11:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:51,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:51,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:51,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:11:51,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:51,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 22:11:51,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:51,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:51,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:51,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:51,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:11:51,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:51,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-14 22:11:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:51,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:51,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:51,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:11:51,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:51,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-14 22:11:51,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:51,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:51,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:51,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:51,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:11:51,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:51,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1114 [2020-10-14 22:11:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:52,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:52,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:52,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:11:52,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:52,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:11:52,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:52,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:11:52,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:52,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:53,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3166 backedges. 984 proven. 169 refuted. 0 times theorem prover too weak. 2013 trivial. 0 not checked. [2020-10-14 22:11:53,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248841606] [2020-10-14 22:11:53,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:53,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:53,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133323226] [2020-10-14 22:11:53,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:53,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:53,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:53,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:53,128 INFO L87 Difference]: Start difference. First operand 21172 states and 22348 transitions. Second operand 7 states. [2020-10-14 22:11:57,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:57,167 INFO L93 Difference]: Finished difference Result 41668 states and 44014 transitions. [2020-10-14 22:11:57,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:11:57,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1301 [2020-10-14 22:11:57,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:57,197 INFO L225 Difference]: With dead ends: 41668 [2020-10-14 22:11:57,197 INFO L226 Difference]: Without dead ends: 21182 [2020-10-14 22:11:57,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:11:57,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21182 states. [2020-10-14 22:11:57,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21182 to 21172. [2020-10-14 22:11:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21172 states. [2020-10-14 22:11:57,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21172 states to 21172 states and 22336 transitions. [2020-10-14 22:11:57,440 INFO L78 Accepts]: Start accepts. Automaton has 21172 states and 22336 transitions. Word has length 1301 [2020-10-14 22:11:57,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:57,441 INFO L479 AbstractCegarLoop]: Abstraction has 21172 states and 22336 transitions. [2020-10-14 22:11:57,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:57,441 INFO L276 IsEmpty]: Start isEmpty. Operand 21172 states and 22336 transitions. [2020-10-14 22:11:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1365 [2020-10-14 22:11:57,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:57,461 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:57,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:11:57,462 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:57,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:57,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1652064755, now seen corresponding path program 1 times [2020-10-14 22:11:57,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:57,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807160187] [2020-10-14 22:11:57,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:57,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:58,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:58,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:02,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:02,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1386 [2020-10-14 22:12:02,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:12:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-14 22:12:02,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:02,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 914 [2020-10-14 22:12:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:12:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:02,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:02,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:02,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:02,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:02,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:02,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:12:02,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:02,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:02,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:02,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:03,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:03,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:12:03,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:03,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:12:03,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:03,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:03,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:03,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:03,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:03,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:03,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:12:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:03,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:03,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:03,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:12:03,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:03,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:12:03,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:03,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:03,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:03,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:12:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:03,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:03,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:03,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 22:12:03,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:03,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:12:03,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:03,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:03,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:03,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-10-14 22:12:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:03,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:03,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:03,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:12:03,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:03,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:12:03,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:03,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:03,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:03,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2020-10-14 22:12:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:03,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:03,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:03,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:12:03,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:03,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:12:03,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:03,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:03,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:03,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:03,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:12:03,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:03,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 904 [2020-10-14 22:12:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:03,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:03,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:03,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:03,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:03,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-10-14 22:12:03,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:03,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:03,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:03,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:03,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:12:03,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:04,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1177 [2020-10-14 22:12:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:04,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:04,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:04,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:12:04,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:04,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:12:04,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:04,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:12:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:04,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:05,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3402 backedges. 1047 proven. 169 refuted. 0 times theorem prover too weak. 2186 trivial. 0 not checked. [2020-10-14 22:12:05,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807160187] [2020-10-14 22:12:05,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:05,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:05,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491951417] [2020-10-14 22:12:05,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:05,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:05,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:05,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:05,403 INFO L87 Difference]: Start difference. First operand 21172 states and 22336 transitions. Second operand 7 states. [2020-10-14 22:12:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:10,422 INFO L93 Difference]: Finished difference Result 42338 states and 44670 transitions. [2020-10-14 22:12:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:12:10,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1364 [2020-10-14 22:12:10,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:10,457 INFO L225 Difference]: With dead ends: 42338 [2020-10-14 22:12:10,457 INFO L226 Difference]: Without dead ends: 21852 [2020-10-14 22:12:10,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:12:10,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21852 states. [2020-10-14 22:12:10,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21852 to 21509. [2020-10-14 22:12:10,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21509 states. [2020-10-14 22:12:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21509 states to 21509 states and 22666 transitions. [2020-10-14 22:12:10,731 INFO L78 Accepts]: Start accepts. Automaton has 21509 states and 22666 transitions. Word has length 1364 [2020-10-14 22:12:10,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:10,733 INFO L479 AbstractCegarLoop]: Abstraction has 21509 states and 22666 transitions. [2020-10-14 22:12:10,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:10,733 INFO L276 IsEmpty]: Start isEmpty. Operand 21509 states and 22666 transitions. [2020-10-14 22:12:10,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1531 [2020-10-14 22:12:10,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:10,777 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 2, 2, 2, 2, 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] [2020-10-14 22:12:10,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 22:12:10,777 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:10,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:10,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1311397147, now seen corresponding path program 1 times [2020-10-14 22:12:10,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:10,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580650931] [2020-10-14 22:12:10,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:11,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:11,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:12,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking...